CEPC 注入 Cui Xiaohao 2017/09/22.

Presentation on theme: "CEPC 注入 Cui Xiaohao 2017/09/22."— Presentation transcript:

1 CEPC 注入 Cui Xiaohao 2017/09/22

2 组成： Linac: (4 GeV) Pre-booster: (from 4 GeV to 45 GeV)
Booster: (from 45 GeV to 120 GeV or 80 GeV)

3 组成： Booster Main Collider Pre-Booster Linac

4 直线出口束流参数： 能量 （4GeV) 发射度 (0.3 mm.mrad) 重复频率：100 Hz

5 Pre-booster:参数 Energy 4 GeV Unit Energy 45 GeV Emittance 0.08 nm.rad
10.16 U0 0.0375 MeV 600 纵向Damping time 1.98 s 0.0014 Momentum factor e-004 Momentum Acceptance 2% Circumference 5600 m Cavity voltage 11 Mv 123 RF frequency 650 MHz Tune 84.277/83.336 Max beam current 17 mA

6 Pre-booster:lattice 90/90 FODO cell 全环由4个arc段和4个直线段组成

7 Booster:参数 Higgs W Z Energy (GeV) 120 80 45 SR loss/Turn (GeV) 1.36
0.26 0.028 emittance 3.01 nm.rad 1.34 nm.rad 0.43nm.rad Booster bunch number 644 554 1065 Top-Up Booster bunch charge 0.5 nC 0.61 nC 0.31 nC Top-Up Booster current 0.59 mA 0.33 mA 0.929 mA Max booster current 1 mA Damping time 0.06s 0.2s 1s

8 Booster:lattice

9 注入： Pre-booster和booster的注入均采用on-axis 单次注入 主环 的注入采用多圈off-axis 累积注入
Closed orbit kickers Injected Beam Circulating Beam

10 注入时序： Pre-booster和booster采用相同的束团数，通过一次注入和升能过程即可完成全能量升能。 降能4s
Pre-booster升能1s 降能1s 直线注入10s

11 End