Albedo dosimeter encapsulation

Details Albedo dosimeter encapsulation Albedo dosimeter encapsulation

1982-05-19

1985-01-08

Howell, Janice A.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

2504861, G01T 111

Patent

active

044928726

ABSTRACT:
Albedo dosimeter encapsulation for measuring neutron and gamma radiation in at least two dosimeter zones, comprises a casing having cadmium or boron containing walls which have neutron absorbing capability. The casing has a front side which faces a radiation field and a rear side which faces a body which carries the encapsulation. The rear side of the casing is closed by a cadmium or boron containing rear wall having a first portion and a second portion. A cover is located at the front side of the casing and has a cadmium or boron containing wall portion and a window portion. The casing has a first zone for holding a first dosimeter means and a second zone for holding a second dosimeter means. The first zone is aligned with the cadmium or boron containing wall portion of the cover and the first portion of the rear wall. The second zone is aligned with the window portion of the cover and the second portion of the rear wall. The cadmium or boron containing wall portion of the cover has a neutron absorbing capability which is different from the neutron absorbing capability of the first portion of the rear wall. The first portion of the rear wall has a neutron absorbing capability which is different from the neutron absorbing capability of the second portion of the rear wall.

REFERENCES:
patent: 4100414 (1978-07-01), Distenfeld
patent: 4286165 (1981-08-01), Jones et al.
patent: 4383179 (1983-05-01), Eisen et al.
Piesch et al., "Supralinearity and Re-evaluation of TLD 600 and TLD 700 in Mixed Neutron and Gamma Fields", Fourth International Conference on Luminescence Dosimetry, Krahow-Poland, Aug. 1974, pp. 1201 to 1212.
Piesch et al., "A New Technique for Neutron Monitoring in Stray Radiation Fields", Fifth International Conference of IRPA, Jerusalem, 1980, pp. 121 to 124.
Piesch et al., "Application of the TLD Albedo Technique for Monitoring and Interpretation of Neutron Stray Radiation Fields", Nuclear Instruments and Methods, 175, 1980, pp. 180 to 182.
Dale E. Hankins, "A Small, Inexpensive Albedo-Neutron Dosimeter", Los Alamos Scientific Laboratory LA-5261, University of California, Jul. 1973, pp. 1 to 8.

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