CaF2 : Tm (TLD-300) thermoluminescent response and glow curve induced by gamma-rays and ions
Por:
Massillon-JL, G, Gamboa-DeBuen, I, Buenfil, AE, Monroy-Rodriguez, MA, Brandan, ME
Publicada:
1 mar 2008
Resumen:
The thermoluminescent response of CaF2:Tm after exposure to (CO)-C-60 gamma-rays at doses from 0.44 Gy to 8.75 kGy and to low fluences (10(5)similar to 10(8) cm(-2)) of 25 and 40 MeV H-1, 75 and 120 MeV He-3. 180, 300 and 480 MeV C-12 400 MeV O-16 and 800 MeV Ne-20 ion beams, spanning a LET interval up to about 500 keV/mu m, has been investigated. A careful deconvolution analysis of the glow curve has been performed in order to obtain information for individual peaks. The region of linear response to gammas extends up to approximate to 1 Gy, while that for ions includes the complete dose interval covered in the study (up to approximate to 1.3 Gy). The ratio between the high- and low-temperature structures in the glow curve is correlated with radiation quality and dependence on ion identity, besides LET, is strongly suggested by the data. The thermoluminescent efficiency to ion exposure, with respect to irradiation with Co-60 gamma-rays, shows a different dependence on LET for each of t
Filiaciones:
Massillon-JL, G:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
Gamboa-DeBuen, I:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Buenfil, AE:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
Monroy-Rodriguez, MA:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
Brandan, ME:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
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