LOGO CEPC Partial Double Ring Lattice Design and
LOGO CEPC Partial Double Ring Lattice Design and DA Study SU Feng GAO Jie WANG Dou WANG Yiwei Li Yongjun BIAN Tianjinan BAI Sha DUAN Zhe GENG Huiping ZHANG Yuan XU Gang XIAO Ming Key Laboratory of Particle Acceleration Physics and Technology Institute of High Energy Physics Chinese Academy of Sciences 2016. 6. 3
Out line 1. Redesign PDR Lattice by SAD and DA study 2. Change Pylatt ( Li Yongjun code) more faster 3. CEPC APDR (Advanced Partial Double Ring) Layout 4. Next
PDR Lattice Redesign by SAD and DA study Feng Su,Yiwei Wang 2016. 5. 26
CEPC PDR 1. 0. 2 no. FFS 10 5 0 0 -5 -10 500 1000 1500 2000 2500 3000
CEPC PDR 1. 0. 2 no. FFS I 5 L
Seperator with Thin Septum Magnet Sigmax=697. 8 um 20 sigma=14 mm 20 mm Separator: 62. 5 urad 12 个 0. 75 mrad Septum Magnet:L=2 m angle=?mrad 太强吗?多少合适?需要调研。。。 (2. 25 mrad)thicknes=3 -5 mm
Septum Magnet 垂直偏转: 0. 4078 T
Septum Magnet
Separator with Thin Septum Magnet Sigmax=697. 8 um 20 sigma=14 mm 20 mm Beam dump Septum Magnet:L=3 m Separator: 62. 5 urad 12 个 0. 75 mrad (4. 25 mrad)thicknes=3 -5 mm rho=705. 822 m B=0. 56 T
Dipole Strength Version 1. 0 without FFS Angle(mrad L(m) ) Rho(m) Brho(E 0/ c)(T/m) B(T) Ek(Ke. V) Ke. V/m B 0 3. 232 19. 6 6064. 36 400 0. 06596 631. 625 32. 226 BSep. L -0. 0625 4. 5 -72000 400 -0. 00556 53. 2 11. 822 BSeptum. L -4. 25 3 -705. 822 400 -0. 56667 5426. 4 1808. 8 BMatch 1 L -0. 469 4. 9 -10447. 8 400 -0. 03829 366. 624 74. 821 BMatch 2 L -3. 171 19. 6 -6181. 02 400 -0. 06471 619. 704 31. 618 BMatch 3 L -4. 36 19. 6 -4495. 41 400 -0. 08898 852. 069 43. 473 B 2 2. 167 19. 6 9044. 76 400 0. 04422 423. 494 21. 607 B 3 2. 167 19. 6 9044. 76 400 0. 04422 423. 494 21. 607 B 4 -2. 167 19. 6 -9044. 76 400 -0. 04422 423. 494 21. 607 B 5 -2. 167 19. 6 -9044. 76 400 -0. 04422 423. 494 21. 607 BMatch 3 R 4. 36 19. 6 4495. 41 400 0. 08898 852. 069 43. 473 BMatch 2 R 3. 171 19. 6 6181. 02 400 0. 06471 619. 704 31. 618 BMatch 1 R 0. 469 4. 9 10447. 8 400 0. 03829 366. 624 74. 821 BSeptum. R 4. 25 3 705. 822 400 0. 56667 5426. 4 1808. 8 BSep. R 0. 0625 4. 5 72000 400 0. 00556 53. 2 11. 822
Electrostatic Separator in LEP L=4. 5 m Lelectrode=4. 0 m Efield=2 MV/m E=55 Ge. V Angle=145 urad
Electrostatic Separator
Electrostatic Separator & Dipole Seperator : n=16 L=4. 5 m angle=62. 5 urad Dipole: n=16 L=4. 5 m angle=62. 5 urad
Next
CEPC PDR DA Study Feng Su, Yongjun Li, Yiwei Wang 2016. 5. 26
Nonlinear Driving Term habcde , a+b+c+d+e=3 , 1 st order nonlinear driving term a+b+c+d+e=4 , 2 nd order nonlinear driving term 1 st order chromaticity: h 11001, h 00111 2 nd order chromaticity: h 11002, h 00112 Tune with amplitude: h 11110, h 22000, h 00220
Nonlinear Driving Term Betx: 80. 992367 bety: 14. 172123 2 nm Sizmax: 402. 47 um Sigmay: 9. 22 um
CEPC Advanced Partial Double Ring Layout Feng Su, Jie Gao 2016. 5. 23
CEPC Advanced Partial Double Ring Layout II 1/2 RF ARC 1/2 RF IP 1_ee 1/2 RF APDR 3 Km 1/2 RF APDR 1/2 RF C=65640. 2 m IP 1_ee/IP 3_ee, 2. 968 Km 1/2 RF IP 2_pp/IP 4_pp, 1132. 8 m APDR, 1052. 87 m 4 Short Straights, 94. 4 m APDR IP 3_ee 1/2 RF 12 Long Straights, 566. 4 m 4 Long ARC, 124*FODO, 5852. 8 m 4 Medium ARC, 104*FODO, 4908. 8 m 4 Short ARC, 14*FODO, 660. 8 m 1/2 RF SU Feng 2016. 6. 2
CEPC Advanced Partial Double Ring Optics PDR 3 PDR 1 APDR Bypass APDR
APDR Part 1052. 87 m 5 4 3 2 1 0 0 100 200 300 400 500 600 700 800 900 1000 1100
Bypass Part at IP 2/4 12 Lc 566. 4 m 12 Lc L=42 m 24 Lc 12 Lc 566. 4 m 12 Lc s 566. 4 m Cell length=47. 2 m
PDR Part
LOGO
CEPC Advanced Partial Double Ring Layout I 1/2 RF ARC 1 IP 1_ee RF RF 3 Km APDR 1/2 RF Bypass about 42 m IP 2_pp/IP 4_pp, 1132. 8 m APDR, 1052. 87 m IP 4_pp IP 2_pp APDR C=62967. 86 m RF 2 ARC 4, 24*FODO, 1132. 8 m APDR ARC 2 IP 3_ee 4 Long Straights, 1132. 8 m 4 ARC 3, 79*FODO, 3728. 8 m ARC 3 RF 4 Medium Straights, 566. 4 m 4 ARC 2, 24*FODO, 1132. 8 m ARC 4 1/2 RF 4 Short Straights, 141. 6 m 4 ARC 1, 124*FODO, 5852. 8 m ARC 3 1/2 RF IP 1_ee/IP 3_ee, 2. 968 Km ARC 2 ARC 1 1/2 RF SU Feng 2016. 5. 23
CEPC Advanced Partial Double Ring Optics PDR 1 Bypass 2 APDR PDR 3 Bypass 4 APDR
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