CEPC Partial Double Ring Lattice Design and DA Study

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Presentation transcript:

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 2016.5.5

Out line CEPC APDR (Advanced Partial Double Ring) Layout Redesign PDR Lattice by SAD and DA study Change Pylatt ( Li Yongjun code) more faster Next

CEPC Advanced Partial Double Ring Layout Feng Su, Jie Gao 2016.5.23

CEPC Advanced Partial Double Ring Layout I SU Feng 2016.5.23 IP1_ee IP3_ee IP2_pp IP4_pp 3Km RF 1/2RF IP1_ee/IP3_ee, 2.968Km IP2_pp/IP4_pp, 1132.8m APDR, 1052.87m 4 Short Straights, 141.6m 4 Medium Straights, 566.4m 4 Long Straights, 1132.8m 4 ARC1, 124*FODO, 5852.8m 4 ARC2, 24*FODO, 1132.8m 4 ARC3, 79*FODO, 3728.8m 2 ARC4, 24*FODO, 1132.8m C=62967.86m Bypass about 42m ARC1 ARC3 ARC2 ARC4 APDR

CEPC Advanced Partial Double Ring Optics PDR1 PDR3 APDR Bypass2 Bypass4

APDR Part 1052.87m

PDR Part

Bypass Part at IP2/4 566.4m s 12Lc 24Lc L=42m s Cell length=47.2m

CEPC Advanced Partial Double Ring Layout II ARC CEPC Advanced Partial Double Ring Layout II SU Feng 2016.5.26 IP1_ee IP3_ee 3Km 1/2RF IP1_ee/IP3_ee, 2.968Km IP2_pp/IP4_pp, 1132.8m APDR, 1052.87m 4 Short Straights, 141.6m 4 Long Straights, 566.4m 8 ARC, 124*FODO, 5852.8m C=66772.8m APDR

CEPC Advanced Partial Double Ring Optics PDR1 PDR3 APDR APDR APDR APDR APDR APDR

Redesign by SAD and DA study PDR Lattice Redesign by SAD and DA study Feng Su，Yiwei Wang 2016.5.26

CEPC PDR1.0.2 noFFS

CEPC PDR1.0.2 noFFS

CEPC PDR1.0.2 noFFS

CEPC PDR1.0.2 noFFS 1. ErrorX (IP1)-> 0 automatically 2. ErrorX (IP1)=10^-13 in MAD8 ErrorX (IP1)=10^-5 in SAD ? 3.

Improve Pylatt ( Li Yongjun code) to calculate ndr more faster Feng Su, Yongjun Li, Yiwei Wang 2016.5.26

Nonlinear Driving Term habcde , a+b+c+d+e=3 , 1st order nonlinear driving term a+b+c+d+e=4 , 2nd order nonlinear driving term 1st order chromaticity: h11001, h00111 2nd order chromaticity: h11002, h00112 Tune with amplitude: h11110, h22000, h00220

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