Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1990-04-09
1991-10-29
Berman, Jack I.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250368, 2504831, 2504861, 2504871, G01J 158
Patent
active
050618555
ABSTRACT:
By a radiation detector comprising a photomultiplier tube, a Bi.sub.4 Ge.sub.3 O.sub.12 crystal of which a face contacted to the photomultiplier tube and reflecting layers which essentially consisting of reflecting powdery agent and an acrylic resin type binder provided on faces other than the face of the crystal, the energy resolution can be made smaller and stable. Thus, the resolution of the detector can be made higher. The detection accuracy can be improved since the energy resolution caused to be reduced and stabilized by raising the thickness of reflecting layers up to 50 .mu.m or more. Furthermore use of an acrylic resin, as a binder for forming the reflecting layers, is effective in eliminating the influence of the silicone-based adhesive agent, which allows to enhance the reflectance and adhesion of the reflecting layers. At the same time, a processing once suffices to build the reflecting layers thus resolving the problem of intricate manufacturing.
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Makikawa Shinji
Mori Tatsuo
Ryuo Toshihiko
Berman Jack I.
Nguyen Kiet T.
Shin-Etsu Chemical Co. , Ltd.
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