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Radiation Protection Dosimetry 66:53-56 (1996)
© 1996 Oxford University Press
Low Dose Personal Dosimetry by Using Commercial LiF Detectors
The detection limit of commercial LiF:Mg,Ti detectors can be strongly decreased by the chemical 'background elimination treatment' (BET method) of the detectors before readout. This procedure eliminates the residual chemiluminescence resulting in a better signal-to-noise ratio. Its use is of practical benefit in various dosimetric tasks. In gamma dosimetry the µGy dose region becomes measurable, and at higher dose rates a strong decrease of the necessary exposure time is possible. In neutron (albedo) dosimetry a lower detection limit is achievable which is remarkable considering the ICRP recommendations. Neutron and mixed neutron-gamma field dosimetry based on the accurate measurement of the high temperature peaks also becomes of practical importance after eliminating the high temperature background.
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REFERENCES J. ICRU, December 1, 2006; 6(2): 47 - 50. [Full Text] [PDF] |
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