@article{141180737f6546a2ad1804b6d873214c,
title = "Continuous operation of 2.45-GHz microwave proton source for 306 hours with more than 50 mA DC beam",
abstract = "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.",
keywords = "DC proton beam, ECR ion source, high voltage breakdown, plasma generator failure",
author = "Peng, {Shi Xiang} and Zhang, {Ai Lin} and Ren, {Hai Tao} and Tao Zhang and Yuan Xu and Zhang, {Jing Feng} and Gong, {Jian Hua} and Guo, {Zhi Yu} and Chen, {Jia Er}",
note = "Publisher Copyright: {\textcopyright} 2015 Chinese Physical Society and IOP Publishing Ltd.",
year = "2015",
month = jul,
day = "1",
doi = "10.1088/1674-1056/24/7/075203",
language = "English",
volume = "24",
journal = "Chinese Physics B",
issn = "1674-1056",
publisher = "IOP Publishing",
number = "7",
}
