Self-powered neutron and gamma-ray flux detector

Details Self-powered neutron and gamma-ray flux detector Self-powered neutron and gamma-ray flux detector

1979-03-19

1981-08-18

Cangialosi, S. A.

Radiant energy

Invisible radiant energy responsive electric signalling

Neutron responsive means

176 19R, G01T 300

Patent

active

042848938

ABSTRACT:
A self-powered neutron and gamma-ray flux detector is provided wherein the emitter comprises an emitter core of at least one material selected from nickel, iron, titanium and alloys based on these metals, and an emitter outer layer around the core which has a thickness in the range of the order of 0.03 mm to of the order of 0.062 mm and which is of at least one material selected from platinum, tantalum, osmium, molybdenum and cerium. With this construction, by increasing the emitter diameter beyond the optimum for a solid platinum emitter, the ratio of neutron to gamma-ray sensitivity, and hence the prompt response fraction, is increased while an acceptably small burnup rate is maintained. Larger diameter emitters of this construction have response characteristics that closely match those required for a fuel power detector in, for example, heavy-water-moderated, natural-uranium power reactors. The emitter core is preferably of Inconel (Trademark) and the emitter jacket is preferably of platinum.

REFERENCES:
patent: 3050624 (1962-08-01), Kanner
patent: 3565760 (1971-02-01), Parkos et al.
patent: 3872311 (1975-03-01), Goldstein et al.
patent: 3904881 (1975-04-01), Klar et al.
patent: 4080533 (1978-03-01), Todt et al.
patent: 4087693 (1978-05-01), Brown et al.
patent: 4118626 (1978-10-01), Goldstein et al.
patent: 4123658 (1978-10-01), Johansson

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