title: Ultraviolet response of CaF2:Tm with high-temperature treatment.
abstract: The thermoluminescent (TL) response to ultraviolet irradiation of CaF2:Tm phosphor is affected by pre-irradiation high-temperature treatment. The experimental results indicate that the maximum intrinsic TL output is about 2000 times higher for 1000 degrees C treatment than when not treated. TL stability for this phosphor occurs when the optimum temperature range and time are 800 degrees to 900 degrees C and 1 h. However, the intrinsic sensitivity is only about 50 times higher than with no treatment, which limits the application of this phosphor as a personal UV dosimeter.
authors.affiliation: Department of Nuclear Engineering, National Tsing Hua University, Taiwan, Republic of China.
authors.forename: S H
authors.initials: SH
authors.lastname: Li
authors.forename: P C
authors.initials: PC
authors.lastname: Hsu
authors.forename: P S
authors.initials: PS
authors.lastname: Weng
mesh_terms: D002124:Calcium Fluoride; D006358:Hot Temperature; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation*; D013932:Thulium; D014466:Ultraviolet Rays
chemical_list: D013932:Thulium; D002124:Calcium Fluoride