Gamma ray compensation-type neutron ionization chamber

Details Gamma ray compensation-type neutron ionization chamber Gamma ray compensation-type neutron ionization chamber

1985-01-23

1987-07-21

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250385, 250390, G01T 1185, G01T 300

Patent

active

046820361

ABSTRACT:
A neutron ionization chamber of the gamma ray compensation type comprises a neutron-sensing ionization chamber portion having an electrode surface coated with a material for sensing neutrons, a gamma ray-sensing ionization chamber portion which has a low neutron sensitivity in comparison with the neutron sensitivity of said neutron-sensing material, a device for substracting ionization currents in the gamma ray-sensing ionization chamber portion from ionization currents in the neutron-sensing ionization chamber portion, and a coating material which is coated on an electrode surface of the gamma ray-sensing ionization chamber portion, the coating material including a material for sensing neutrons the percentage of which is less than the the percentage of the neutron sensing material of the neutron sensing ionization chamber portion.

REFERENCES:
patent: 2976418 (1961-03-01), Johnson
patent: 4197463 (1980-04-01), Todt et al.
patent: 4302696 (1981-11-01), Wakayama et al.

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