Radon progeny detector for measuring attached and unattached fra

Details Radon progeny detector for measuring attached and unattached fra Radon progeny detector for measuring attached and unattached fra

1988-04-22

1989-07-11

Fields, Carolyn E.

Radiant energy

Fluent material containment, support or transfer means

With irradiating source or radiating fluent material

250253, 250255, 2504721, G01T 102

Patent

active

048475033

ABSTRACT:
A radon progeny detector for measuring the concentration of attached and unattached factions in an atmosphere. A laminar flow of air is drawn sequentially through a diffusion battery and a particle trap. Unattached progeny having a particle size of 10 nm or less are captured upon the plates of the diffusion battery. Attached progeny is passed into the trap where the attached progeny is captured by a filter. Film strips for recording tracks produced by alpha particles emitted by the progeny are mounted in both the diffusion battery and the particle trap to record the concentrations of both fractions.

REFERENCES:
patent: 4570494 (1986-02-01), Dunn et al.

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