Title :
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
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;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591479
