Title:
RADIATION DETECTOR AND RADIATION DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/233768
Kind Code:
A1
Abstract:
This radiation detector comprises: an optical semiconductor element having a plurality of light-receiving regions; a scintillator unit disposed on the optical semiconductor element; and an adhesive layer disposed between the optical semiconductor element and the scintillator unit. The scintillator unit has at least one scintillator corresponding to the plurality of light-receiving regions. Each of the plurality of light-receiving regions has a plurality of light-receiving parts connected to each other in parallel. Each of the plurality of light-receiving parts comprises: an avalanche photodiode that operates in a Geiger mode; and a quenching resistor that is connected in series to the avalanche photodiode. The distance between adjacent light-receiving regions is greater than the distance between the light-receiving regions and the scintillator which face each other.
Inventors:
YOSHIDA TETSUYA (JP)
NAKAMURA SHIGEYUKI (JP)
OHTA TSUYOSHI (JP)
MATSUMOTO TAKUYA (JP)
FUJITA TAKUYA (JP)
NAKAMURA SHIGEYUKI (JP)
OHTA TSUYOSHI (JP)
MATSUMOTO TAKUYA (JP)
FUJITA TAKUYA (JP)
Application Number:
PCT/JP2023/010956
Publication Date:
December 07, 2023
Filing Date:
March 20, 2023
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
G01T1/20; H01L27/144; H01L27/146; H01L31/08; H01L31/10; H01L31/107
Foreign References:
| US20140117245A1 | 2014-05-01 | |||
| JPS6042671A | 1985-03-06 | |||
| JP2001242253A | 2001-09-07 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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