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Gamma spectrum analysis for environmental nuclides

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Języki publikacji
EN
Abstrakty
EN
This paper is related to problems concerning thermoluminescence (TL) dating procedures. In our TL dating laboratory the annual dose rates are determined from the high-resolution gamma spectrometry measurements. For spectral investigations a Canberra spectrometer with the HPGe detector and Marinelli geometry (0.5 l capacity) with a shield is used. The method for spectral analysis of radioactivity is based on the Sampo90 computer program. The results of deconvolution of composite gamma-emission lines with strongly overlapping peaks are presented in detail. The typical peak table of environmental samples, which is used as a reference table in our dating procedure, is shown with the respective gamma-ray intensities. Identification procedure is discussed in the context of the natural nuclide and series activity calculation.
Wydawca
Czasopismo
Rocznik
Tom
Strony
39--44
Opis fizyczny
Bibliogr. 16 poz., tab.
Twórcy
  • TL Dating Laboratory, Institute of Physics, Nicholas Copernicus University,Grudziądzka 5, 87-100 Toruń, Poland
Bibliografia
  • 1. Aarnio P.A., Routti J.T. and Sandberg J.V., 1988: MicroSampo – personal computer based advanced gamma spectrum analysis system. J. Radioanal. Nucl. Chem. 124: 457-466.
  • 2. Aitken M.J., 1985: Thermoluminescence Dating. Academic Press, London.
  • 3. Arnold D., Shima O., 2000: Coincidence summing in gamma-ray spectrometry by excitation of matrix X-rays and Appl. Radiation and Isotopes 52: 725-732.
  • 4. Browne E. and Firestone R.B., 1986: Table of Radioactive Isotopes. Shirley V. S., ed., Wiley-Interscience, New York.
  • 5. Debertin K. and Helmer R.G., 1988: Gamma- and X-Ray Spectrometry with Semiconductor Detectors. North-Holland, Amsterdam.
  • 6. Debertin K. and Schötzig U., 1979: Coincidence summing corrections in Ge(Li)-spectrometry at low source-to-detector distances. Nuclear Instruments and Methods 158: 471-477.
  • 7. De Felice P., Angelini P., Fazio A. and Biagini R., 2000: Fast procedure for coincidence-summing correction in gamma-ray spectrometry. Appl. Radiation and Isotopes 52: 745-752.
  • 8. Koskelo M.J., Aarnio P.A. and Routti J.T., 1981: Sampo80: minicomputer program for gamma spectrum analysis with nuclide identification. Comp. Phys. Commun. 24: 11-35.
  • 9. Murray A.S. and Aitken M.J., 1982: The measurements and importance of radioactive disequilibria in TL samples. Journal of the European Study Group on Phys., Chem., Biol. and Math. Tech. Applied to Archaeology, PACT 6: 155-169.
  • 10. Murray A.S. and Aitken M.J., 1988: Analysis of low-level natural radioactivity in small mineral samples for use in thermoluminescence dating, using high-resolution gamma spectrometry. Appl. Radiation and Isotopes 39: 145-158.
  • 11. Oczkowski H.L. , 2001: Gamma spectrometry for dose rate determination in luminescence dating. Physica Scripta, in print.
  • 12. Oczkowski H.L. and Przegiętka K.R., 1998: Partial matrix doses for thermoluminescence dating. Physica Scripta 58: 534-537.
  • 13. Oczkowski H.L., Przegiętka K.R., Lankauf K.R. and Szmańda J.B., 2000: Gamma spectrometry in thermoluminescence dating. Geochronometria 18: 57-62.
  • 14. Piton F., Lepy M-Ch., Be M-M. and Plagnard J., 2000: Efficiency transfer and coincidence summing corrections for gamma-ray spectrometry. Appl. Radiation and Isotopes 52: 791-795.
  • 15. Routti J.T. and Prussin S.G., 1969: Photopeak method for the computer analysis of gamma-ray spectra from semiconductor detectors. Nuclear Instruments and Methods 72: 125-142.
  • 16. Sampo 90. User’s Manual., 1993: Legion OY, Helsinki.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT3-0007-0035
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