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Charged particle beam injection method and apparatus used in conjunction with a charged particle cancer therapy system
专利权人:
Vladimir Yegorovich Balakin
发明人:
Vladimir Yegorovich Balakin
申请号:
US12994106
公开号:
US08896239B2
申请日:
2009.05.21
申请国别(地区):
US
年份:
2014
代理人:
摘要:
The invention comprises a charged particle beam injection method and apparatus used in conjunction with multi-axis charged particle radiation therapy of cancerous tumors. The negative ion beam source includes a negative ion beam source, vacuum system, an ion beam focusing lens, and/or a tandem accelerator. The negative ion beam source uses electric field lines for focusing a negative ion beam. The negative ion source plasma chamber includes a magnetic material, which provides a magnetic field barrier between a high temperature plasma chamber and a low temperature plasma region. The injection system vacuum system and a synchrotron vacuum system are separated by a conversion foil, where negative ions are converted to positive ions. The foil is sealed to the edges of the vacuum tube providing for a higher partial pressure in the injection system vacuum chamber and a lower pressure in the synchrotron vacuum system.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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