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Negative ion beam source vacuum method and apparatus used in conjunction with a charged particle cancer therapy system
专利权人:
Vladimir Balakin
发明人:
Vladimir Balakin
申请号:
US12571589
公开号:
US08129694B2
申请日:
2009.10.01
申请国别(地区):
US
年份:
2012
代理人:
摘要:
The invention comprises a negative ion beam source vacuum method and apparatus used as part of an ion beam injection system, which is used in conjunction with multi-axis charged particle or proton beam radiation therapy of cancerous tumors. The negative ion beam source contains a vacuum chamber isolated by a vacuum barrier from the vacuum tube of the synchrotron. The negative ion beam source vacuum system preferably includes: a first pump turbo molecular pump, a large holding volume, and a semi-continuously operating pump. By only pumping ion beam source vacuum chamber and by only semi-continuously operating the ion beam source vacuum based on sensor readings about the holding volume, the lifetime of the semi-continuously operating pump is extended.
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中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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