Monitor of the concentration of particles of dense radioactive m

Details Monitor of the concentration of particles of dense radioactive m Monitor of the concentration of particles of dense radioactive m

1978-04-04

1979-01-02

Kreitman, Stephen A.

Radiant energy

Fluent material containment, support or transfer means

With irradiating source or radiating fluent material

73 28, G01T 116, G01N 1506

Patent

active

041328949

ABSTRACT:
A monitor of the concentration of particles of radioactive materials such as plutonium oxide in diameters as small as 1/2 micron includes in combination a first stage comprising a plurality of virtual impactors, a second stage comprising a further plurality of virtual impactors, a collector for concentrating particulate material, a radiation detector disposed near the collector to respond to radiation from collected material and means for moving a stream of air, possibly containing particulate contaminants, through the apparatus.

REFERENCES:
patent: 2879664 (1959-03-01), Tait
patent: 3555278 (1971-01-01), Schroeder
patent: 3795135 (1974-03-01), Andersen
Soole; "The Casella Mk. 2 Cascade Impactor: A Comparison of Observed With Calculated Stage Mass Median Diameters", Aerosol Science, vol. 2, No. 3, pp. 281-288, 1971.

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