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公开(公告)号:EP1641021A4
公开(公告)日:2008-05-28
申请号:EP04745912
申请日:2004-06-15
发明人: FUJIMATSU HIDEKI , SUZUKI NOBUHARU
摘要: The peripheral edge of a sapphire plate is air-tightly bonded by thermocompression to the end surface (window periphery) of a Kovar metal tube (1A) surrounding a light incidence window through a seal ring of aluminum (7), whereby there is no possibility of impurities being dispersed in the sapphire plate (2) to cause photon imperfection. As a result, when ultraviolet light is detected, the sapphire plate (2) is prevented from generating phosphorescence or fluorescence and dark noise is reduced.
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公开(公告)号:EP1632981A4
公开(公告)日:2007-09-05
申请号:EP04745983
申请日:2004-06-16
发明人: HANAI HIROYUKI , SUZUKI NOBUHARU
CPC分类号: H01J43/22
摘要: The Venetian blind dynode (5A) and metal channel dynodes (5B) of a dynode section (5), together with insulation spacers (insulation plates) (11), are fitted on pillars (9) erected on a stem plate (3) constituting a vacuum vessel, in which state the Venetian blind dynode (5A), metal channel dynodes (5B) and insulation spaces (insulation plates) (11) are integrally firmly supported by the pillars (9); therefore, the Venetian blind dynode (5A), metal channel dynodes (5B) and insulation spaces (insulation plates) (11) have no possibility of causing accidental lateral deviation due to vibration or shock, thus ensuring that the dynode section (5) develops excellent vibration resistance performance.
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