scholarly journals Circular electron-positron collider beam energy measurement scheme based on microwave-electronic Compton backscattering

2021 ◽  
Vol 70 (13) ◽  
pp. 131301-131301
Author(s):  
Dong Xu ◽  
◽  
Huang Yong-Sheng ◽  
Tang Guang-Yi ◽  
Chen Shan-Hong ◽  
...  
Keyword(s):  
Beam Energy ◽  
Energy Measurement ◽  
Measurement Scheme ◽  
Electron Positron ◽  
Compton Backscattering ◽  
Microwave Electronic

CEPC Z-pole polarization design studies

2021 ◽  
pp. 2142003
Author(s):  
Wenhao Xia ◽  
Jie Gao ◽  
Yiwei Wang ◽  
Dou Wang
Keyword(s):  
Beam Energy ◽  
Center Of Mass ◽  
Transverse Polarization ◽  
Beam Polarization ◽  
Energy Measurement ◽  
Design Studies ◽  
Electron Positron ◽  
Polarized Beam ◽  
Different Types ◽  
Schematic Design

In this paper, we give preliminary designs of beam polarization manipulations by inserting three different types of insertions in the Circular Electron–Positron Collider (CEPC) at center-of-mass energies of 91 GeV (Z-pole). With the wigglers in the collider ring, we can obtain 5% transverse polarization in 1.1 h for the precise energy measurement. To overcome depolarization effects as the beam energy rises from 10 GeV to 45.5 GeV in the booster ring, Siberian snakes based on helical magnets are adopted. Finally, for longitudinally polarized beam collisions, a schematic design of spin rotators based on solenoids in the collider ring is studied.

The beam energy measurement system for the Beijing electron-positron collider

2012 ◽  
Vol 225-227 ◽  
pp. 309-314 ◽  
Author(s):  
J.Y. Zhang ◽  
E.V. Abakumova ◽  
M.N. Achasov ◽  
V.E. Blinov ◽  
X. Cai ◽  
...  
Keyword(s):  
Measurement System ◽  
Beam Energy ◽  
Energy Measurement ◽  
Electron Positron

The circular electron–positron collider beam energy measurement with Compton scattering and beam tracking method

2020 ◽  
Vol 91 (3) ◽  
pp. 033109
Author(s):  
Guangyi Tang ◽  
Shanhong Chen ◽  
Yuan Chen ◽  
Zhe Duan ◽  
Manqi Ruan ◽  
...  
Keyword(s):  
Compton Scattering ◽  
Beam Energy ◽  
Energy Measurement ◽  
Tracking Method ◽  
Electron Positron ◽  
Beam Tracking
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