Abstract
The most important materials used in thermoluminescence dosimetry (TLD) are LiF, CaF2 and CaSO4 with various dopants. LiF: Mg, Ti is almost tissue equivalent and therefore the most applied TLD-material in personnel and medical dosimetry. CaF2: Dy offers the highest sensitivity of the above mentioned materials and is used in environmental and lowdose dosimetry. CaSO4: Dy can easily be labor made and is the cheapest phosphor. As the effective atomic numbers of CaF2 and CaSO4 differ markedly from that of tissue material the response curve of both materials must be carefully determined in the energy range dominated by the photoeffect. The energy responses of these three listed phosphors were determined by means of a Bragg monochromator, filtered radiation from a gold target bombarded by electrons from a Van de Graaff accelerator, the radiation of a137Cs-source (662 keV) and a60Co-source (1.17, 1.33 MeV). The response-energy dependence of the three dosimeters shows maxima at 35 keV (LiF and CaF2) and 40 keV (CaSO4).
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
P. Krepler, C. Havranek andN. Vana, Röntgenpraxis,29, (12) 271, 1976.
P. Krepler, N. Vana andC. Havranek, Pediat. Radiol.,5, 231, 1977.
N. Vana, R. Waneck, G. Lechner, Strahlenbelastung des Patienten bei angiographischen Untersuchungen unter Verwendung Seltener-Erden-Folien (SEF), in O. Messerschmidt und F. Olbert “Strahlenschutz in Forschung und Praxis”, Band XX, 98, 1980.
N. Vana andH. Aiginger, Acta Phys. Hung., this issue, p. 333.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vana, N., Aiginger, H., Erath, W. et al. Measurement of the energy response of LiF—, CaF2— and CaSO4—TL-dosimeters. Acta Physica 52, 341–345 (1982). https://doi.org/10.1007/BF03158865
Issue Date:
DOI: https://doi.org/10.1007/BF03158865