A method for determining simultaneously the dose and the elapsed time since irradiation using TLDs.
Information about the time that has elapsed since an external radiation exposure is useful in order to determine the time of occurrence of an abnormal exposure in personal and accidental dosimetry is presented. This information can be obtained from certain irradiated thermoluminescent dosimeters. A computational method based on decay rates of thermoluminescence glow peaks has been used to estimate a range of suitable values of trap lifetimes of low temperature glow peaks. This provides a basis for the selection of an appropriate thermoluminescent material to assess not only the absorbed dose from a radiation exposure, but also the elapsed time. Experimental studies have been used to obtain additional information on decay rates as a function of energy, temperature and absorbed dose.
Furetta
C
C
CERN, Geneva, Switzerland.
Tuyn
J W
JW
Louis
F
F
Azorin-Nieto
J
J
Gutiérrez
A
A
Driscoll
C M
CM
D000059:Accidents; D006801:Humans; D008962:Models, Theoretical; D011829:Radiation Dosage; D013819:Thermoluminescent Dosimetry; D013997:Time Factors