Apparatus for measuring the time-integrated volume specific acti

Details Apparatus for measuring the time-integrated volume specific acti Apparatus for measuring the time-integrated volume specific acti

1992-01-02

1993-07-06

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

With sampling

250435, G01T 704

Patent

active

052256731

ABSTRACT:
An apparatus for determining the time-integrated volume specific activities of radon and thoron daughters without the participation of an operator during the measurement includes an air pump connected to a perpendicularly disposed pipe with plugged ends provided with two longitudinal rectangular orifices which are in contact with two endless aerosol filter bands which are rotated by a clock mechanism at periods of 1 hour and 12 hours respectively. Radiation detectors are disposed in seats of a cylindrical support while the latter is disposed within a protective housing.

REFERENCES:
patent: 4013888 (1977-03-01), Macias et al.
patent: 4701621 (1987-10-01), Kaiser et al.

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