Dynamic calibration of an aerosol monitor with natural and artificial alpha-emitters

Author

Klett, A. ; Reuter, W. ; De Mey, L.

Author_Institution

EG&G Berthold, Bad Wildbad, Germany

Volume

44

Issue

3

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

804

Lastpage

805

Abstract

Measurement of airborne artificial α-activity concentrations in the presence of naturally occurring radionuclides requires reliable subtraction of the natural contribution and precise calibration. Therefore, the commercially available aerosol monitor LB150D-R was calibrated dynamically at the IPSN/CEA in Saclay, France. Aerosols with activity median aerodynamic diameters of 0.4 μm and 4 μm labelled with ²³⁹Pu were generated and isokinetically sampled by the aerosol monitor. The response to ²³⁹Pu activity concentrations and detection limits in the presence of radon progeny were determined. The retention of aerosols and their distribution on the filter was investigated using fluoresceine labelled aerosols

Keywords

aerosols; alpha-particle detection; calibration; proportional counters; radiation monitoring; radioactivity measurement; 0.4 mum; 4 mum; ²³⁹Pu; LB150D-R; Pu; activity median aerodynamic diameters; aerosol monitor; airborne artificial α-activity concentrations; dynamic calibration; filter; fluoresceine labelled aerosols; naturally occurring radionuclides; radon progeny; Aerodynamics; Aerosols; Calibration; Filters; Instruments; Manufacturing; Monitoring; Nuclear power generation; Radiation detectors; Sampling methods;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.603756

Filename

603756