Ultra-sensitive carbon fiber dosimeter

Details Ultra-sensitive carbon fiber dosimeter Ultra-sensitive carbon fiber dosimeter

1993-12-15

1995-11-07

Gregory, Bernarr E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

G01T 114, H01J 4704

Patent

active

H00015008

ABSTRACT:
A 20 mR (5.16 * 10.sup.-3 C/Kg) full-scale carbon fiber dosimeter that provides a direct reading of low-level Gamma and neutron exposure in real-time. To attain this, the dosimeter utilizes an enlarged ionization chamber that has a cylindrical shape with an inside diameter at least 1 inch (2.54 cm), an outside diameter at least 1.1 inches (2.794 cm), an inside height at least 0.725 inch (1.8415 cm), and an outside at least 1 inch (2.54 cm). Moreover, the inner wall of the dosimeter's ionization chamber is lined with either a predetermined hydrogenous or non-hydrogenous material having different sensitivity to gamma ray and neutron exposure.

REFERENCES:
patent: 2648777 (1953-08-01), Landsverk
patent: 2793298 (1957-05-01), Landsverk
patent: 4306154 (1981-12-01), Williams, Jr. et al.
H. H. Rossi, "Status of Neutron Dosimetry", Nucleonics, vol. 10, No. 9, (. 1952) pp. 26-27.

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