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US5227633A Expired / Lapsed US ⏱️ 0.0 years remaining

Joined scintillator block body for radiation detector

Assignee: Shin-Etsu Chemical Co Ltd
•
Filing: 1992-03-12
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Granted: 1993-07-13
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Expires: 2012-03-12
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Abstract

Abstract The joined scintillator block body for radiation detector according to the present invention comprises a plurality of scintillator blocks, each being divided into small scintillator chips through deep grooves formed by cutting each block from the light-incident side and filled with a reflecting material and these plurality of blocks being joined together, wherein a part of the joined faces of each neighboring two blocks is joined with the reflecting material and the remaining portion thereof is joined with a transparent resin layer capable of transmitting scintillation light rays emitted by the scintillator chips. In the foregoing joined scintillator block body for radiation detector, all of the divisions or scintillator chips of the joined scintillator block body have the same ability of light emission and, therefore, the radiation can always be detected at any portion on the photomultiplier tube under the sam conditions.

Inventors

  • 👤 Toshihiko Ryuo
  • 👤 Takeo Kawanake

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 08:31
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/202; G01T1/2002

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 89 words
A joined scintillator block body for radiation detector which comprises a plurality of scintillator blocks, each being divided into small scintillator chips through deep grooves formed by cutting each block from the light incident side and filled with a reflecting material and these plurality of blocks being joined together, wherein a part of the joined faces of each neighboring two blocks is joined with the reflecting material and the remaining portion thereof is joined with a transparent resin capable of transmitting scintillation light rays emitted by the scintillator chips.
Claim 2
Dependent Claim 89 words
A joined scintillator block body for radiation detector which comprises a plurality of scintillator blocks, each being divided into small scintillator chips through deep grooves formed by cutting each block from the light incident side and filled with a reflecting material and these plurality of blocks being joined together, wherein a part of the joined faces of each neighboring two blocks is joined with the reflecting material and the remaining portion thereof is joined with a transparent resin capable of transmitting scintillation light rays emitted by the scintillator chips.
Claim 3
Dependent Claim 26 words
The joined scintillator block body for radiation detector of claim 1 wherein the scintillator block is a crystal of Bi 4 Ge 3 O 1 2.
Claim 4
Dependent Claim 26 words
The joined scintillator block body for radiation detector of claim 1 wherein the transparent resin capable of transmitting the scintillation light rays is a silicone resin.
Claim 5
Dependent Claim 45 words
The joined scintillator block body for radiation detector of claim 1 wherein the ratio of the area A of each neighboring two scintillator blocks joined with the transparent resin to the area B of the uncut portion below the groove: A/B satisfies the relation: 1<A/B<3.

References Cited (Backward Citations)

US4533489A Cited
JPS6439578A Cited
US4982096A Cited
US5091650A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-07-12 1997-01-11 1997-07-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-07-12 2001-01-11 2001-07-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-07-12 2005-01-11 2005-07-13 $7700.00 Window Closed / Lapsed

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