From diktys at bnl.gov Thu Feb 7 16:47:37 2013 From: diktys at bnl.gov (Diktys Stratakis) Date: Thu, 7 Feb 2013 16:47:37 -0500 Subject: [MAP] MAP Meeting Tomorrow Message-ID: Dear All, There will be a MAP meeting tomorrow February 8th @1pm (FNAL time) *AGENDA* 1. *Computation of eigen-emittances from tracking data * Speaker: Yuri Alexahin (FNAL) https://indico.fnal.gov/conferenceDisplay.py?confId=6403 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: 303-248-028 <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/20130207/89373cdd/attachment.html From diktys at bnl.gov Thu Feb 14 21:51:22 2013 From: diktys at bnl.gov (Diktys Stratakis) Date: Thu, 14 Feb 2013 21:51:22 -0500 Subject: [MAP] MAP Meeting Tomorrow Message-ID: Dear All, There will be a MAP meeting tomorrow February 15th @1pm (FNAL time) *AGENDA* 1. *Complete Muon Cooling Channel Design & Simulations * Speaker: Cary Yoshikawa (Muon Inc.) https://indico.fnal.gov/conferenceDisplay.py?confId=6437 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: 303-248-028 <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/20130214/5e93653f/attachment.html From diktys at bnl.gov Thu Feb 21 14:09:21 2013 From: diktys at bnl.gov (Diktys Stratakis) Date: Thu, 21 Feb 2013 14:09:21 -0500 Subject: [MAP] MAP Meeting Tomorrow Message-ID: Dear All, There will be a MAP meeting tomorrow, February 22nd @1pm (FNAL time). *AGENDA* We will continue our series of monthly meetings where we will review program progress in each of our Level 2 management areas. https://indico.fnal.gov/conferenceDisplay.py?confId=6461 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/20130221/7a0b97a4/attachment.html From alexahin at fnal.gov Fri Feb 22 20:18:26 2013 From: alexahin at fnal.gov (Yuri I Alexahin) Date: Sat, 23 Feb 2013 01:18:26 +0000 Subject: [MAP] paper on eigen-emittances Message-ID: <5F7CFCB0B37FE24A8196C2A5C93C166D03516903@MAIL02.fnal.gov> Hi, I submitted the promised paper on eigen-emittances as MAP-doc-4358 Among others it considers topics which aroused heated discussions in the recent past. Yuri -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20130223/30599540/attachment.html From kirkmcd at Princeton.EDU Sat Feb 23 23:48:39 2013 From: kirkmcd at Princeton.EDU (Kirk T McDonald) Date: Sat, 23 Feb 2013 23:48:39 -0500 Subject: [MAP] paper on eigen-emittances In-Reply-To: <5F7CFCB0B37FE24A8196C2A5C93C166D03516903@MAIL02.fnal.gov> References: <5F7CFCB0B37FE24A8196C2A5C93C166D03516903@MAIL02.fnal.gov> Message-ID: <7FAAA13E0AE0426299A0403ECD46C579@mumu30> Yuri, Thanks, but what in your paper addresses any ?heated discussion? about ?cooling?? It?s not really controversial the Hamiltonian dynamics of charged particles in electromagnetic fields involves canonical momenta rather than simply mechanical momentum. What is possibly controversial is whether one needs to compute the eigenemittances separately (based on canonical momenta, of course), compared to summarizing the results in terms of more familiar 4d and 6d emittances that are square roots of the products of eigenemittances. If your paper sheds light on this issue, please point to where this is done. Didn?t you consider only an example in which epsilon1 ~ epsilon2, so there is little/no loss of information in considering only sqrt(epsilon1 epsilon2). Or, do you argue that the slight difference between epsilon1 and epsilon2 in fig. 7 teaches us something that we would be missing by only considering sqrt(epsilon1 epsilon2)? If so, what? --Kirk From: Yuri I Alexahin Sent: Friday, February 22, 2013 8:18 PM To: MAP-l at lists.bnl.gov Subject: [MAP] paper on eigen-emittances Hi, I submitted the promised paper on eigen-emittances as MAP-doc-4358 Among others it considers topics which aroused heated discussions in the recent past. Yuri -------------------------------------------------------------------------------- _______________________________________________ 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/20130223/28666e77/attachment.html From jsberg at bnl.gov Thu Feb 28 09:56:56 2013 From: jsberg at bnl.gov (Berg, J Scott) Date: Thu, 28 Feb 2013 14:56:56 +0000 Subject: [MAP] ICOOL SOL model 1 Message-ID: <497D8B45D8A3C6448A287A4D1ABC7D10144D2054@EX10-MB3.bnl.gov> Hello ICOOL users, If you do not have ICOOL input files that use SOL model 1, feel free to ignore this message. I want to make a change to SOL model 1, which should be backward compatible with the documented behavior, but I want to try to avoid creating problems for existing input files. First I'll go through the existing behavior, the describe what I propose to change. SOL model 1 has had two incarnations: ICOOL Version < 3.23: 2 : B0 3 : CLEN 4 : ELEN1 5 : BOFF 6 : ELEN2 z < ELEN1 : Bz = BOFF + z*B0/ELEN1 ELEN1 <= z <= ELEN1+CLEN : Bz = BOFF + B0 ELEN1+CLEN < z : Bz = BOFF + B0*(ELEN1+CLEN-z)/ELEN2 if ELEN2=0, then the latter is replaced with ELEN1+CLEN < z : Bz = BOFF + B0 If ELEN1=0 or ELEN2=0, there was no corresponding hard-edge kick added. A documented way of getting a constant field in the entire sregion was to set B0=0 and BOFF to the desired field value. ICOOL Version >= 3.23: 2 : B0 3 : CLEN 4 : ELEN1 5 : B1 6 : ELEN2 7 : B2 z < ELEN1 : Bz = (ELEN1-z)*B1/ELEN1 + z*B0/ELEN1 ELEN1 <= z <= ELEN1+CLEN : Bz = B0 ELEN1+CLEN < z : Bz = (ELEN2+CLEN+ELEN1-z)*B0/ELEN2 + (z-ELEN1-CLEN)*B2/ELEN2 In other words, the field increased linearly from B1 to B0 in going from from z=0 to z=ELEN; was constant at B0 until z=ELEN1+CLEN; then changed linearly beyond z=ELEN1+CLEN, starting at B0 and reaching B2 at z=ELEN1+CLEN+ELEN2 but continuing to change linearly beyond that. if ELEN2=0, then the last equation is replaced with ELEN1+CLEN < z : Bz = B0 If ELEN1=0 or ELEN2=0, there was no corresponding hard-edge kick added. ======= There is still some potentially unexpected behavior that can occur when ELEN1=0 (roundoff-related) or ELEN2=0 (note the different behavior described above). Furthermore, if the length of the sregion is greater than CLEN+ELEN1+ELEN2, the field continue to fall below B2 for larger z. So I have which should be compatible with the documented behavior of the recent versions of ICOOL: add an eighth parameter, Zoff. Then z <= Zoff : Bz = B1 Zoff < z < Zoff+ELEN1 : Bz = (Zoff+ELEN1-z)*B1/ELEN1 + (z-Zoff)*B0/ELEN1 Zoff+ELEN1 <= z <= Zoff+ELEN1+CLEN : Bz = B0 Zoff+ELEN1+CLEN < z < Zoff+ELEN1+CLEN+ELEN2 : Bz = (Zoff+ELEN1+ELEN2+CLEN-z)*B0/ELEN2 + (z-Zoff-ELEN1-CLEN)*B2/ELEN2 Zoff+ELEN1+CLEN+ELEN2 <= z : Bz = B2 The change is that there are 5 regions: the first region with B1, then a second region which changes linearly from B1 to B0, a third region with B0, a fourth region changing linearly to B2, then a fifth region staying constant at B2. There are still no hard edge kicks of ELEN1 or ELEN2 are zero. This should be backward compatible assuming that A) your input file had set parameter 8 (unused before) to zero, and B) you had not relied on the field continuing linearly past B2 when z > ELEN1+CLEN+ELEN2. Please let me know if this change would cause problems for you. Thanks, -Scott From diktys at bnl.gov Thu Feb 28 15:38:38 2013 From: diktys at bnl.gov (Diktys Stratakis) Date: Thu, 28 Feb 2013 15:38:38 -0500 Subject: [MAP] MAP Meeting Tomorrow Message-ID: Dear All, There will be a MAP meeting tomorrow March 1st @1pm (FNAL time) *AGENDA* 1. *Magnetic Measurements of MICE Spectrometer Solenoid 2 * Speaker: Marc Buehler* *(Fermilab) https://indico.fnal.gov/conferenceDisplay.py?confId=6514 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: 303-248-028 <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/20130228/eb27571f/attachment.html