title: Evaluation of the performance of two LiF:Mg,Ti and LiF:Mg,Cu,P dosemeters for extremity monitoring.
abstract: In this paper, the results aimed at assessing the performance of two varieties of LiF detectors (LiF:Mg,Ti and LiF:Mg,Cu,P) in photon fields relatively to reproducibility, detection threshold and angular dependence as defined in the ISO 12794 standard are presented. The fading properties and the limit of detection were also investigated for both materials. The results suggest that both LiF varieties are well suited for extremity monitoring. However, better fading properties of LiF:Mg,Cu,P when compared with LiF:Mg,Ti, combined with previous results relatively to energy dependence suggests that LiF:Mg,Cu,P dosemeters are better suited for extremity monitoring.
authors.affiliation: Instituto Tecnológico e Nuclear, Unidade de Protecção e Segurança Radiológica, Estrada Nacional 10, 2686-953 Sacavém, Portugal.
authors.forename: L C
authors.initials: LC
authors.lastname: Freire
authors.forename: M F
authors.initials: MF
authors.lastname: Pereira
authors.forename: A M
authors.initials: AM
authors.lastname: Calado
authors.forename: L M
authors.initials: LM
authors.lastname: Santos
authors.forename: J V
authors.initials: JV
authors.lastname: Cardoso
authors.forename: J G
authors.initials: JG
authors.lastname: Alves
mesh_terms: D000465:Algorithms; D003300:Copper / Q000032:analysis; D005459:Fluorides / Q000032:analysis; D006801:Humans; D018020:Lithium Compounds / Q000032:analysis; D008274:Magnesium / Q000032:analysis; D008422:Materials Testing; D015233:Models, Statistical; D010758:Phosphorus / Q000032:analysis; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods / Q000592:standards*; D011835:Radiation Protection / Q000379:methods / Q000592:standards*; D011868:Radioisotopes / Q000032:analysis; D011874:Radiometry / Q000379:methods / Q000592:standards*; D015203:Reproducibility of Results; D014025:Titanium / Q000032:analysis
chemical_list: D018020:Lithium Compounds; D011868:Radioisotopes; C027651:lithium fluoride; D010758:Phosphorus; D003300:Copper; D014025:Titanium; D008274:Magnesium; D005459:Fluorides