The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2011
Filed:
Jun. 01, 2006
Hiroyuki Kyushima, Hamamatsu, JP;
Hideki Shimoi, Hamamatsu, JP;
Hiroyuki Sugiyama, Hamamatsu, JP;
Hitoshi Kishita, Hamamatsu, JP;
Suenori Kimura, Hamamatsu, JP;
Yuji Masuda, Hamamatsu, JP;
Takayuki Ohmura, Hamamatsu, JP;
Hiroyuki Kyushima, Hamamatsu, JP;
Hideki Shimoi, Hamamatsu, JP;
Hiroyuki Sugiyama, Hamamatsu, JP;
Hitoshi Kishita, Hamamatsu, JP;
Suenori Kimura, Hamamatsu, JP;
Yuji Masuda, Hamamatsu, JP;
Takayuki Ohmura, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
The present invention relates to a photomultiplier having a fine structure capable of realizing high detection accuracy by effectively suppressing cross talk among electron-multiplier channels. The photomultiplier comprises a housing whose inside is maintained vacuum, and, in the housing, a photocathode, an electron-multiplier section, and anodes are disposed. The electron-multiplier section has groove portions for cascade-multiplying photoelectrons as electron-multiplier channels, and the anodes are constituted by channel electrodes corresponding to the groove portions respectively defined by wall parts. In particular, at least parts of the respective channel electrodes are located in spaces sandwiched between pairs of wall parts defining the corresponding groove portions.