Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1985-11-01
1988-09-13
Church, Craig E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
2502521, 378120, 378207, G01T 120
Patent
active
047711779
ABSTRACT:
A point source for calibrating a gamma camera uses the nuclide cerium-141. The source is disposed in a shuttered, shielded housing. The shutter is incrementally advanceable to expose, over time, an increasing portion of the area of the source to maintain a relatively constant gamma ray flux therefrom.
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"Methods for assay of radioisotopes" by Lyon et al., Nucleonics 8-1966, vol. 24, No. 8.
"Radioisotope Laboratory Techniques" by Faires and Parks, 3d ed. Published 1973 by Butterworths, pp. 194-196.
"Nuclear Radiation Detection" by Price, 2d edition published by McGraw-Hill 1964, pp. 97-99.
Church Craig E.
E. I. Du Pont de Nemours and Company
Freeman John C.
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