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pro’s and con’s of ThermoLuminescence Dosimetry (TLD)
with LiF as phospor
pro’s
- small dimensions
- little volume averaging
- suited for anthropomorphic phantoms
- powder/thin films: measurements in
build-up or transition regions
- LiF: small energy dependence in MV range
- large dose range: < mGy
> kGy
- dose-rate independent
- re-usable (in contrast to film)
con’s
- high accuracy (1-2%) requires careful
procedure and skilled operator
- single point
- batch of chips: distribution of
sensitivities
- fading
- reading not directly available
- labor/reading
- no record (in contrast to film)