TY - JOUR
T1 - The effect of thermal annealing on defect structure and thermoluminescence in LiF:Mg,Cu,P
AU - Mahajna, S.
AU - Yossian, D.
AU - Horowitz, Y. S.
PY - 1995/1/1
Y1 - 1995/1/1
N2 - We have studied the behavior of the glow peaks in the thermoluminescence of LiF:Mg,Cu,P as a function of pre-irradiation annealing temperature in the range 80 to 170°C, and as a function of cooling rate following the 240°C/10 min anneal used for standardization in dosimetric procedures. The intensities of the major peaks in LiF:Mg,Cu,P (as well as in LiF:Mg,Ti-the current industrial standard) seem to be determined by the dynamics of clustering of (Mg2+-Livac) dipoles to dimers, trimers and a precipitate phase. The intensities of the thermal interactions, however, seem to be somewhat reduced in LiF:Mg,Cu,P compared to LiF:Mg,Ti. In addition, it seems plausible that phosphorus takes the role of titanium in LiF:Mg,Cu,P in the formation of a trapping center/recombination center spatially correlated complex.
AB - We have studied the behavior of the glow peaks in the thermoluminescence of LiF:Mg,Cu,P as a function of pre-irradiation annealing temperature in the range 80 to 170°C, and as a function of cooling rate following the 240°C/10 min anneal used for standardization in dosimetric procedures. The intensities of the major peaks in LiF:Mg,Cu,P (as well as in LiF:Mg,Ti-the current industrial standard) seem to be determined by the dynamics of clustering of (Mg2+-Livac) dipoles to dimers, trimers and a precipitate phase. The intensities of the thermal interactions, however, seem to be somewhat reduced in LiF:Mg,Cu,P compared to LiF:Mg,Ti. In addition, it seems plausible that phosphorus takes the role of titanium in LiF:Mg,Cu,P in the formation of a trapping center/recombination center spatially correlated complex.
UR - http://www.scopus.com/inward/record.url?scp=0029388088&partnerID=8YFLogxK
U2 - 10.1016/1350-4487(95)00014-6
DO - 10.1016/1350-4487(95)00014-6
M3 - Article
AN - SCOPUS:0029388088
SN - 1350-4487
VL - 24
SP - 395
EP - 400
JO - Radiation Measurements
JF - Radiation Measurements
IS - 4
ER -