Device for analyzing the activity of a radioactive aerosol as a

Details Device for analyzing the activity of a radioactive aerosol as a Device for analyzing the activity of a radioactive aerosol as a

1979-07-27

1981-07-07

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250385, 250435, G01T 118

Patent

active

042776821

ABSTRACT:
Device for analyzing the activity of a radioactive aerosol as a function of the grain size distribution of its particles of the type comprising a tight enclosure, means for circulating the aerosol through said enclosure and within the latter, a plurality of stages for collecting aerosol particles with a given grain size, each of the stages comprising an aerosol injection plate perforated by at least one calibrated opening and a collection plate for particles of a given grain size, wherein it comprises means for establishing an electric field between the injection and collection plates of each of the stages with a view to establishing an ionization current through a stage during the disintegration of the particles collected in the latter and means for measuring the ionization current of one of the said stages.

REFERENCES:
patent: 2957084 (1960-10-01), Marr et al.
patent: 4013888 (1977-03-01), Macias et al.

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