发明授权
US4200790A Closed-chamber high-pressure gas ion-flow electro-radiography apparatus
with direct-charge readout
失效
具有直接电荷读数的封闭式高压气体离子流电摄影装置
- 专利标题： Closed-chamber high-pressure gas ion-flow electro-radiography apparatus with direct-charge readout
- 专利标题（中）： 具有直接电荷读数的封闭式高压气体离子流电摄影装置
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申请号： US972453申请日： 1978-12-22
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公开(公告)号： US4200790A公开(公告)日： 1980-04-29
- 发明人: Kei-Hsiung Yang , Jack D. Kingsley
- 申请人： Kei-Hsiung Yang , Jack D. Kingsley
- 申请人地址： NY Schenectady
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： NY Schenectady
- 主分类号： H01J47/14
- IPC分类号： H01J47/14 ; G03G15/054 ; G03G15/22 ; H01J47/18 ; H04N5/32 ; G03B41/16
摘要：
A method and apparatus for ion-valve radiography, utilizing a high-pressure gaseous material for conversion of differentially-absorbed X-radiation into electrostatic charge images, utilizes a closed chamber and a charge-image-receiving mesh structure movable between an ion source and ion detection means, to provide direct charge readout without requiring opening of the imaging chamber.
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