title: The applicability of the PTTL dose re-analysis method to the Harshaw LiF:Mg,Cu,P material.
abstract: The phototransferred thermoluminescence (PTTL) technique is applied to the Harshaw LiF:Mg,Cu,P material. It is demonstrated that using 254-nm UV light, dose levels as low as 0.2 mGy can be re-estimated. The PTTL efficiency was found to be ∼ 6 % in the dose range of 0.2 mGy-1 Gy, and it appears to be dose-independent. This implies that a simple calibration factor could be applied to the PTTL data for the re-estimation of dose levels. It was demonstrated that with a proper choice of the TL readout parameters, and the UV-light irradiation conditions, dose levels that are relevant to personal or environmental dosimetry can be re-estimated.
authors: Department of Radiation Medicine, Georgetown University Medical Center, 3970 Reservoir Road NW, Washington, DC 20057, USA. moscovim@georgetown.edu
authors: M
authors: M
authors: Moscovitch
authors: L
authors: L
authors: Benevides
authors: A
authors: A
authors: Romanyukha
authors: F
authors: F
authors: Hull
authors: M
authors: M
authors: Duffy
authors: S
authors: S
authors: Voss
authors: K J
authors: KJ
authors: Velbeck
authors: I
authors: I
authors: Nita
authors: J E
authors: JE
authors: Rotunda
mesh_terms: D002138:Calibration; D003300:Copper / Q000032:analysis*; D004307:Dose-Response Relationship, Radiation; D004784:Environmental Monitoring / Q000379:methods; D005459:Fluorides / Q000032:analysis*; D006801:Humans; D018020:Lithium Compounds / Q000032:analysis*; D008274:Magnesium / Q000032:analysis*; D010758:Phosphorus / Q000032:analysis*; D011835:Radiation Protection / Q000379:methods; D011874:Radiometry / Q000379:methods; D015203:Reproducibility of Results; D013819:Thermoluminescent Dosimetry / Q000379:methods / Q000592:standards*; D014466:Ultraviolet Rays
chemical_list: D018020:Lithium Compounds; C027651:lithium fluoride; D010758:Phosphorus; D003300:Copper; D008274:Magnesium; D005459:Fluorides