Comparison of time effects, decision limit and residual signal in Harshaw LiF:Mg,Ti and LiF:Mg,Cu,P.
The personal dosimetry service of the UK Health Protection Agency--formerly of the National Radiological Protection Board (NRPB)--is currently commissioning a body thermoluminescence dosemeter (TLD) system based on the use of Harshaw 8800 readers and two-element cards. As part of the process, studies have been carried out into the long-term time dependence of response, the limit of detection and the magnitude of the signal remaining after recommended processing. TLD cards containing both conventional lithium fluoride (LiF:Mg,Ti) and the high-sensitivity material LiF:Mg,Cu,P were available, thus allowing a comparison between the two types of material.
Gilvin
P J
PJ
Health Protection Agency, Chilton, Didcot, Oxon OX11 0RQ, UK.
D004056:Differential Threshold; D004781:Environmental Exposure / Q000032:analysis*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005459:Fluorides / Q000737:chemistry* / Q000528:radiation effects*; D038622:Internationality; D007700:Kinetics; D018020:Lithium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D008422:Materials Testing; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011835:Radiation Protection / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D018020:Lithium Compounds; C027651:lithium fluoride; D005459:Fluorides