TY - JOUR
T1 - Study of the TL response of LiF:Mg,Ti to 3 and 7.5 MeV helium ions
T2 - Measurements and interpretation in terms of the track interaction model
AU - Rodríguez-Villafuerte, M.
AU - Buenfil, A. E.
AU - Gamboa-Debuen, I.
AU - Ruiz-Trejo, C.
AU - Brandan, M. E.
AU - Yossian, D.
AU - Satinger, D.
AU - Horowitz, Y. S.
N1 - Funding Information:
This work has been partially supported by DGAPA-UNAM IN100396 and CONACYT 0077P-E. We acknowledge CONACYT grants F036-E9109 and G0010-E that support the Pelletron facility. The authors thank the technical collaboration of K. López and S. Ramos.
PY - 2000/3/1
Y1 - 2000/3/1
N2 - We have measured the LiF:Mg,Ti (TLD-100) thermoluminescent response, efficiency and supralinearity, to 3 and 7.5 MeV helium ions in the fluence interval between 6×107 to 1.5×1011 cm-2. Ion irradiations were performed using a flux of elastically scattered ions from a thin gold target. The measured efficiencies with respect to 60Co γ-rays are equal to 0.074 and 0.174 at 3 and 7.5 MeV, respectively, for the response of peak 5. The supralinearity functions for peaks 4, 5, 6a, 6b, 7, 8, 9 and the total TL signal indicate that supralinearity is an increasing function of energy and that it increases with peak temperature. The data for peaks 5, 8 and 9 have been successfully described by Monte Carlo simulations of the track interaction model. The fitted parameters show that peak 5 displays a special behaviour which requires the use of a much larger effective track radius than the higher temperature peaks.
AB - We have measured the LiF:Mg,Ti (TLD-100) thermoluminescent response, efficiency and supralinearity, to 3 and 7.5 MeV helium ions in the fluence interval between 6×107 to 1.5×1011 cm-2. Ion irradiations were performed using a flux of elastically scattered ions from a thin gold target. The measured efficiencies with respect to 60Co γ-rays are equal to 0.074 and 0.174 at 3 and 7.5 MeV, respectively, for the response of peak 5. The supralinearity functions for peaks 4, 5, 6a, 6b, 7, 8, 9 and the total TL signal indicate that supralinearity is an increasing function of energy and that it increases with peak temperature. The data for peaks 5, 8 and 9 have been successfully described by Monte Carlo simulations of the track interaction model. The fitted parameters show that peak 5 displays a special behaviour which requires the use of a much larger effective track radius than the higher temperature peaks.
UR - http://www.scopus.com/inward/record.url?scp=0343628897&partnerID=8YFLogxK
U2 - 10.1016/S0168-583X(99)00617-5
DO - 10.1016/S0168-583X(99)00617-5
M3 - Article
AN - SCOPUS:0343628897
SN - 0168-583X
VL - 160
SP - 377
EP - 386
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 3
ER -