Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam

doi:10.1088/1674-1056/24/7/075203

中国物理B ›› 2015, Vol. 24 ›› Issue (7): 75203-075203.doi: 10.1088/1674-1056/24/7/075203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam

彭士香^a, 张艾霖^{a b}, 任海涛^a, 张滔^a, 徐源^a, 张景丰^a, 龚建华^a, 郭之虞^a, 陈佳洱^{a b}

a SKLNST & IHIP, School of Physics, Peking University, Beijing 100871, China;
b University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2015-02-24 修回日期:2015-04-08 出版日期:2015-07-05 发布日期:2015-07-05
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2014CB845502) and the National Natural Science Foundation of China (Grant No. 91126004).

Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam

Peng Shi-Xiang (彭士香)^a, Zhang Ai-Lin (张艾霖)^{a b}, Ren Hai-Tao (任海涛)^a, Zhang Tao (张滔)^a, Xu Yuan (徐源)^a, Zhang Jing-Feng (张景丰)^a, Gong Jian-Hua (龚建华)^a, Guo Zhi-Yu (郭之虞)^a, Chen Jia-Er (陈佳洱)^{a b}

a SKLNST & IHIP, School of Physics, Peking University, Beijing 100871, China;
b University of Chinese Academy of Sciences, Beijing 100049, China

Received:2015-02-24 Revised:2015-04-08 Online:2015-07-05 Published:2015-07-05
Contact: Peng Shi-Xiang E-mail:sxpeng@pku.edu.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2014CB845502) and the National Natural Science Foundation of China (Grant No. 91126004).

摘要/Abstract

摘要：

This paper describes a long-term operation of the 2.45-GHz microwave proton source at Peking University. The DC proton beam of 50–55 mA with energy of 35 keV has been run for 306 hours continuously. Total beam availability, defined as 35-keV beam-on time divided by elapsed time, is higher than 99%. Water cooling machine failures cause all the downtime, and no plasma generator failure or high voltage breakdown is observed. The longest uninterrupted run time is 122 hours.

关键词: ECR ion source, DC proton beam, plasma generator failure, high voltage breakdown

Abstract:

Key words: ECR ion source, DC proton beam, plasma generator failure, high voltage breakdown

中图分类号: (Plasma heating by microwaves; ECR, LH, collisional heating)

52.50.Sw

52.50.Dg (Plasma sources) 52.59.-f (Intense particle beams and radiation sources) 52.80.Pi (High-frequency and RF discharges)

彭士香, 张艾霖, 任海涛, 张滔, 徐源, 张景丰, 龚建华, 郭之虞, 陈佳洱. Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam[J]. 中国物理B, 2015, 24(7): 75203-075203.

Peng Shi-Xiang (彭士香), Zhang Ai-Lin (张艾霖), Ren Hai-Tao (任海涛), Zhang Tao (张滔), Xu Yuan (徐源), Zhang Jing-Feng (张景丰), Gong Jian-Hua (龚建华), Guo Zhi-Yu (郭之虞), Chen Jia-Er (陈佳洱). Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam[J]. Chin. Phys. B, 2015, 24(7): 75203-075203.

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Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam

Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam

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