title: Studies on energy response of newly developed LiF:Mg,Cu,P TL chips with additional PbO doping.
abstract: One of the most important characteristics of thermoluminescent detectors, if they are intended to be used in a wide range of energies, is their energy response. A comparison of the energy characteristics of the newly developed LiF:Mg,Cu,P chips with additional PbO doping (GR-200E) against GR-200A LiF:Mg,Cu,P was attempted to improve further the accuracy of personal dosimetry. Hp(10) energy response of GR-200E is quite different from that of GR-200A. For GR-200E, the anomalous energy response can be eliminated and the over-response to low-energy photons should be filtered properly. The GR-200E under the copper filter provided results within 4 % with respect to the conventional quantity value over the energy range from 65 to 1250 keV. The ratio of the Hp(10) response of the Cu-covered filters for GR-200A to that of those covered with plastic for GR-200E is a very good tool for identifying the radiation quality in the range studied. The accuracy in the dose evaluated from TLD measurements can be greatly increased.
authors: State Key Laboratory of NBC Protection for Civilian, PO Box 1044, Ext. 201, Beijing 102205, P.R. China Solid Dosimetric Detector and Method Laboratory, PO Box 1044, Ext. 204, Beijing 102205, P.R. China kaiyongtang@yahoo.com.
authors: K
authors: K
authors: Tang
authors: Solid Dosimetric Detector and Method Laboratory, PO Box 1044, Ext. 204, Beijing 102205, P.R. China.
authors: H
authors: H
authors: Fan
authors: Solid Dosimetric Detector and Method Laboratory, PO Box 1044, Ext. 204, Beijing 102205, P.R. China.
authors: H
authors: H
authors: Cui
authors: Solid Dosimetric Detector and Method Laboratory, PO Box 1044, Ext. 204, Beijing 102205, P.R. China.
authors: H
authors: H
authors: Zhu
authors: Solid Dosimetric Detector and Method Laboratory, PO Box 1044, Ext. 204, Beijing 102205, P.R. China.
authors: Z
authors: Z
authors: Liu
mesh_terms: D004307:Dose-Response Relationship, Radiation; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005459:Fluorides / Q000737:chemistry* / Q000528:radiation effects*; D007854:Lead / Q000737:chemistry* / Q000528:radiation effects*; D018020:Lithium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D008422:Materials Testing; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation*
chemical_list: D018020:Lithium Compounds; D010087:Oxides; C027651:lithium fluoride; D007854:Lead; C047365:lead oxide; D005459:Fluorides