He-3 neutron proportional counter with internal leakage...

Details He-3 neutron proportional counter with internal leakage... He-3 neutron proportional counter with internal leakage...

2006-07-06

2008-11-25

Hannaher, Constantine (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

C250S382000

Reexamination Certificate

active

07456411

ABSTRACT:
A radiation detector includes a pressure-tight housing having a peripheral, cylindrically-shaped wall and opposite end closures. An electrode wire extends through a center of the housing, spaced from the cylindrically-shaped wall. A pressurized detector gas fills the housing, and circuit connections to the electrode wire and the housing permits application of an electric potential thereto. The electrode wire is composed of a material providing a source of alpha particles for ionizing the gas within the housing, generating an alpha peak on the output spectrum distinct from the peak generated by incident neutrons. A related method is also disclosed.

REFERENCES:
patent: 3560737 (1971-02-01), Skildum
patent: 3617804 (1971-11-01), Paine et al.
patent: 5180917 (1993-01-01), Wraight

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