Low temperature radioluminescence of LiF:Mg,Cu,P.
Low temperature radioluminescence spectra of LiF, variously co-doped with Mg, Cu and P, show highly unusual temperature dependencies which resemble thermoluminescence data. The signals include intense peaks and a relatively weak continuous background. One peak occurs below 30 K, together with a major peak near 125 K. The signals are highly sensitive to the dopants and slightly sensitive to X-ray dose rate. The role of donor acceptor pairs and the perturbations from intrinsic defects formed by ionisation can be used to describe all the observations. The 290 nm emission band is linked to H center annealing.
Kurt
K
K
Department of Physics, Faculty of Art and Science, University of Mersin 33343tr, Turkey. kasimkurt@mersin.edu.tr
Mathur
V K
VK
McKeever
S W S
SW
Townsend
P D
PD
Valberg
L
L
D003300:Copper / Q000737:chemistry / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005459:Fluorides / Q000737:chemistry* / Q000528:radiation effects*; D018020:Lithium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D008274:Magnesium / Q000737:chemistry / Q000528:radiation effects; D008422:Materials Testing; D010758:Phosphorus / Q000737:chemistry / Q000528:radiation effects; D011829:Radiation Dosage; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013696:Temperature; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods*
D018020:Lithium Compounds; C027651:lithium fluoride; D010758:Phosphorus; D003300:Copper; D008274:Magnesium; D005459:Fluorides