title: A method of identification of abnormal glow curves in individual monitoring using CaSO4:Dy teflon TLD and hot gas reader.
abstract: In the present study, a method of identifying abnormal glow curves to electronically screen the glow curves of TL readout is presented. The method is based on the fact that the shape of an abnormal glow curve differs from the shape of a normal one. A few criteria for defining the normal shape of glow curves are arrived at by analysing the glow curves of dosemeters exposed to various doses in laboratory conditions and read at different elapsed time post irradiation. About 300 glow curves of dosemeters used for monthly monitoring were analysed as per these criteria and the effectiveness of the method is observed for total counts as low as 150 µSv equivalent.
authors.affiliation: Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. smprpad@rediffmail.com
authors.forename: S M
authors.initials: SM
authors.lastname: Pradhan
authors.forename: C
authors.initials: C
authors.lastname: Sneha
authors.forename: M M
authors.initials: MM
authors.lastname: Adtani
mesh_terms: D002133:Calcium Sulfate / Q000737:chemistry; D004419:Dysprosium / Q000737:chemistry; D005459:Fluorides / Q000032:analysis; D005740:Gases; D006358:Hot Temperature; D006801:Humans; D018020:Lithium Compounds / Q000032:analysis; D011138:Polytetrafluoroethylene / Q000032:analysis; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D013696:Temperature; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods; D014466:Ultraviolet Rays
chemical_list: D005740:Gases; D018020:Lithium Compounds; C027651:lithium fluoride; D004419:Dysprosium; D011138:Polytetrafluoroethylene; D005459:Fluorides; D002133:Calcium Sulfate