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Grain size optimization in lyoluminescence dosimetry


, : Grain size optimization in lyoluminescence dosimetry. Applied Radiation & Isotopes 40(3): 243-246

Effect of grain-size and grain-size band on lyoluminescence (LL) response stability in mannose with storage is investigated. Enhancement of response on storage for 30 days was observed at doses ranging from 10 to 1000 Gy. Experiments showed that response variation with storage is minimized by a judicious choice of grain size band width. The use of a fixed time over which the LL yield is integrated is shown to be inadequate. Integration over a variable period of time during which the signal has decayed to 1/10th of its maximum value is suggested.

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