Continuous monitoring radon detector
First Claim
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1. A device for detection of radon or radon daughters in ambient air comprising:
- a) an electrical field comprising two hemispherical walls facing each other, with a gap therebetween through which ambient air diffuses, said walls forming a sensitive volume; and
b) a positively-charged photodiode in communication with said sensitive volume for the detection of alpha emissions from radon or radon progeny electrically isolated within said electrical field.
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Abstract
A device for the continuous monitoring in situ of radon concentration in ambient air, and the simultaneous measurement of working level (WL) values of the radon daughters in ambient air. The device comprises an electrical field formed of two hemispherical walls facing each other with a gap therebetween allowing ambient air to diffuse through. The area between the walls is considered a “sensitive volume”. A positively-charged photodiode is disposed in communication with the sensitive volume for the detection of alpha emissions from radon or radon progeny electrically isolated within said electrical field.
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Citations
18 Claims
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1. A device for detection of radon or radon daughters in ambient air comprising:
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a) an electrical field comprising two hemispherical walls facing each other, with a gap therebetween through which ambient air diffuses, said walls forming a sensitive volume; and
b) a positively-charged photodiode in communication with said sensitive volume for the detection of alpha emissions from radon or radon progeny electrically isolated within said electrical field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification