LOGO CEPC Partial Double Ring Lattice Design SU

LOGO CEPC Partial Double Ring Lattice Design SU Feng WANG Dou WANG Yiwei GAO Jie BIAN Tianjinan DUAN Zhe GENG Huiping XU Gang BAI Sha XIAO Ming Key Laboratory of Particle Acceleration Physics and Technology Institute of High Energy Physics Chinese Academy of Sciences 2015. 11. 27

Suggestion from last meeting (2015. 11. 13) MAD 8/MADX 对于Electrostatic Separator 的处理（Dipole/Separator/Kicker/Matrix Comparation）

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=4. 25 mrad （0. 70187度） thicknes=3 mm

Dipole

Separator

Kicker

Change Reference Coordinate Test

Mad. X

Mad 8

Test 0 !-----------test 0 --------------------------TEST 0: LINE=(half. Q, 12*SEPL, MSEPFODOdf);

Test 1 !------ test 1 coordinate translation-----REFCHANGE 1: translation, X=0. 022, Y=0, T=0, PX=0, PY=-0. 00075, PT=0; TEST 1: LINE=(half. Q, 12*SEPL, REFCHANGE 1, MSEPFODOdf);

Test 2 !-------test 2 ---MATRIX-----MATRIX 2: MATRIX, L=0. 0, KICK 1=0. 022, KICK 4=-0. 00075; TEST 2: LINE=(half. Q, 12*SEPL, MATRIX 2, MSEPFODOdf);

Test 3 ! -----test 3 ---y-rotation-----------------------------! REFCHANGE 3: YROTATION, ANGLE=0. 00075; TEST 3: LINE=(half. Q, 12*SEPL, REFCHANGE 3, MSEPFODOdf);

Test 4 ! -----test 4 ---y-rotation----X=0. 022 ------------------------! REFCHANGE 3: YROTATION, ANGLE=0. 00075; REFCHANGE 4: translation, X=0. 022; TEST 4: LINE=(half. Q, 12*SEPL, REFCHANGE 3, REFCHANGE 4, MSEPFODOdf);

Test 5 !-------test 5 changeref-------------------------REFCHANGE 5: CHANGEREF, PATCH_ANG=0, 0. 00075, 0, PATCH_TRANS=0. 022, 0, 0; TEST 5: LINE=(half. Q, 12*SEPL, REFCHANGE 5, MSEPFODOdf);

Test 6 !-------test 6 matrix-------------------------MATRIX 6: MATRIX, L=0. 0, RM 11=0, RM 22=0; TEST 6: LINE=(half. Q, 12*SEPL, MATRIX 6, MSEPFODOdf);

Test 7 !-------test 7 ---MATRIX----REFCHANGE 3: YROTATION, ANGLE=0. 00075; MATRIX 7: MATRIX, l=0. 0, KICK 1=-0. 02025; TEST 7: LINE=(half. Q, 12*SEPL, MATRIX 7, REFCHANGE 3, MSEPFODOdf);

Separator Matrix MATRIX, L=0. 0, RM 11=0, RM 22=0;

Kicker Matrix MATRIX, L=0. 0, RM 11=0, RM 22=0;

Dipole Seperator Kicker 0, 025 0, 02 0, 015 0, 01 0, 005 0 0 20 40 X=20. 25 mm 60 X=20. 25 mm

用Dipole代替双环Lattice分开写

Layout（Version 1. 0+FFS 20151126）

Orbit (RING 3_DR_IP 1) Version 1. 0 + FFS(20151126) 10 8 6 4 2 0 -4 -6 -8 -10 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400

Survey & Dynamic Aperture （Version 1. 0 +FFS 20151126）

Dynamic Aperture Comparation （Version 0. 3 +FFS 20151027）（Version 1. 0 +FFS 20151027）

FMA （Version 1. 0 +FFS 20151126）

Layout（Version 1. 0 without FFS）

Orbit (RING 3_DR_IP 1 L) Version 1. 0 without FFS 10 8 6 4 2 0 -4 -6 -8 -10 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400

Survey & Dynamic Aperture （Version 1. 0 –without FFS） CEPC Partial Double Ring Lattice (Version 1. 0 -20151126)

Dynamic Aperture Comparation 0: 33σx 760σy 0. 01： 13σx 320σy 0. 02： 10σx 170σy 0: 50σx 1500σy 0. 01： 50σx 900σy 0. 02： 40σx 800σy CEPC Partial Double Ring Lattice CEPC Main Ring Lattice (without pretzel) (Version 0. 3 -20151027) (September 30, 2014 Geng Huiping)

Next to do 1. IR（FFS）match and Optimization 2. Dynamic Aperture Optimization

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