A Compton transmission polarimeter for DC and SRF electron photo-injectors

被引：0
|
作者：
Blume, G. [1 ]
Bruker, M. [2 ]
Cuevas, C. [2 ]
Dong, H. [2 ]
Neres, Benjamin Fernandes [3 ]
Ghoshal, P. [2 ]
Gopinath, S. [2 ]
Grames, J. [2 ]
Gregory, S. [2 ]
Hays, G. [2 ]
Le Galliard, C. [3 ]
Marsillac, S. [1 ]
Moffit, B. [2 ]
Trung, Thi Nguyen [3 ]
Poelker, M. [2 ]
Suleiman, R. [2 ]
Voutier, E. [3 ]
Zhang, S. [2 ]
机构：
[1] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA
[2] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA
[3] Univ Paris Saclay, IJCLab, CNRS-IN2P3, F-91405 Orsay, France
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2024年 / 1062卷
关键词：
Compton transmission polarimetry; Mott-scattering polarimetry; MULTI-MEV ELECTRONS; MOTT SCATTERING; POLARIZATION;
D O I：
10.1016/j.nima.2024.169224
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A polarimeter was constructed to measure the longitudinal polarization of a spin-polarized electron beam at 5 and 7 MeV. The polarimeter takes advantage of Compton scattering between circularly polarized bremsstrahlung photons produced by a longitudinally polarized electron beam striking a copper radiator and the spin-polarized electrons orbiting the iron atoms of an analyzing magnet. This so-called Compton transmission polarimeter is compact and relatively inexpensive compared to Mott-scattering polarimeters because no spin manipulator is required. This work presents the design of the radiator, analyzing magnet, photon detector assembly, and data acquisition system of the Compton transmission polarimeter as well as beam commissioning results performed at the Upgraded Injector Test Facility at Jefferson Lab.
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页数：13
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