G - Physics – 01 – T
Patent
G - Physics
01
T
358/11.05
G01T 1/20 (2006.01) G01T 1/164 (2006.01)
Patent
CA 1174375
ABSTRACT OF DISCLOSURE In a scintillation camera having apparatus for shortening waveforms, a regulating circuit for preventing display of signals representing unwanted ? rays having excessive intensity including a device for comparing the peak of the shortened waveform repre- senting the total light energy received by the camera from the ?ray with a preset reference range between an upper limit and the saturation level of the pre-amplifiers of the camera and for generating a signal while the total light energy exceeds the ref- erence range, a circuit for generating an output for a predeter- mined time after the signal ceases and an AND gate for blocking access to the display during the period of the output.
378790
Kakegawa Makoto
Kihara Tomohiko
Nishikawa Mineki
Kirby Eades Gale Baker
Tokyo Shibaura Denki Kabushiki Kaisha
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