Here we list various lattices and their parameters.
Apertures (ax and ay) are full apertures. If a magnet is
given a length of zero, its strength is an integrated
strength. All field values and derivatives are about the
closed orbit at the reference energy.
Carol's Reference Lattice
Minimum Energy | 6 GeV |
Reference Energy | 16.3 GeV |
Maximum Energy | 20 GeV |
Cells | 314 |
|
| L (m) | ax (cm) | ay (cm) | B (T) | dB/dx (T/m) | d2B/dx2 (T/m2) |
QF | 0.15 | 22 | 10 | | 75.019 | |
D | 3.0 | | | | | |
QD | 0.35 | 15 | 10 | 1.0879 | -32.152 | |
D | 3.0 | | | | | |
|
Dejan's Reference Lattice
Minimum Energy | 10 GeV |
Reference Energy | 15 GeV |
Maximum Energy | 20 GeV |
Cells | 40 |
|
| L (m) | ax (cm) | ay (cm) | B (T) | dB/dx (T/m) | d2B/dx2 (T/m2) |
SD | 0.019457686 | | | | | -32980.309 |
QD2 | 0.1 | | | | -257.74357 | |
D2 | 1.0021862 | | | | | |
QF | 0.28 | | | | 265.60851 | 3672.7387 |
D3 | 0.67335609 | | | | | |
B | 0.2 | | | 9.8242735 | | |
BD | 0.4 | | | 9.8242735 | -70 | |
B | 0.2 | | | 9.8242735 | | |
D3 | 0.67335609 | | | | | |
QF | 0.28 | | | | 265.60851 | 3672.7387 |
D2 | 1.0021862 | | | | | |
QD2 | 0.1 | | | | -257.74357 | |
SD | 0.019457686 | | | | | -32980.309 |
|
KEK Reference Lattices
Minimum Energy | 10 GeV | 10 GeV |
Maximum Energy | 20 GeV | 20 GeV |
Cells | 180 | 120 |
k | 670 | 330 |
Radius | 200 m | 120 m |
Orbit Excursion | 206 mm | 251 mm |
B max | 5.86 T | 7.73 T |
Beta max (h) | 9.43 | 8.28 |
Beta max (v) | 21.4 | 21.3 |
Max beam size (h) | 106 mm | 100 mm |
Max beam size (v) | 160 mm | 160 mm |
Opening angle (F) | 0.562° | 0.87° |
Opening angle (D) | 0.438° | 0.63° |
Packing factor | 0.5 | 0.5 |
Max B on orbit | 5.86 T | 7.73 T |
Tune (h) | 41.3 | 28.1 |
Tune (v) | 15.7 | 9.38 |
Phase Advance (h) | 82.2° | 84.3° |
Phase Advance (v) | 31.4° | 28.1° |
Revolution Frequency | 0.24 MHz | 0.4 MHz |
RF Voltage (average) | 0.75 MV/m | 0.75 MV/m |
RF Frequency | 24 MHz | 12-18 MHz |
Harmonic Number | 100 | 30-45 |
Turns | 15 | 20-30 |
|
Opening angles in the above table include ends of
30 cm for the 200 m lattice and 20 cm for
the 120 m lattice. Field profiles should be based
on the subsequent tables.
| L (m) | ax (cm) | ay (cm) | B (T) |
QD | 0.93 | | | 5.795 |
D | 2.35 | | | |
QF | 1.36 | | | -3.636 |
D | 2.35 | | | |
|
| L (m) | ax (cm) | ay (cm) | B (T) |
QD | 0.92 | | | 7.738 |
D | 1.97 | | | |
QF | 1.42 | | | -4.857 |
D | 1.97 | | | |
|
|