title: The thermoluminescence efficiency of Li2B4O7:Cu and of CaSO4:Tm for photons.
abstract: The intrinsic thermoluminescence (TL) efficiency of a TL detector relates the absorbed dose in the detector material to the light yield observed upon evaluation. Knowledge of the TL efficiency is of interest when performing numerical simulations of detector response, where only absorbed dose can be predicted. Here, the experimental determination of TL efficiency for calcium sulphate (CaSO(4):Tm) and lithium borate (Li(2)B(4)O(7):Cu) is reported. These materials are widely used in Panasonic dosemeter badges. The results of the study are in agreement with predictions from track structure theory and microdosimetry, relating an enhanced light yield at low X-ray energies to supralinear behaviour of the TL phosphor.
authors.affiliation: Radiation Protection Group, CERN, CH-1211 Genève 23, Switzerland. thomas.otto@cern.ch
authors.forename: Th
authors.initials: T
authors.lastname: Otto
authors.forename: L
authors.initials: L
authors.lastname: Gindraux
authors.forename: M
authors.initials: M
authors.lastname: Strasser
mesh_terms: D000465:Algorithms; D001895:Boron / Q000032:analysis*; D002133:Calcium Sulfate / Q000032:analysis*; D002588:Cesium Radioisotopes / Q000032:analysis; D003037:Cobalt Radioisotopes / Q000032:analysis; D003198:Computer Simulation; D003300:Copper / Q000032:analysis*; D004867:Equipment Design; D006801:Humans; D008094:Lithium / Q000032:analysis*; D008422:Materials Testing; D009010:Monte Carlo Method; D010100:Oxygen / Q000032:analysis*; D017785:Photons; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods; D013932:Thulium / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D003037:Cobalt Radioisotopes; D003300:Copper; D013932:Thulium; D008094:Lithium; D001895:Boron; D010100:Oxygen; D002133:Calcium Sulfate