Evaluation of an elliptically polarized undulator for the future Taiwan Photon Source

被引：1
|
作者：
Luo, H. -W. [1 ,2 ,3 ]
Chung, T. -Y. [3 ]
Lee, C. -H. [1 ]
Hwang, C. -S. [3 ,4 ]
机构：
[1] Natl Tsing Hua Univ, Dept Engn & Syst Sci, 101 Guangfu Rd, Hsinchu 30013, Taiwan
[2] Natl Tsing Hua Univ, Grad Program Sci & Technol Synchrotron Light Sour, 101 Guangfu Rd, Hsinchu 30013, Taiwan
[3] Natl Synchrotron Radiat Res Ctr, 101 HsinAnn Rd, Hsinchu 30073, Taiwan
[4] Natl Yang Ming Chiao Tung Univ, Dept Electrophys, 1001 Univ Rd, Hsinchu 30010, Taiwan
来源：
JOURNAL OF INSTRUMENTATION | 2021年 / 16卷 / 12期
关键词：
Acceleration cavities and superconducting magnets (high-temperature superconductor; radiation hardened magnets; normal-conducting; permanent magnet devices; wigglers and undulators); Instrumentation for synchrotron radiation accelerators;
D O I：
10.1088/1748-0221/16/12/P12017
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The resonant photon energy of an adjustable-phase undulator (APU) is varied with the relative motion of the magnet arrays along the longitudinal direction. There exists, however, a transverse field gradient (TFG) of order 100 T/m in an APU of small gap (similar to 10 mm). Whereas the TFG might affect the electron beam as it contributes to the dynamic field integral and the radiation integrals, the TFG might also degrade the performance of the synchrotron radiation due to the transverse position-dependent magnetic field. The effects of the TFG on the present Taiwan Photon Source (TPS) and future TPS-upgraded are analyzed to investigate the feasibility of an APU that operates in the soft x-ray region.
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页数：18
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