Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Patent
1981-02-18
1983-09-06
La Roche, Eugene
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
378154, G01T 124
Patent
active
044031505
ABSTRACT:
A semiconductor radiation sensor arrangement for an automatic X-ray exposure control apparatus disposed in front of an X-ray film to be exposed to X-rays. A semiconductor radiation sensor is set in a mount. The mount is bored with a tapering penetrating hole and securely engaged with a hole penetrating a substrate. The peripheral walls of the mount and that of the penetrating hole of the substrate are tapered in cross section in the similar form. The semiconductor radiation sensor is fixed in the penetrating hole of the mount and has a sufficiently small thickness to cause X-rays to be attenuated to a less extent than 800 microns of aluminum equivalent thickness. Leads are formed of an aluminum layer with a smaller thickness than 80 microns and connected to the electrodes of the semiconductor radiation sensor. At least one scattered X-ray eliminating grid is disposed in parallel with the substrate and the semiconductor radiation sensor.
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R. C. Trammell; "Semiconductor Detector Fabrication Techniques", vol. NS-25, No. 2 of IEEE Transactions on Nuclear Science, (Apr. 1978), pp. 910-915.
P. A. Schlosser et al.; "A Practical Gama-Ray Camera System Using High-Purity Germanium", vol. NS-21, No. 1 of IEEE Transactions on Nuclear Science, (Feb. 1974), pp. 658-664.
Kurihara Tetsuro
Nishio Kosaku
Fields Carolyn E.
La Roche Eugene
Tokyo Shibaura Denki Kabushiki Kaisha
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