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CORPUSCULAR BEAM IMAGE DETECTOR USING GAS AMPLIFICATION BY PIXEL TYPE ELECTRODES

外国特許コード F040001020
整理番号 F040001020
掲載日 2005年4月25日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2001JP005165
国際公開番号 WO 2002/001249
国際出願日 平成13年6月18日(2001.6.18)
国際公開日 平成14年1月3日(2002.1.3)
優先権データ
  • 特願2000-191994 (2000.6.27) JP
発明の名称 (英語) CORPUSCULAR BEAM IMAGE DETECTOR USING GAS AMPLIFICATION BY PIXEL TYPE ELECTRODES
発明の概要(英語) A corpuscular beam image detector which has a high sensitivity and which uses the gas amplification by pixel type electrodes capable of improving the reliability of an electrode portion. Electrons e-, as ionized in a gas by an incoming corpuscular beam, are drifted by a drift electric field to the pixels of a cylindrical anode electrode (12) in a detector surface direction. In the vicinity of the cylindrical anode electrode (12), the electrons are caused to effect a gas avalanche amplification by the intensive electric field which is established by the anode-cathode voltage and the speck-like electrode shape. The resultant + ions quickly drift to a surrounding strip-shaped cathode electrode (14). In this procedure, there are generated at both the cylindrical anode electrode (12) and the strip-shaped cathode electrode (14) the charges which can be observed on an electric circuit, so that the incoming corpuscular beam can be located by observing which strip of the anode and the cathode that amplification phenomenon has occurred at.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • Japan Science And Technology Corporation
  • 発明者(英語)
  • Tanimori,Toru
  • Ochi,Atsuhiko
国際特許分類(IPC)
指定国 US AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR
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