Radon daughter dosimeter

Details Radon daughter dosimeter Radon daughter dosimeter

1976-03-25

1977-10-25

Dixon, Harold A.

Radiant energy

Geological testing or irradiation

250255, 250364, 250370, G01V 500

Patent

active

040557626

ABSTRACT:
A portable radon daughter dosimeter unit used to measure Radon gas alpha daughters in ambient air. These measurements can then be related to preselected preestablished standards contained in a remote central readout unit. The dosimeter unit is adapted to be worn by an operator in areas having alpha particle radiation such as in uranium mines. Within the dosimeter is a detector head housing having a filter head and a solid state surface barrier radiation detector; an air pump to get air to the detector head; a self contained portable power supply for the unit; and electronic circuitry to process detected charged electrons from the detector head to convert and count their pulses representatives of two alpha radon emitter daughters. These counted pulses are in binary form and are sent to a readout unit where a numerical readout displays the result in terms of working level-hours.

REFERENCES:
patent: 2878391 (1959-03-01), Campbell
patent: 2892091 (1959-06-01), Sawle
patent: 3056886 (1962-10-01), Glaude et al.
patent: 3665194 (1972-05-01), Alter
patent: 3914602 (1975-10-01), Goldstein
patent: 3968371 (1976-07-01), Greendale

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