Response of thermoluminescent lithium fluoride (TLD-100) to photon beams of 275, 400, 500, 600, 730, 900, 1200, 1500, and 2500 eV.
LiF:Mg,Ti (TLD-100) extruded ribbons and cleaved crystals were exposed to monoenergetic photons of 275-2550 eV energy to determine their potential usefulness as radiation dosimeters for radiobiology experiments at these energies. The radiation source was synchrotron radiation from the 1 GeV electron storage ring, Aladdin. The authors report TLD response and glow curves for He- and air-annealed dosimeters. The undesirable effects of air annealing increase with decreasing photon penetration in the dosimeter. Under certain experimental conditions, UV radiation produced anomalous bleaching of high-temperature traps. The crystals and the chips presented a supralinear response, Supralinearity factors were determined to be of the order of 1.5 for crystals, and 1.7 for the chips. The authors' results indicate that TLDs are a reliable means to monitor the total energy deposited in irradiated cells and are now used routinely for radiobiology cell irradiations.
Carrillo
R E
RE
Department of Medical Physics, University of Wisconsin, Madison, WI 53706, USA.
Pearson
D W
DW
DeLuca
P M
PM
MacKay
J F
JF
Lagally
M G
MG
D055592:Biophysical Phenomena; D001703:Biophysics; D004734:Energy Metabolism; D005459:Fluorides / Q000737:chemistry*; D018020:Lithium Compounds / Q000737:chemistry*; D017785:Photons; D011829:Radiation Dosage; D011874:Radiometry; D013819:Thermoluminescent Dosimetry
D018020:Lithium Compounds; C027651:lithium fluoride; D005459:Fluorides