发明申请
- 专利标题: Photomultiplier Tube and Radiation Detecting Device
- 专利标题(中): 光电倍增管和辐射检测装置
-
申请号: US12224367申请日: 2007-02-27
-
公开(公告)号: US20090140151A1公开(公告)日: 2009-06-04
- 发明人: Hideki Shimoi , Katsuma Nagai , Hiroyuki Kyushima
- 申请人: Hideki Shimoi , Katsuma Nagai , Hiroyuki Kyushima
- 申请人地址: JP HAMAMATSU-SHI
- 专利权人: HAMAMATSU PHOTONICS K.K.
- 当前专利权人: HAMAMATSU PHOTONICS K.K.
- 当前专利权人地址: JP HAMAMATSU-SHI
- 优先权: JP2006-053805 20060228
- 国际申请: PCT/JP2007/053643 WO 20070227
- 主分类号: G01T1/20
- IPC分类号: G01T1/20 ; H01J43/18
摘要:
A vacuum vessel is configured by hermetically joining a faceplate (13) to one end of a side tube (15) and a stem (29) to the other end via a tubular member (31). A photocathode (14), a focusing electrode (17), dynodes (Dy1-Dy12), a drawing electrode (19), and anodes (25) are arranged within the vacuum vessel. The dynodes (Dy1-Dy12) and the anodes (25) have a plurality of channels in association with each other. The drawing electrode (19) is placed on electrically-conductive supporting pins (21) penetrating the stem (29). The dynodes (Dy1-Dy12) are stacked with insulating members (23) interposed between one another. Since the supporting pins (21) and the insulating members (23) are arranged coaxially, each electrode can be fixed by applying pressure in z-axis direction. At the same time, emission of light between the anodes (25) and the drawing electrode (19) can be suppressed, thereby enabling noise to be reduced.
公开/授权文献
- US07902509B2 Photomultiplier tube and radiation detecting device 公开/授权日:2011-03-08