Calibration of Radon-222 Reference Instrument in Sweden.
A simple procedure to calibrate and characterize a recently developed radon-222 reference instrument is described. The system, which is now used as the official national Swedish reference, is quick and easy to use. Systematic as well as random errors are smaller than in an earlier system and compare well with other systems, as has been shown in a number of international intercomparison measurements.
National Institute of Radiation Protection, Stockholm, Sweden.
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R
Falk
National Institute of Radiation Protection, Stockholm, Sweden.
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H
Möre
National Institute of Radiation Protection, Stockholm, Sweden.
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L
Nyblom
alpha-spectrometry; calibration; intercomparison; radon measurement; reference instrument; surface barrier detector