Radiant energy – Radiant energy generation and sources – With container for radioactive source and radiation...
Patent
1991-04-11
1992-11-10
Berman, Jack I.
Radiant energy
Radiant energy generation and sources
With container for radioactive source and radiation...
2504971, 2504981, 2502521, G21F 502
Patent
active
051626551
ABSTRACT:
Apparatus for calibrating radiation detection instruments retains a beta radiation source, typically strontium 90, providing a known intensity of beta radiation in a safety shielded position within an aluminum mass to meter out standard doses in a plurality of ranges for calibrating corresponding instrument ranges. Safety features assure shielding of the radiation to prevent any exposure of personnel calibrating instruments to radiation. The calibrating apparatus is portable, but is supplied also in a wall mount housing structure with a horizontally extending shelf for receiving an instrument into calibration position. A pivotable treadle must be operated when placing the instrument into calibration position in order to release calibrating radiation from the source, which is retained in a safe storage position when the calibrating apparatus is not in use.
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Berman Jack I.
Beyer James
Brown Laurence R.
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