Portable apparatus for measurement of nuclear radiation

Details Portable apparatus for measurement of nuclear radiation Portable apparatus for measurement of nuclear radiation

1974-12-06

1976-04-13

Borchelt, Archie R.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250308, G01T 120

Patent

active

039506460

ABSTRACT:
A portable apparatus for measurement of nuclear radiation, particularly beta particle radiation due to contamination, of a worktop or bench, comprises a plastic scintillator sheet mounted in the base of a housing, a photomultiplier within the housing, optically coupled to the plastic scintillator sheet, and a rate-motor or counter connected to the photo-multiplier. A pump is also provided, to reduce pressure between the work surface and the plastic scintillator sheet to substantially below atmospheric pressure, so as to increase the mean range of the radiation. Accordingly, the base of the housing is also fitted with a sealing ring.

REFERENCES:
patent: 2841715 (1958-07-01), Schultz
patent: 2945955 (1960-07-01), Mossop et al.
patent: 3056886 (1962-10-01), Glaude et al.
patent: 3189742 (1965-06-01), Leuba

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