From mapalmer at fnal.gov Tue Dec 4 12:48:20 2012 From: mapalmer at fnal.gov (Mark A Palmer) Date: Tue, 4 Dec 2012 17:48:20 +0000 Subject: [MAP] Abstracts for IPAC13 Message-ID: <292CBC06-699B-4295-9F3A-9CE42E5BC23F@fnal.gov> Dear All, Abstracts for IPAC13 are coming due tomorrow. If you are submitting an abstract, please send a copy to your L1 and L2 managers, with a cc to me, so that we can keep track of the full list of MAP submissions. Also, the information I have is that DOE will be closing off the potential attendees list in their travel system as of the middle of this month. So we will be facing this cutoff as well as this year's special budgetary constraints when planning our attendance. Best Regards, Mark Mark A. Palmer, Director, U.S. Muon Accelerator Program Fermilab, P.O. Box 500, MS221, Batavia, IL 60510-0500 Email: mapalmer at fnal.gov Voice: (630)840-4036 -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121204/fc7439e1/attachment.html From diktys at bnl.gov Thu Dec 6 23:01:24 2012 From: diktys at bnl.gov (Diktys Stratakis) Date: Thu, 6 Dec 2012 23:01:24 -0500 Subject: [MAP] MAP Meeting Tomorrow Message-ID: Dear All, There will be a MAP meeting tomorrow, December 7th @1pm (FNAL time) AGENDA 1. Summary of the workshop on Accelerators for a Higgs Factory Speaker: David Neuffer (FNAL) https://indico.fnal.gov/conferenceDisplay.py?confId=6176 For those at Fermilab, the room is WH 3NW ? Theory Regards, Diktys ------------------------------------------ Phone details: Ready Talk 866-740-1260 Access code: 5673390 (enter this code (or International code), followed by ?#?) The international Toll-Free Numbers can be found at: http://www.readytalk.com/intl International Toll Number: 303-248-0285 -- Diktys Stratakis, Ph. D. Assistant Physicist Department of Physics Brookhaven National Laboratory P.O. Box 5000 Upton, NY 11973 Web: https://pubweb.bnl.gov/~diktys/ -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121206/9a520562/attachment.html From bross at fnal.gov Thu Dec 13 13:55:13 2012 From: bross at fnal.gov (Alan D Bross) Date: Thu, 13 Dec 2012 18:55:13 +0000 Subject: [MAP] Job Opening Message-ID: <161C422AB24ADC468109844457B06BAF03B7C9CD@MAIL01.fnal.gov> FYI: From: Sue Geddes > Subject: FW: ASTeC at Daresbury AP job advert Date: 12 December 2012 15:19:02 GMT To: > Reply-To: Public events at the John Adams Institute > Dear Sue, Could you circulate this among the JAI? Thanks, Phil We have a vacancy for a Staff Accelerator Physicist based at Daresbury in the Cockcroft Institute. We will employ a Physics BSc/MPhys at STFC band C, or an Accelerator Physics PhD at STFC band D. For AP graduate recruits without a PhD we encourage them to undertake one part time. The contract will be permanent. We would very much like to encourage applications from interested candidates at Oxford. http://www.jobs.ac.uk/job/AFR193/accelerator-physicist/ It appears at Top careers on RCUK site with more details : http://www.topcareer.jobs/Vacancy/irc74909_2589.aspx The advert has also gone to Bright recruits and CERN courier online : http://brightrecruits.com/job/4506/accelerator-physicist http://cerncourier.com/cws/job/J000007427 The closing date is 24th January. --- Adams Institute news and events page: http://www.adams-institute.ac.uk/news.php Alan Bross (630) 840-4880 (office) (630) 667-3061 (cell) bross at fnal.gov -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121213/6e01b89c/attachment.html From diktys at bnl.gov Thu Dec 13 17:35:55 2012 From: diktys at bnl.gov (Diktys Stratakis) Date: Thu, 13 Dec 2012 17:35:55 -0500 Subject: [MAP] MAP Meeting Tomorrow Message-ID: Dear All, At tomorrow's MAP Weekly Meeting we will have the first of a series of monthly meetings where we will review program progress in each of our Level 2 management areas. These monthly meeting will be used to familiarize everyone with the range of activities being pursued and to help assess progress in the program through the course of the year. Please join us. Regards, Diktys -- Diktys Stratakis, Ph. D. Assistant Physicist Department of Physics Brookhaven National Laboratory P.O. Box 5000 Upton, NY 11973 Web: https://pubweb.bnl.gov/~diktys/ -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121213/01844c66/attachment.html From mapalmer at fnal.gov Fri Dec 14 16:36:50 2012 From: mapalmer at fnal.gov (Mark A Palmer) Date: Fri, 14 Dec 2012 21:36:50 +0000 Subject: [MAP] MAP Meeting Tomorrow In-Reply-To: References: Message-ID: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> Dear All, It turns out that I made an egregious mistake in the preparation of today's slides and left out Kirk McDonald's L2 status report on Targetry & Absorbers. My sincere apologies to Kirk whom we'll hear from next month. The posted slides on Indico have now been corrected. Have a Wonderful Weekend, Mark On Dec 13, 2012, at 4:35 PM, Diktys Stratakis wrote: Dear All, At tomorrow's MAP Weekly Meeting we will have the first of a series of monthly meetings where we will review program progress in each of our Level 2 management areas. These monthly meeting will be used to familiarize everyone with the range of activities being pursued and to help assess progress in the program through the course of the year. Please join us. Regards, Diktys -- Diktys Stratakis, Ph. D. Assistant Physicist Department of Physics Brookhaven National Laboratory P.O. Box 5000 Upton, NY 11973 Web: https://pubweb.bnl.gov/~diktys/ _______________________________________________ MAP-l mailing list MAP-l at lists.bnl.gov https://lists.bnl.gov/mailman/listinfo/map-l Mark A. Palmer, Director, U.S. Muon Accelerator Program Fermilab, P.O. Box 500, MS221, Batavia, IL 60510-0500 Email: mapalmer at fnal.gov Voice: (630)840-4036 -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121214/39ad70aa/attachment.html From kirkmcd at Princeton.EDU Wed Dec 19 23:36:27 2012 From: kirkmcd at Princeton.EDU (Kirk T McDonald) Date: Wed, 19 Dec 2012 23:36:27 -0500 Subject: [MAP] Light recycling; Piccione lip In-Reply-To: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> References: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> Message-ID: Folks, I have become fortuitously aware of an old trick in the lamp industry that is now sometimes called ?light recycling? ? with the goal of enhancing the optical brightness of light sources. Remember, brightness = power / area in transverse phase space (although the opticians don?t generally say it this way, perhaps using the buzzword ?etendue? instead of ?area in transverse phase space?) In our project, we try to increase the brightness by ?cooling?/shrinking the area in transverse phase space. The opticians? trick is to ?recycle? the light so that one photon gets counted many times in the same area in phase space, effectively increasing the power, while leave the emittance the same. The historical way of doing this (dating back at least to 1936) involves a cylindrical cavity lined with a phosphor (i.e., a fluorescent lamp) with a small slit in the phosphor to let light out. A photon has only a small probability P to escape out the slit directly after being emitted by the phosphor. Generally, the photon hits another region of the phosphor, is absorbed, and then re-emitted. [The cavity can be lined with a reflector to assist in this process.] On average, the photon bounces around N = 1 / P times before it escapes through the slit. Hence, the steady-state emission of photons by the phosphor surface is N times greater than if the photons flew away on their first emission ? as holds for an ordinary fluorescent lamp. The net effect is that the light coming out of the slit is N times brighter than the light from an ordinary fluorescent bulb of the same output power. The brightness has been enhanced N-fold (with no emittance reduction) to the extent that the absorption and re-emission involves no losses. [I think the lamps in Xerox machines and scanners are of this type.] I?ve written up a pedagogic note on this: http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf -------------------------------------- This trick seems different from what we do to enhance the brightness of particle beams. However, a comment by Fred Mills, dated 9/98, near the bottom of my web page http://puhep1.princeton.edu/~mcdonald/mumu/physics/ has me wondering if part of the effect of the ?Piccione lip? seen on p. 4 of http://puhep1.princeton.edu/~mcdonald/mumu/physics/lichtenberg_mura-110.pdf was to use multiple scattering in the ?lip? to kick some particles into a desired area of phase space. That is, perhaps we can say that ionization cooling also includes a small effect equivalent to the opticians? trick of ?light recycling?. What do you think? --Kirk PS The opticians are after big game = use of such tricks to make better solar energy concentrators for photovoltaic energy generation (or even just heating water). In the past, such efforts have not involved brightness enhancement, but only clever rearrangement of light in phase space (as in Winston cones). The next generation of brightness enhancement schemes uses materials with differing absorption and emission spectra to play additional ?tricks?. New engineered optical materials, called photonic band gap materials, could play a key role here. If these solar brightness-enhancement schemes pay off, they will be able to fund all of high energy physics.... -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121219/8b03ac88/attachment.html From ankenbra at fnal.gov Thu Dec 20 12:25:38 2012 From: ankenbra at fnal.gov (Charles M Ankenbrandt) Date: Thu, 20 Dec 2012 17:25:38 +0000 Subject: [MAP] Light recycling; Piccione lip In-Reply-To: References: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov>, Message-ID: Hi, Kirk. Very interesting! Note that the spreading out in time of the resulting photons doesn't matter if the initial source is CW, on all the time. This reminds me some aspects of my recent proposal called N-Ring CircUS; namely, the muons make multiple passes before finally finding their way out of the ring via a septum. And since the source is CW, it doesn't matter that it takes time to get out. Another way to say it is that, for a 100% duty cycle situation, only 5D of the 6D phase space matters. I've attached a brief summary of the N-Ring CircUS idea. --Chuck ________________________________ From: map-l-bounces at lists.bnl.gov [map-l-bounces at lists.bnl.gov] on behalf of Kirk T McDonald [kirkmcd at Princeton.EDU] Sent: Wednesday, December 19, 2012 10:36 PM To: Kirk McDonald Cc: MAP-l at lists.bnl.gov Subject: [MAP] Light recycling; Piccione lip Folks, I have become fortuitously aware of an old trick in the lamp industry that is now sometimes called ?light recycling? ? with the goal of enhancing the optical brightness of light sources. Remember, brightness = power / area in transverse phase space (although the opticians don?t generally say it this way, perhaps using the buzzword ?etendue? instead of ?area in transverse phase space?) In our project, we try to increase the brightness by ?cooling?/shrinking the area in transverse phase space. The opticians? trick is to ?recycle? the light so that one photon gets counted many times in the same area in phase space, effectively increasing the power, while leave the emittance the same. The historical way of doing this (dating back at least to 1936) involves a cylindrical cavity lined with a phosphor (i.e., a fluorescent lamp) with a small slit in the phosphor to let light out. A photon has only a small probability P to escape out the slit directly after being emitted by the phosphor. Generally, the photon hits another region of the phosphor, is absorbed, and then re-emitted. [The cavity can be lined with a reflector to assist in this process.] On average, the photon bounces around N = 1 / P times before it escapes through the slit. Hence, the steady-state emission of photons by the phosphor surface is N times greater than if the photons flew away on their first emission ? as holds for an ordinary fluorescent lamp. The net effect is that the light coming out of the slit is N times brighter than the light from an ordinary fluorescent bulb of the same output power. The brightness has been enhanced N-fold (with no emittance reduction) to the extent that the absorption and re-emission involves no losses. [I think the lamps in Xerox machines and scanners are of this type.] I?ve written up a pedagogic note on this: http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf -------------------------------------- This trick seems different from what we do to enhance the brightness of particle beams. However, a comment by Fred Mills, dated 9/98, near the bottom of my web page http://puhep1.princeton.edu/~mcdonald/mumu/physics/ has me wondering if part of the effect of the ?Piccione lip? seen on p. 4 of http://puhep1.princeton.edu/~mcdonald/mumu/physics/lichtenberg_mura-110.pdf was to use multiple scattering in the ?lip? to kick some particles into a desired area of phase space. That is, perhaps we can say that ionization cooling also includes a small effect equivalent to the opticians? trick of ?light recycling?. What do you think? --Kirk PS The opticians are after big game = use of such tricks to make better solar energy concentrators for photovoltaic energy generation (or even just heating water). In the past, such efforts have not involved brightness enhancement, but only clever rearrangement of light in phase space (as in Winston cones). The next generation of brightness enhancement schemes uses materials with differing absorption and emission spectra to play additional ?tricks?. New engineered optical materials, called photonic band gap materials, could play a key role here. If these solar brightness-enhancement schemes pay off, they will be able to fund all of high energy physics.... -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121220/4995d7b7/attachment-0001.html -------------- next part -------------- A non-text attachment was scrubbed... Name: NRingCircUS.docx Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document Size: 14314 bytes Desc: NRingCircUS.docx Url : https://lists.bnl.gov/mailman/private/map-l/attachments/20121220/4995d7b7/attachment-0001.bin From amsessler at lbl.gov Thu Dec 20 12:51:35 2012 From: amsessler at lbl.gov (Andrew Sessler) Date: Thu, 20 Dec 2012 09:51:35 -0800 Subject: [MAP] Light recycling; Piccione lip In-Reply-To: References: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> Message-ID: Thursday Dear Kirk, I think I would say it differently and I would appreciate your comment: "Wrong!, Okay, Partially." The photon number doesn't increase at each reflection, so the only effect is that the photon is bounced back and forth until it hits the hole and gets out. So, the effect is simply reducing the emittance from 4 pi (the whole sphere) to the area of the hole. Even simple to calculate the amplification. So, my view is not a re-using of photons, but a change in desired emittance. Andy On Wed, Dec 19, 2012 at 8:36 PM, Kirk T McDonald wrote: > Folks, > > I have become fortuitously aware of an old trick in the lamp industry > that is now sometimes called ?light recycling? ? with the goal of enhancing > the optical brightness of light sources. > > Remember, brightness = power / area in transverse phase space > (although the opticians don?t generally say it this way, perhaps using > the buzzword ?etendue? instead of ?area in transverse phase space?) > In our project, we try to increase the brightness by ?cooling?/shrinking > the area in transverse phase space. > > The opticians? trick is to ?recycle? the light so that one photon gets > counted many times in the same area in phase space, effectively increasing > the power, while leave the emittance the same. > > The historical way of doing this (dating back at least to 1936) involves > a cylindrical cavity lined with a phosphor (i.e., a fluorescent lamp) with > a small slit in the phosphor to let light out. > > A photon has only a small probability P to escape out the slit directly > after being emitted by the phosphor. > > Generally, the photon hits another region of the phosphor, is absorbed, > and then re-emitted. [The cavity can be lined with a reflector to assist > in this process.] > > On average, the photon bounces around N = 1 / P times before it escapes > through the slit. > > Hence, the steady-state emission of photons by the phosphor surface is N > times greater than if the photons flew away on their first emission ? as > holds for an ordinary fluorescent lamp. > > The net effect is that the light coming out of the slit is N times > brighter than the light from an ordinary fluorescent bulb of the same > output power. > > The brightness has been enhanced N-fold (with no emittance reduction) to > the extent that the absorption and re-emission involves no losses. > > [I think the lamps in Xerox machines and scanners are of this type.] > > I?ve written up a pedagogic note on this: > http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf > > -------------------------------------- > This trick seems different from what we do to enhance the brightness of > particle beams. > > However, a comment by Fred Mills, dated 9/98, near the bottom of my web > page > http://puhep1.princeton.edu/~mcdonald/mumu/physics/ > has me wondering if part of the effect of the ?Piccione lip? seen on p. > 4 of > > http://puhep1.princeton.edu/~mcdonald/mumu/physics/lichtenberg_mura-110.pdf > > was to use multiple scattering in the ?lip? to kick some particles into > a desired area of phase space. > > That is, perhaps we can say that ionization cooling also includes a > small effect equivalent to the opticians? trick of ?light recycling?. > > What do you think? > > --Kirk > > PS The opticians are after big game = use of such tricks to make better > solar energy concentrators for photovoltaic energy generation (or even just > heating water). > > In the past, such efforts have not involved brightness enhancement, but > only clever rearrangement of light in phase space (as in Winston cones). > > The next generation of brightness enhancement schemes uses materials > with differing absorption and emission spectra to play additional > ?tricks?. New engineered optical materials, called photonic band gap > materials, could play a key role here. > > If these solar brightness-enhancement schemes pay off, they will be able > to fund all of high energy physics.... > > _______________________________________________ > MAP-l mailing list > MAP-l at lists.bnl.gov > https://lists.bnl.gov/mailman/listinfo/map-l > > -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121220/0b0eadf1/attachment.html From tjrob at muonsinc.com Thu Dec 20 15:00:01 2012 From: tjrob at muonsinc.com (Tom Roberts) Date: Thu, 20 Dec 2012 14:00:01 -0600 Subject: [MAP] Light recycling; Piccione lip In-Reply-To: References: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> Message-ID: <50D36E41.6070003@muonsinc.com> For the example with light, it's not even a reduction in transverse emittance, and is an increase in the longitudinal emittance (as Chuck said, if the source is continuous then you don't care about the increase in longitudinal emittance). After all, there are theorems on this. Consider a cavity with an infinitely thin wall and an initially isotropic distribution of light inside it. Then the angular spread of the light coming out of the aperture is 2pi steradians. That, of course, is the same angular spread of an isotropic source considered as a beam headed in a definite direction. There are geometrical factors that could affect the distribution of light within the 2pi sr, based on the shape of the cavity and aperture, the response of the phosphor, etc.; I suspect they either cancel out or increase the emittance of the output beam. Thick absorptive walls will reduce the emittance by scraping (cannot get angles close to 90 degrees), thick walls that are perfectly reflective don't reduce the emittance at all (can still get up to 90 degrees). Also, I don't see how to apply this to muons -- there is no such "phosphor" or "mirror" for them. Tom Roberts On 12/20/12 12/20/12 - 11:51 AM, Andrew Sessler wrote: > Thursday > Dear Kirk, > > I think I would say it differently and I would appreciate your comment: "Wrong!, > Okay, Partially." > > The photon number doesn't increase at each reflection, so the only effect is > that the photon is bounced back and forth until it hits the hole and gets out. > So, the effect is simply reducing the emittance from 4 pi (the whole sphere) to > the area of the hole. Even simple to calculate the amplification. So, my view is > not a re-using of photons, but a change in desired emittance. > > Andy > > > On Wed, Dec 19, 2012 at 8:36 PM, Kirk T McDonald > wrote: > > Folks, > I have become fortuitously aware of an old trick in the lamp industry that > is now sometimes called ?light recycling? ? with the goal of enhancing the > optical brightness of light sources. > Remember, brightness = power / area in transverse phase space > (although the opticians don?t generally say it this way, perhaps using the > buzzword ?etendue? instead of ?area in transverse phase space?) > In our project, we try to increase the brightness by ?cooling?/shrinking the > area in transverse phase space. > The opticians? trick is to ?recycle? the light so that one photon gets > counted many times in the same area in phase space, effectively increasing > the power, while leave the emittance the same. > The historical way of doing this (dating back at least to 1936) involves a > cylindrical cavity lined with a phosphor (i.e., a fluorescent lamp) with a > small slit in the phosphor to let light out. > A photon has only a small probability P to escape out the slit directly > after being emitted by the phosphor. > Generally, the photon hits another region of the phosphor, is absorbed, and > then re-emitted. [The cavity can be lined with a reflector to assist in > this process.] > On average, the photon bounces around N = 1 / P times before it escapes > through the slit. > Hence, the steady-state emission of photons by the phosphor surface is N > times greater than if the photons flew away on their first emission ? as > holds for an ordinary fluorescent lamp. > The net effect is that the light coming out of the slit is N times brighter > than the light from an ordinary fluorescent bulb of the same output power. > The brightness has been enhanced N-fold (with no emittance reduction) to the > extent that the absorption and re-emission involves no losses. > [I think the lamps in Xerox machines and scanners are of this type.] > I?ve written up a pedagogic note on this: > http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf > -------------------------------------- > This trick seems different from what we do to enhance the brightness of > particle beams. > However, a comment by Fred Mills, dated 9/98, near the bottom of my web page > http://puhep1.princeton.edu/~mcdonald/mumu/physics/ > has me wondering if part of the effect of the ?Piccione lip? seen on p. 4 of > http://puhep1.princeton.edu/~mcdonald/mumu/physics/lichtenberg_mura-110.pdf > was to use multiple scattering in the ?lip? to kick some particles into a > desired area of phase space. > That is, perhaps we can say that ionization cooling also includes a small > effect equivalent to the opticians? trick of ?light recycling?. > What do you think? > --Kirk > PS The opticians are after big game = use of such tricks to make better > solar energy concentrators for photovoltaic energy generation (or even just > heating water). > In the past, such efforts have not involved brightness enhancement, but only > clever rearrangement of light in phase space (as in Winston cones). > The next generation of brightness enhancement schemes uses materials with > differing absorption and emission spectra to play additional ?tricks?. New > engineered optical materials, called photonic band gap materials, could play > a key role here. > If these solar brightness-enhancement schemes pay off, they will be able to > fund all of high energy physics.... > > _______________________________________________ > MAP-l mailing list > MAP-l at lists.bnl.gov > https://lists.bnl.gov/mailman/listinfo/map-l > > > > > _______________________________________________ > MAP-l mailing list > MAP-l at lists.bnl.gov > https://lists.bnl.gov/mailman/listinfo/map-l > From tjrob at muonsinc.com Thu Dec 20 16:49:00 2012 From: tjrob at muonsinc.com (Tom Roberts) Date: Thu, 20 Dec 2012 15:49:00 -0600 Subject: [MAP] G4beamline 2.14 released Message-ID: <50D387CC.6080209@muonsinc.com> G4beamline 2.14 has just been released, and is available for download at: http://g4beamline.muonsinc.com Major Changes from 2.12: * MPI works on both Mac OS X and on hopper.nersc.gov (Linux) (see below) * '#' now comments to end-of-line after command text * -O3 added to compilation (can be over-ridden in configure) * Geometrical voxels are used to speed up the EM field computation This _greatly_ speeds up simulating large systems. * New command ?emfactor? to modify ionization energy loss and multiple scattering * g4bldata and G4blData.java revised to permit user setting Geant4Data directory. Complete code revision for downloading data. For MAP, it has been installed on hopper.nersc.gov, with MPI enabled. If your shell is bash, ksh, or sh, do: source /project/projectdirs/map/Codes/G4beamline-2.14/bin/g4bl-setup.sh If your shell is csh or tcsh, do: source /project/projectdirs/map/Codes/G4beamline-2.14/bin/g4bl-setup.csh Please read section 8.5 of the Users Guide before attempting to use MPI (which is the whole point of using Hopper, of course). It is available here: http://muonsinc.com/g4beamline/G4beamlineUsersGuide.pdf There are two examples using MPI in /project/projectdirs/map/Users/tjrob/Benchmark Tom Roberts From diktys at bnl.gov Thu Dec 20 16:49:33 2012 From: diktys at bnl.gov (Diktys Stratakis) Date: Thu, 20 Dec 2012 23:49:33 +0200 Subject: [MAP] No MAP Meeting Tomorrow Message-ID: Dear All, We will not have a MAP meeting tomorrow. Our next meeting will be on Friday, January 11, 2013. Wishing you all a Happy Holiday and a Happy New Year, Regards, Diktys -- Diktys Stratakis, Ph. D. Assistant Physicist Department of Physics Brookhaven National Laboratory P.O. Box 5000 Upton, NY 11973 Web: https://pubweb.bnl.gov/~diktys/ -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121220/7a852e43/attachment.html From mapalmer at fnal.gov Thu Dec 20 19:26:24 2012 From: mapalmer at fnal.gov (Mark A Palmer) Date: Fri, 21 Dec 2012 00:26:24 +0000 Subject: [MAP] G4beamline 2.14 released In-Reply-To: <50D387CC.6080209@muonsinc.com> References: <50D387CC.6080209@muonsinc.com> Message-ID: Hi Tom, Many thanks for completing this update and getting things operational on NERSC! Happy Holidays, Mark Sent from my iPhone On Dec 20, 2012, at 15:49, "Tom Roberts" wrote: > G4beamline 2.14 has just been released, and is available for download at: > http://g4beamline.muonsinc.com > > Major Changes from 2.12: > * MPI works on both Mac OS X and on hopper.nersc.gov (Linux) > (see below) > * '#' now comments to end-of-line after command text > * -O3 added to compilation (can be over-ridden in configure) > * Geometrical voxels are used to speed up the EM field computation > This _greatly_ speeds up simulating large systems. > * New command ?emfactor? to modify ionization energy loss and multiple > scattering > * g4bldata and G4blData.java revised to permit user setting Geant4Data > directory. Complete code revision for downloading data. > > For MAP, it has been installed on hopper.nersc.gov, with MPI enabled. > If your shell is bash, ksh, or sh, do: > source /project/projectdirs/map/Codes/G4beamline-2.14/bin/g4bl-setup.sh > If your shell is csh or tcsh, do: > source /project/projectdirs/map/Codes/G4beamline-2.14/bin/g4bl-setup.csh > > Please read section 8.5 of the Users Guide before attempting to use MPI (which > is the whole point of using Hopper, of course). It is available here: > http://muonsinc.com/g4beamline/G4beamlineUsersGuide.pdf > > There are two examples using MPI in > /project/projectdirs/map/Users/tjrob/Benchmark > > > Tom Roberts > > _______________________________________________ > MAP-l mailing list > MAP-l at lists.bnl.gov > https://lists.bnl.gov/mailman/listinfo/map-l From kirkmcd at Princeton.EDU Thu Dec 20 19:40:21 2012 From: kirkmcd at Princeton.EDU (Kirk T McDonald) Date: Thu, 20 Dec 2012 19:40:21 -0500 Subject: [MAP] Light recycling; Piccione lip In-Reply-To: References: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> Message-ID: Andy, If the phosphor simply absorbed the photons that hit it, and did not re-emit them, the brightness of the hole would be the same as the brightness of the phosphor surface ? even though the emittance of the hole is much smaller than the total emittance of the phosphor surface. [This is the usual version of the brightness theorem.] --------------------------------------------- What is special about the aperture lamp is the the photons that do not immediately go out the hole are not wasted, but eventually get out ? and into the same transverse phase space as the photons that got out on the first try. In this case, more photons/sec emerge from the hole than we expected from a more ordinary lamp. And, the brightness is thereby increased. ------------------------------ When multiple bunches are injected into a storage ring, we don?t succeed in putting them into the same region of phase space. Rather, they are put into adjacent regions (phase-space painting). This increases the number of particles in the circulating bunch, but the brightness of that bunch is not increased. Whereas, the the aperture lamp, a photon goes into the same region of phase space not matter how many tries it takes to get there. --Kirk PS Your comments have sharpened my thinking about this interesting process. As a result, I?ve updated my note, with new footnotes 6, 9 and 25. http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf Thanks for prompting me in this way. From: Andrew Sessler Sent: Thursday, December 20, 2012 12:51 PM To: Kirk T McDonald Cc: MAP-l at lists.bnl.gov Subject: Re: [MAP] Light recycling; Piccione lip Thursday Dear Kirk, I think I would say it differently and I would appreciate your comment: "Wrong!, Okay, Partially." The photon number doesn't increase at each reflection, so the only effect is that the photon is bounced back and forth until it hits the hole and gets out. So, the effect is simply reducing the emittance from 4 pi (the whole sphere) to the area of the hole. Even simple to calculate the amplification. So, my view is not a re-using of photons, but a change in desired emittance. Andy On Wed, Dec 19, 2012 at 8:36 PM, Kirk T McDonald wrote: Folks, I have become fortuitously aware of an old trick in the lamp industry that is now sometimes called ?light recycling? ? with the goal of enhancing the optical brightness of light sources. Remember, brightness = power / area in transverse phase space (although the opticians don?t generally say it this way, perhaps using the buzzword ?etendue? instead of ?area in transverse phase space?) In our project, we try to increase the brightness by ?cooling?/shrinking the area in transverse phase space. The opticians? trick is to ?recycle? the light so that one photon gets counted many times in the same area in phase space, effectively increasing the power, while leave the emittance the same. The historical way of doing this (dating back at least to 1936) involves a cylindrical cavity lined with a phosphor (i.e., a fluorescent lamp) with a small slit in the phosphor to let light out. A photon has only a small probability P to escape out the slit directly after being emitted by the phosphor. Generally, the photon hits another region of the phosphor, is absorbed, and then re-emitted. [The cavity can be lined with a reflector to assist in this process.] On average, the photon bounces around N = 1 / P times before it escapes through the slit. Hence, the steady-state emission of photons by the phosphor surface is N times greater than if the photons flew away on their first emission ? as holds for an ordinary fluorescent lamp. The net effect is that the light coming out of the slit is N times brighter than the light from an ordinary fluorescent bulb of the same output power. The brightness has been enhanced N-fold (with no emittance reduction) to the extent that the absorption and re-emission involves no losses. [I think the lamps in Xerox machines and scanners are of this type.] I?ve written up a pedagogic note on this: http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf -------------------------------------- This trick seems different from what we do to enhance the brightness of particle beams. However, a comment by Fred Mills, dated 9/98, near the bottom of my web page http://puhep1.princeton.edu/~mcdonald/mumu/physics/ has me wondering if part of the effect of the ?Piccione lip? seen on p. 4 of http://puhep1.princeton.edu/~mcdonald/mumu/physics/lichtenberg_mura-110.pdf was to use multiple scattering in the ?lip? to kick some particles into a desired area of phase space. That is, perhaps we can say that ionization cooling also includes a small effect equivalent to the opticians? trick of ?light recycling?. What do you think? --Kirk PS The opticians are after big game = use of such tricks to make better solar energy concentrators for photovoltaic energy generation (or even just heating water). In the past, such efforts have not involved brightness enhancement, but only clever rearrangement of light in phase space (as in Winston cones). The next generation of brightness enhancement schemes uses materials with differing absorption and emission spectra to play additional ?tricks?. New engineered optical materials, called photonic band gap materials, could play a key role here. If these solar brightness-enhancement schemes pay off, they will be able to fund all of high energy physics.... _______________________________________________ MAP-l mailing list MAP-l at lists.bnl.gov https://lists.bnl.gov/mailman/listinfo/map-l -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121220/a1e7ab8c/attachment-0001.html From kirkmcd at Princeton.EDU Thu Dec 20 20:00:44 2012 From: kirkmcd at Princeton.EDU (Kirk T McDonald) Date: Thu, 20 Dec 2012 20:00:44 -0500 Subject: [MAP] Light recycling; Piccione lip In-Reply-To: <50D36E41.6070003@muonsinc.com> References: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> <50D36E41.6070003@muonsinc.com> Message-ID: <95AA3469D208455AA9FE5F2B6C511AC2@mumu32> Tom, In the case of the aperture lamp, I agree that there is no reduction in transverse phase space of photons that pass thru the aperture from the time they are last emitted by the phosphor to the time the are received on some distant screen. For a continuous, monochromatic light source, dE = 0 , while dt = infinity, so there really is not meaning to longitudinal phase space. It doesn't seem useful to say things like "the bouncing of the light increases its longitudinal phase space. If the average time for the bounces is 1 nsec, and I run the lamp for 1 hour, it isn't useful to say that the dt increased by 1 nsec compared to the 3600 sec. As to the "theorems" (such as Liouville's theorem and the brightness theorem), be careful. These apply only to Hamiltonian systems. Diffuse reflection is not a Hamiltonian process. Usually we associate diffuse reflection with some kind of "loss", but the aperture lamp shows that this is a misconception. ---------------------- Could any of this apply to muons? I think Chuck is correct that his scheme is a kind of implementation of the concepts behind "light recycling". It will be interesting to see if he can make them work.... --Kirk -----Original Message----- From: Tom Roberts Sent: Thursday, December 20, 2012 3:00 PM To: Andrew Sessler Cc: Kirk T McDonald ; MAP-l at lists.bnl.gov Subject: Re: [MAP] Light recycling; Piccione lip For the example with light, it's not even a reduction in transverse emittance, and is an increase in the longitudinal emittance (as Chuck said, if the source is continuous then you don't care about the increase in longitudinal emittance). After all, there are theorems on this. Consider a cavity with an infinitely thin wall and an initially isotropic distribution of light inside it. Then the angular spread of the light coming out of the aperture is 2pi steradians. That, of course, is the same angular spread of an isotropic source considered as a beam headed in a definite direction. There are geometrical factors that could affect the distribution of light within the 2pi sr, based on the shape of the cavity and aperture, the response of the phosphor, etc.; I suspect they either cancel out or increase the emittance of the output beam. Thick absorptive walls will reduce the emittance by scraping (cannot get angles close to 90 degrees), thick walls that are perfectly reflective don't reduce the emittance at all (can still get up to 90 degrees). Also, I don't see how to apply this to muons -- there is no such "phosphor" or "mirror" for them. Tom Roberts On 12/20/12 12/20/12 - 11:51 AM, Andrew Sessler wrote: > Thursday > Dear Kirk, > > I think I would say it differently and I would appreciate your comment: > "Wrong!, > Okay, Partially." > > The photon number doesn't increase at each reflection, so the only effect > is > that the photon is bounced back and forth until it hits the hole and gets > out. > So, the effect is simply reducing the emittance from 4 pi (the whole > sphere) to > the area of the hole. Even simple to calculate the amplification. So, my > view is > not a re-using of photons, but a change in desired emittance. > > Andy > > > On Wed, Dec 19, 2012 at 8:36 PM, Kirk T McDonald > wrote: > > Folks, > I have become fortuitously aware of an old trick in the lamp industry > that > is now sometimes called ?light recycling? ? with the goal of enhancing > the > optical brightness of light sources. > Remember, brightness = power / area in transverse phase space > (although the opticians don?t generally say it this way, perhaps using > the > buzzword ?etendue? instead of ?area in transverse phase space?) > In our project, we try to increase the brightness by ?cooling?/shrinking > the > area in transverse phase space. > The opticians? trick is to ?recycle? the light so that one photon gets > counted many times in the same area in phase space, effectively > increasing > the power, while leave the emittance the same. > The historical way of doing this (dating back at least to 1936) > involves a > cylindrical cavity lined with a phosphor (i.e., a fluorescent lamp) > with a > small slit in the phosphor to let light out. > A photon has only a small probability P to escape out the slit > directly > after being emitted by the phosphor. > Generally, the photon hits another region of the phosphor, is > absorbed, and > then re-emitted. [The cavity can be lined with a reflector to assist > in > this process.] > On average, the photon bounces around N = 1 / P times before it > escapes > through the slit. > Hence, the steady-state emission of photons by the phosphor surface is > N > times greater than if the photons flew away on their first emission ? > as > holds for an ordinary fluorescent lamp. > The net effect is that the light coming out of the slit is N times > brighter > than the light from an ordinary fluorescent bulb of the same output > power. > The brightness has been enhanced N-fold (with no emittance reduction) > to the > extent that the absorption and re-emission involves no losses. > [I think the lamps in Xerox machines and scanners are of this type.] > I?ve written up a pedagogic note on this: > http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf > -------------------------------------- > This trick seems different from what we do to enhance the brightness > of > particle beams. > However, a comment by Fred Mills, dated 9/98, near the bottom of my > web page > http://puhep1.princeton.edu/~mcdonald/mumu/physics/ > has me wondering if part of the effect of the ?Piccione lip? seen on > p. 4 of > > http://puhep1.princeton.edu/~mcdonald/mumu/physics/lichtenberg_mura-110.pdf > was to use multiple scattering in the ?lip? to kick some particles > into a > desired area of phase space. > That is, perhaps we can say that ionization cooling also includes a > small > effect equivalent to the opticians? trick of ?light recycling?. > What do you think? > --Kirk > PS The opticians are after big game = use of such tricks to make > better > solar energy concentrators for photovoltaic energy generation (or even > just > heating water). > In the past, such efforts have not involved brightness enhancement, > but only > clever rearrangement of light in phase space (as in Winston cones). > The next generation of brightness enhancement schemes uses materials > with > differing absorption and emission spectra to play additional ?tricks?. > New > engineered optical materials, called photonic band gap materials, > could play > a key role here. > If these solar brightness-enhancement schemes pay off, they will be > able to > fund all of high energy physics.... > > _______________________________________________ > MAP-l mailing list > MAP-l at lists.bnl.gov > https://lists.bnl.gov/mailman/listinfo/map-l > > > > > _______________________________________________ > MAP-l mailing list > MAP-l at lists.bnl.gov > https://lists.bnl.gov/mailman/listinfo/map-l > From val at fnal.gov Fri Dec 21 12:26:03 2012 From: val at fnal.gov (Valeri A Lebedev) Date: Fri, 21 Dec 2012 17:26:03 +0000 Subject: [MAP] Light recycling; Piccione lip In-Reply-To: References: <6E155B384834D647B7FE28DCAFD3E367037884CA@MAIL01.fnal.gov> Message-ID: <8340E991410FC14094E26AA9C996AB3C031DBCDA@MAIL02.fnal.gov> Hi to everybody, It has been a lovely discussion. I just would like to note that it is already taken into account. Our muon production is based on the "light recycling". Strong magnetic field and thin target do the same thing. For sufficiently thin target and large magnetic field the phase density of pions is proportional to the magnetic field!!! Is not it the same phenomenon. I do not think there is another trick which we could apply to get even more but I would not exclude it. The nature does not squeeze us to Hamiltonian systems only. Merry Christmas and Happy New Year. Valeri From: map-l-bounces at lists.bnl.gov [mailto:map-l-bounces at lists.bnl.gov] On Behalf Of Kirk T McDonald Sent: Thursday, December 20, 2012 6:40 PM To: Andrew Sessler; Kirk T McDonald Cc: MAP-l at lists.bnl.gov Subject: Re: [MAP] Light recycling; Piccione lip Andy, If the phosphor simply absorbed the photons that hit it, and did not re-emit them, the brightness of the hole would be the same as the brightness of the phosphor surface - even though the emittance of the hole is much smaller than the total emittance of the phosphor surface. [This is the usual version of the brightness theorem.] --------------------------------------------- What is special about the aperture lamp is the the photons that do not immediately go out the hole are not wasted, but eventually get out - and into the same transverse phase space as the photons that got out on the first try. In this case, more photons/sec emerge from the hole than we expected from a more ordinary lamp. And, the brightness is thereby increased. ------------------------------ When multiple bunches are injected into a storage ring, we don't succeed in putting them into the same region of phase space. Rather, they are put into adjacent regions (phase-space painting). This increases the number of particles in the circulating bunch, but the brightness of that bunch is not increased. Whereas, the the aperture lamp, a photon goes into the same region of phase space not matter how many tries it takes to get there. --Kirk PS Your comments have sharpened my thinking about this interesting process. As a result, I've updated my note, with new footnotes 6, 9 and 25. http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf Thanks for prompting me in this way. From: Andrew Sessler Sent: Thursday, December 20, 2012 12:51 PM To: Kirk T McDonald Cc: MAP-l at lists.bnl.gov Subject: Re: [MAP] Light recycling; Piccione lip Thursday Dear Kirk, I think I would say it differently and I would appreciate your comment: "Wrong!, Okay, Partially." The photon number doesn't increase at each reflection, so the only effect is that the photon is bounced back and forth until it hits the hole and gets out. So, the effect is simply reducing the emittance from 4 pi (the whole sphere) to the area of the hole. Even simple to calculate the amplification. So, my view is not a re-using of photons, but a change in desired emittance. Andy On Wed, Dec 19, 2012 at 8:36 PM, Kirk T McDonald > wrote: Folks, I have become fortuitously aware of an old trick in the lamp industry that is now sometimes called "light recycling" - with the goal of enhancing the optical brightness of light sources. Remember, brightness = power / area in transverse phase space (although the opticians don't generally say it this way, perhaps using the buzzword "etendue" instead of "area in transverse phase space") In our project, we try to increase the brightness by "cooling"/shrinking the area in transverse phase space. The opticians' trick is to "recycle" the light so that one photon gets counted many times in the same area in phase space, effectively increasing the power, while leave the emittance the same. The historical way of doing this (dating back at least to 1936) involves a cylindrical cavity lined with a phosphor (i.e., a fluorescent lamp) with a small slit in the phosphor to let light out. A photon has only a small probability P to escape out the slit directly after being emitted by the phosphor. Generally, the photon hits another region of the phosphor, is absorbed, and then re-emitted. [The cavity can be lined with a reflector to assist in this process.] On average, the photon bounces around N = 1 / P times before it escapes through the slit. Hence, the steady-state emission of photons by the phosphor surface is N times greater than if the photons flew away on their first emission - as holds for an ordinary fluorescent lamp. The net effect is that the light coming out of the slit is N times brighter than the light from an ordinary fluorescent bulb of the same output power. The brightness has been enhanced N-fold (with no emittance reduction) to the extent that the absorption and re-emission involves no losses. [I think the lamps in Xerox machines and scanners are of this type.] I've written up a pedagogic note on this: http://puhep1.princeton.edu/~mcdonald/examples/lamp.pdf -------------------------------------- This trick seems different from what we do to enhance the brightness of particle beams. However, a comment by Fred Mills, dated 9/98, near the bottom of my web page http://puhep1.princeton.edu/~mcdonald/mumu/physics/ has me wondering if part of the effect of the "Piccione lip" seen on p. 4 of http://puhep1.princeton.edu/~mcdonald/mumu/physics/lichtenberg_mura-110.pdf was to use multiple scattering in the "lip" to kick some particles into a desired area of phase space. That is, perhaps we can say that ionization cooling also includes a small effect equivalent to the opticians' trick of "light recycling". What do you think? --Kirk PS The opticians are after big game = use of such tricks to make better solar energy concentrators for photovoltaic energy generation (or even just heating water). In the past, such efforts have not involved brightness enhancement, but only clever rearrangement of light in phase space (as in Winston cones). The next generation of brightness enhancement schemes uses materials with differing absorption and emission spectra to play additional "tricks". New engineered optical materials, called photonic band gap materials, could play a key role here. If these solar brightness-enhancement schemes pay off, they will be able to fund all of high energy physics.... _______________________________________________ MAP-l mailing list MAP-l at lists.bnl.gov https://lists.bnl.gov/mailman/listinfo/map-l -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121221/c712f0ff/attachment-0001.html From maury.goodman at anl.gov Fri Dec 21 17:01:37 2012 From: maury.goodman at anl.gov (Maury Goodman) Date: Fri, 21 Dec 2012 16:01:37 -0600 Subject: [MAP] Additions to the Neutrino Jobs Page through 21 December 2012 In-Reply-To: <50B53FCD.90008@anl.gov> References: <4BF732E4.4040606@anl.gov> <4C28CEEB.7010004@anl.gov> <4C3C9556.3000105@anl.gov> <4C58745A.7030808@anl.gov> <4C7C38C8.2090301@anl.gov> <4C92A1ED.6040502@anl.gov> <4CAF8DB8.1090006@anl.gov> <4CDC4A6E.6060905@anl.gov> <4D34A7DC.8040806@anl.gov> <4D6D60B5.2070506@anl.gov> <4DAA0299.1020206@anl.gov> <4DE501BD.3070900@anl.gov> <4DFA220B.5040404@anl.gov> <4E299E49.80707@anl.gov> <4E4EBEB3.6040806@anl.gov> <4E615435.1090707@anl.gov> <4E8CBC5A.4070203@anl.gov> <4EB2ABEA.6010509@anl.gov> <4ECD4A9E.8010408@anl.gov> <4F5F5DB1.8040902@anl.gov> <4FB58A50.5070401@anl.gov> <5009C369.6080908@anl.gov> <50477174.2030904@anl.gov> <506B14A4.5030308@anl.gov> <50B53FCD.90008@anl.gov> Message-ID: <50D4DC41.1000103@anl.gov> To: IceCube; NOvA; MINOS; Double Chooz; LBNE; Minerva; Boone; Majorana INO & MAP Collaborations Additions to the Neutrino Jobs Page through 21 December 2012 Postdoc on T2K/Super-K at Boston University http://www.hep.anl.gov/ndk/jobs/jobs.htm#boston12 Postdoctoral Position on DEAP at Queens University http://www.hep.anl.gov/ndk/jobs/jobs.htm#queens12 Lectureship in Experimental Particle Physics at Queen Mary University of London http://www.hep.anl.gov/ndk/jobs/jobs.htm#queenmary12 Staff Accelerator Physicist position at Daresbury Lab http://www.hep.anl.gov/ndk/jobs/jobs.htm#daresbury12 "Director's" postdoctoral positions in high energy physics, http://www.hep.anl.gov/ndk/jobs/jobs.htm#anldirector Ph.D. physicists to work on scientific computing on the Intensity Frontier at Fermilab http://www.hep.anl.gov/ndk/jobs/jobs.htm#fermilab12c Postdoc on T2K at Oxford University http://www.hep.anl.gov/ndk/jobs/jobs.htm#oxford12b Postdoc on MINERvA and MicroBooNE at the University of Chicago http://www.hep.anl.gov/ndk/jobs/jobs.htm#chicago12 -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20121221/d6351b76/attachment.html From mokhov at fnal.gov Wed Dec 26 22:12:37 2012 From: mokhov at fnal.gov (Nikolai Mokhov) Date: Thu, 27 Dec 2012 03:12:37 +0000 Subject: [MAP] MARS15(2012) on BNL computers Message-ID: <4A0FC7D34EAE8646AA5CB98B08870DAE033043E5@MAIL02.fnal.gov> Hi all, I have successfully installed and tested the newest MARS15(2012) of December 2012 on BNL's cluster/spot in /home3/nmokhov/restricted/mars15 and rlnxsp01 in /u0b/mokhov/restricted/mars15 The only new feature I could not check on both the clusters is the ROOT geometry, because I couldn't find the required ROOT version 5.32 or 5.34 installed there. Let me know once it is there and I will add this powerful feature. I have checked all other new modules including EGS5 and ENDF/B. 1. Update your .bashrc in accordance with that in my home directory (MARS, EGS and ENDF/B parts; we would need to define there corresponding ROOT variables once the ROOT is in place). 2 . Copy to your area GNUmakefile, *INP*, m1512.f, marsmain.f and xsdir files as well as the auxiliary directory. The latter contains the newest manual, tutorials, other documentation along with three "How-to" subdirectories on: nuclide inventory; preparation, submission and averaging results of multiple jobs; and rather generic .bashrc example. As always, to reproduce a sample problem of that in my directory just say make time ./rmars-bnab-linux & for a basic mode or make rmars-mcnp-linux time ./rmars-mcnp-linux & for a mode with ENDF/B x-sections for neutrons below 14 MeV To activate the ROOT or/and EGS5 modules, uncomment corresponding lines at the beginning of GNUmakefile. Good luck! Nikolai -----Original Message----- From: Harold Kirk [mailto:hkirk at bnl.gov] Sent: Friday, December 21, 2012 9:16 AM To: Nikolai Mokhov Subject: FW: Checking mars15 Nikolai, We have had a significant upgrade of the BNL ITD cluster software. As you can see below, this has resulted in a complete cessation of operations for the MARS efforts on this machine. It appears that the best solution is for you to rebuild. Please look into this a soon a practical as we are currently dead in the water with our MARS simulations work. Thanks. Harold G. Kirk e-mail: hkirk at bnl.gov Dept. of Physics, 901A Voice: (631) 344-3780 Brookhaven National Lab Fax: (631) 344-3248 Upton, NY 11973-5000 http://pubweb.bnl.gov/people/kirk -----Original Message----- From: Ding, Xiaoping [mailto:xding at bnl.gov] Sent: Friday, December 21, 2012 9:47 AM To: Berg, J Scott; Harold Kirk; Kamal Sayed Abdalgaffar, Hisham Subject: RE: Checking mars15 Hi Harold, Could you please send an request to Mokhov to rebuild his mars15 on BNL new system? Thanks, Xiaoping ________________________________________ From: Berg, J Scott Sent: Wednesday, December 19, 2012 9:28 AM To: Harold Kirk; Ding, Xiaoping; Kamal Sayed Abdalgaffar, Hisham Subject: Checking mars15 First of all, mars15 was built with the gcc/gfortran 4.1 compilers, whereas the new system has the gcc/gfortran 4.4 compilers. There is a fortran library compatability issue which prevents a successful link of the new library. One could have ITD install the gfortran 4.1 compatability library, but this has a good chance of creating problems due to linking against two fortran libraries which may or may not get along well. There's also another problem with missing libraries in Nikolai's tk version, but that is fixable by either installing the missing library or just using the system tk library. I think Mokhov really needs to rebuild on the new system. One temporary workaround is to install a Scientific Linux 5 VM on your desktop/laptop, and build your executables there. Three of the mcnp datasets seem to be inaccessible: uresa and xsdir. Intentionally or not, read access for "others" has been removed. These sets are not in Mokhov's directory; he just has a link to the actual location, which is a user kinyip. -Scott From kinyip at bnl.gov Wed Dec 26 22:44:58 2012 From: kinyip at bnl.gov (Yip, Kin) Date: Thu, 27 Dec 2012 03:44:58 +0000 Subject: [MAP] MARS15(2012) on BNL computers In-Reply-To: <4A0FC7D34EAE8646AA5CB98B08870DAE033043E5@MAIL02.fnal.gov> References: <4A0FC7D34EAE8646AA5CB98B08870DAE033043E5@MAIL02.fnal.gov> Message-ID: Hi Nikolai, rlnxsp01/2 has AFS. Eg. if I do the following : setenv ROOTSYS /afs/rhic.bnl.gov/star/ROOT/5.34.03/.sl53_x8664_gcc432/rootdeb setenv LD_LIBRARY_PATH /afs/rhic.bnl.gov/star/ROOT/5.34.03/.sl53_x8664_gcc432/rootdeb/lib:$LD_LIBRARY_PATH root.exe would work. Do you think you may use this in rlnxsp machines ? For ROOT in cluster/spot, we have to install or ask to install ... Kin > -----Original Message----- > From: Nikolai Mokhov [mailto:mokhov at fnal.gov] > Sent: Wednesday, December 26, 2012 10:13 PM > To: Harold Kirk; Ding, Xiaoping; Yip, Kin > Cc: MAP-l at lists.bnl.gov > Subject: MARS15(2012) on BNL computers > > Hi all, > > I have successfully installed and tested the newest MARS15(2012) of December 2012 on > BNL's > cluster/spot in /home3/nmokhov/restricted/mars15 > and rlnxsp01 in /u0b/mokhov/restricted/mars15 > > The only new feature I could not check on both the clusters is the ROOT geometry, > because I couldn't find the required ROOT version 5.32 or 5.34 installed there. Let me > know once it is there and I will add this powerful feature. > > I have checked all other new modules including EGS5 and ENDF/B. > > 1. Update your .bashrc in accordance with that in my home directory (MARS, EGS and > ENDF/B parts; we would need to define there corresponding ROOT variables once the > ROOT is in place). > > 2 . Copy to your area GNUmakefile, *INP*, m1512.f, marsmain.f and xsdir files as well > as the auxiliary directory. The latter contains the newest manual, tutorials, other > documentation along with three "How-to" subdirectories on: nuclide inventory; preparation, > submission and averaging results of multiple jobs; and rather generic .bashrc example. > > As always, to reproduce a sample problem of that in my directory just say > > make > time ./rmars-bnab-linux & for a basic mode > > or > > make rmars-mcnp-linux > > time ./rmars-mcnp-linux & for a mode with ENDF/B x-sections for neutrons > below 14 MeV > > To activate the ROOT or/and EGS5 modules, uncomment corresponding lines at the > beginning of GNUmakefile. > > Good luck! > > Nikolai > > > -----Original Message----- > From: Harold Kirk [mailto:hkirk at bnl.gov] > Sent: Friday, December 21, 2012 9:16 AM > To: Nikolai Mokhov > Subject: FW: Checking mars15 > > Nikolai, We have had a significant upgrade of the BNL ITD cluster > software. As you can see below, this has resulted in a complete cessation of operations for > the MARS efforts on this machine. It appears that the best solution is for you to rebuild. > Please look into this a soon a practical as we are currently dead in the water with our > MARS simulations work. Thanks. > > > Harold G. Kirk e-mail: hkirk at bnl.gov > Dept. of Physics, 901A Voice: (631) 344-3780 > Brookhaven National Lab Fax: (631) 344-3248 > Upton, NY 11973-5000 http://pubweb.bnl.gov/people/kirk > > -----Original Message----- > From: Ding, Xiaoping [mailto:xding at bnl.gov] > Sent: Friday, December 21, 2012 9:47 AM > To: Berg, J Scott; Harold Kirk; Kamal Sayed Abdalgaffar, Hisham > Subject: RE: Checking mars15 > > Hi Harold, > > Could you please send an request to Mokhov to rebuild his mars15 on BNL new system? > > Thanks, > > Xiaoping > > ________________________________________ > From: Berg, J Scott > Sent: Wednesday, December 19, 2012 9:28 AM > To: Harold Kirk; Ding, Xiaoping; Kamal Sayed Abdalgaffar, Hisham > Subject: Checking mars15 > > First of all, mars15 was built with the gcc/gfortran 4.1 compilers, whereas the new system > has the gcc/gfortran 4.4 compilers. There is a fortran library compatability issue which > prevents a successful link of the new library. One could have ITD install the gfortran 4.1 > compatability library, but this has a good chance of creating problems due to linking > against two fortran libraries which may or may not get along well. There's also another > problem with missing libraries in Nikolai's tk version, but that is fixable by either installing > the missing library or just using the system tk library. I think Mokhov really needs to > rebuild on the new system. > > One temporary workaround is to install a Scientific Linux 5 VM on your desktop/laptop, > and build your executables there. > > Three of the mcnp datasets seem to be inaccessible: uresa and xsdir. > Intentionally or not, read access for "others" has been removed. These sets are not in > Mokhov's directory; he just has a link to the actual location, which is a user kinyip. > > -Scott >