Design and testing of focusing magnets for a compact electron linac

被引：2

作者：

Chen, Qushan ^{[1
]}

Qin, Bin ^{[1
]}

Liu, Kaifeng ^{[1
]}

Liu, Xu ^{[1
]}

Fu, Qiang ^{[1
]}

Tan, Ping ^{[1
]}

Hu, Tongning ^{[1
]}

Pei, Yuanji ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Sch Elect Informat & Commun, Wuhan 430074, Hubei, Peoples R China

[2] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2015年 / 798卷

基金：

中国国家自然科学基金;

关键词：

Space charge effect; Beam envelope; Solenoid; Magnetic field measurement;

D O I：

10.1016/j.nima.2015.07.018

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Solenoid field errors have great influence on electron beam qualities. In this paper, design and testing of high precision solenoids for a compact electron linac is presented. We proposed an efficient and practical method to solve the peak field of the solenoid for relativistic electron beams based on the reduced envelope equation. Beam dynamics involving space charge force were performed to predict the focusing effects. Detailed optimization methods were introduced to achieve an ultra compact configuration as well as high accuracy, with the help of the POISSON and OPERA packages. Efforts were attempted to restrain system errors in the off-line testing, which showed the short lens and the main solenoid produced a peak field of 0.13 T and 0.21 T respectively. Data analysis involving central and off axes was carried our and demonstrated that the testing results fitted well with the design. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：74 / 79

页数：6

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