Detector/dosimeter for gamma and microwave radiation

Details Detector/dosimeter for gamma and microwave radiation Detector/dosimeter for gamma and microwave radiation

1986-09-18

1988-10-18

Fields, Carolyn E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Optical change type

250390, 2504731, G01T 102, G01T 300

Patent

active

047790008

ABSTRACT:
A direct reading, self-powered detector and dosimeter for gamma rays, and other low LET radiation, and optionally microwaves, is described. A transparent elastic solid medium contains uniformly dispersed droplets of a very high vapor pressure detector liquid substantially immiscible with the elastic solid. It has been found possible to form stable droplets having a sufficiently high degree of superheat for their vaporization to be sensitive to lightly ionizing radiation such as gamma rays and even to microwave radiation. The droplets can be made stable to spontaneous vaporization, yet their explosive vaporization will be triggered by gamma or in some cases microwave radiation. The solid medium will retain a record of each droplet vaporized, the number being proportional to the dose of radiation. If desired the detector liquid vapors can be condensed or compressed into droplets again and the detector/dosimeter re-used.

REFERENCES:
patent: 4143274 (1979-03-01), Apfel
patent: 4350607 (1982-09-01), Apfel
patent: 4613758 (1986-09-01), Ing et al.

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