Abstract
Some physico-technical parameters of the self-calibrated alanine/EPR dosimeters are described. Principally, this new type of solid state/EPR dosimeter contains radiation sensitive diamagnetic material (in the present case, alanine), some quantity of EPR active, but radiation insensitive, substance (for example, Mn2+/MgO) playing roles of an internal standard and a binding material. Thus with this dosimeter the EPR spectra of alanine and the internal standard Mn2+ are recorded simultaneously and the dose response is represented as a ratio of EPR signal intensities of alanine versus Mn2+ as a function of absorbed dose. As a result, the data of the present study have shown that there is practically no interference of the dosimeter EPR response (expressed as the ratio I alanine/I Mn) from the way of preparation (homogeneity), behavior after irradiation (fading of EPR signals with time, influence of different meteorological conditions) as well as specific spectrometer setting conditions. These dosimeters show satisfactory reproducibility of preparation and reading as well as stability on keeping. Thus, fulfilling the described physico-technical data of this type of dosimeters, the reproducibility of the readings is significantly improved particularly when intercomparison among different laboratories is performed. This conclusion is confirmed by independent studies of the described self-calibrated alanine/EPR dosimeters in several laboratories in Europe. Results of which are also reported.
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W. W. Bradshaw, D. G. Cadena, G. W. Crawford, H. A. W. Spetzler, Radiat. Res., 17 (1962) 11.
F. Bermann, H. De Choudence, S. Descours, in: Proc. Symp. on Advances in Physical and Biological Radiation Detectors Vienna, 1970, STI/PUB/1269, IAEA, Vienna, 1971, p. 311.
D. F. Regulla, U. Deffner, Intern. J. Appl. Radiation Isotopes, 33 (1982) 1101.
A. Bartolotta, F. L. Indovina, S. Onori, A. Rosati, Radiat. Prot. Dosim., 9 (1984) 277.
J. W. Hansen, K. J. Olsen, M. Wille, Radiat. Prot. Dosim., 19 (1987) 43.
T. Kojima, R. Tanaka, Y. Morita, T. Seguchi, Appl. Radiation Isotopes, 37 (1986) 517.
W. L. McLaughlin, Radiat. Prot. Dosim., 47 (1993) 255.
T. Kojima, Y. Haruyama, H. Tachibana, R. Tanaka, Appl. Radiation Isotopes, 43 (1992) 863.
F. Cononckx, H. Schonbacher, Appl. Radiation Isotopes, 44 (1993) 67.
E. H. Hasskell, R. B. Hayes, G. H. Kenner, Radiat. Prot. Dosim., 77 (1998) 43.
N. D. Yordanov, Appl. Magn. Res., 6 (1994) 241.
N. D. Yordanov, B. Genova, Anal. Chim. Acta, 353 (1997) 99.
N. D. Yordanov, V. Gancheva, Patent 344/99.
N. D. Yordanov, V. Gancheva, J. Radioanal. Nucl. Chem., 240 (1999) 215.
N. D. Yordanov, V. Gancheva, in: Proc. Symp. on Techniques for High Dose Dosimetry in Industry, Agriculture and Medicine, IAEA-TECDOC-1070, March 1999, p. 37.
N. D. Yordanov, V. Gancheva, V. Pelova, J. Radioanal. Nucl. Chem., 240 (1999) 619.
J. A. Weil, J. R. Bolton, J. E. Wertz, in: Electron Paramagnetic Resonance: Elementary Theory and Practical Application, Wiley Intersci., New York, 1994.
N. D. Yordanov, P. Slavov, Appl. Mag. Res., 10 (1996) 351.
V. Yu. Nagy, M. Desrosiers, Appl. Radiation Isotopes, 47 (1996) 789.
B. Cieselski, L. Wielopolski, Radiat. Res., 140 (1994) 105.
L. Wielopolski, M. Maryanski, B. Cieselski, A. Farman, L. E. Reinstein, A. G. Meek, Med. Phys., 14 (1987) 646.
F. Callens, K. Van Leare, W. Mondelaas, P. Matthys, E. Boesman, Appl. Radiation Isotopes, 47 (1996) 1241.
E. Sagstuen, E. O. Hole, S. R. Hamgedal, W. H. Nelson, J. Phys. Chem., A101 (1997) 9763.
P. H. Sharpe, K. Rajendan, J. P. Sephton, Appl. Radiation Isotopes, 47 (1996) 1171.
E. H. Haskell, R. B. Hayer, G. H. Kenner, Radiat. Meas., 27 (1997) 325.
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Yordanov, N.D., Gancheva, V. Some Physico-Technical Aspects of the New Generation of Self-Calibrated Alanine/EPR Dosimeter and Results from the International Intercomparison trial. Journal of Radioanalytical and Nuclear Chemistry 245, 323–328 (2000). https://doi.org/10.1023/A:1006710421488
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DOI: https://doi.org/10.1023/A:1006710421488