Dynamical 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

2

fYear

1996

Firstpage

875

Abstract

Measurement of airborne artificial activity concentrations in the presence of natural radionuclides requires reliable subtraction of the natural contribution and precise calibration. Therefore the commercially available aerosol monitor LB 150D-R was dynamically calibrated at the ICARE facility of the IPSN/CEA in Saclay, France. Aerosols labelled with ²³⁹Pu with mean aerodynamic diameter of 0.4 μm and 4 μm had been generated and isokinetically sampled by the aerosol monitor. The response to ²³⁹Pu activity concentrations and detection limits in the presence of Radon progeny had been determined. The retention of aerosols and their distribution on the filter was investigated using fluoresceine labelled aerosols

Keywords

aerosols; air pollution measurement; calibration; radiation monitoring; radioactive pollution; ²³⁹Pu; LB 150D-R; Radon progeny; aerosol monitor; airborne artificial activity concentrations; alpha-emitters; dynamical calibration; fluoresceine labelled aerosols; natural radionuclides; Aerodynamics; Aerosols; Calibration; Counting circuits; Filters; Fluid flow measurement; Radiation detectors; Radiation monitoring; Sampling methods; Solids;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.591479

Filename

591479