Design of a 4.7-T Wavelength Shifter With Cryogenic Permanent Magnets at NSRRC

被引：1

作者：

Yu, Yung-Teng ^{[1
]}

Wang, Chao-Chin ^{[2
]}

Chen, Hui-Huang ^{[1
]}

Huang, Jui-Che ^{[1
]}

Hwang, Ching-Shiang ^{[1
,2
]}

Chang, Cheng-Hsiang ^{[1
]}

机构：

[1] Natl Synchrotron Radiat Res Ctr, Hsinchu 30067, Taiwan

[2] Natl Tsing Hua Univ, Grad Program Sci & Technol Synchrotron Light Sour, Hsinchu 30013, Taiwan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2016年 / 26卷 / 04期

关键词：

Cryogenic; high magnetic field; multipole magnet; permanent magnet; PrFeB; wavelength shifter; HEAT LOAD; WIGGLER;

D O I：

10.1109/TASC.2016.2537979

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 4.77-T wavelength shifter is designed for extending the X-ray spectrum beyond 50 keV in the 3-GeV storage ring of the Taiwan Photon Source. The compact 400-mm-long wavelength shifter is designed by using the PrFeB-based cryogenic permanent magnets to generate 4.77 T at a 5-mm magnet gap. The 0.1% field uniformity on the transverse 40 mm is calculated. A cryocooler system that is cryogen free is designed to cool the magnets and to maintain the temperature of the magnets at 77 K in a vacuum chamber. Numerical simulation shows that the cooling system can cool the magnet array from 300 K to 77 K. In this paper, we present the high-magnetic-field performance and the cooling system for the wavelength shifter.

引用

页数：4