Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1988-02-24
1989-08-29
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
2502521, G01T 120
Patent
active
048620041
ABSTRACT:
A method and portable apparatus for measuring radiation dose and identifying a source radionuclide. Energy correction to calibrate detected charge to .gamma.-ray energy level is made through the use of naturally occurring radiation from 40K in a potassium compound KCl. One embodiment includes a portable scintillator and photomultiplier (PMT) along with an accumulation memory, an input means, a signal processing circuit, a memory and an output means. A warning function informs of an abnormality when the difference between the measured radiation data and the standard data in the device memory exceeds a predetermined value.
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European Search Report.
Hayakawa Tsuyoshi
Koike Kiyoshi
Tsuchiya Hiroshi
Hamamatsu Photonics Kabushiki Kaisha
Howell Janice A.
Nguyen Tuan
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