Development of multi-systems for measurement of radionuclide absolute activity
DOI:
https://doi.org/10.15392/bjrs.v9i2C.1660Keywords:
TDCR, coincidence, multi-systems, radionuclide standardization, radionuclide metrology.Abstract
The development of a multi-systems triple-to-double coincidence ratio (TDCR) and coincidence 4pb-g methods, based on liquid scintillation to radionuclide standardization is presented in this work. The adjustments of multi-systems were made using standards of 3H and 14C and 60Co. The initial stage was performing measurements of pure beta-emitters 3H, 63Ni, and 90Sr90Y standard solutions by TDCR. The results were consistent within the standard uncertainty. Measurements will be performed with a beta-gamma 60Co in a comparison to the SIR / BIPM to assess the multi-system's performance.
Downloads
References
KEIGHTLEY, J., PARK, T. S. Digital coincidence counting for radionuclide standardization. Metrologia 44, 2007, p. 32–35.
YUAN, D. ET AL. Digital Coincidence System for beta-gamma Coincidence Counting. Nu-clear Physics A, Volume 834, 2010, p. 773c–776.
BRODA, R. AND POCHWALSKI K. The enhanced triple to double coincidence ratio (ETDCR) method for standardization of radionuclide by liquid scintillation counting. Nucl. Instrum. Methods, 1992, A 312, p. 85 – 89.
ZIMMERMAN, B. E. COLLE, R. AND CESSNA, J. T. Construction and implementation of the NIST triple-to-double coincidence ratio (TDCR) spectrometer, Applied Radiation and Isotopes 60, Issues 2–4, 2004, p. 433 – 438.
MÜLLER, J. W., ET AL. Report 52. Journal of the ICRU 1, 1994.
KAWADA, Y. Extended applications and improvement of the 4 coincidence method in the standardization of radionuclides. Electrotechnical Lab., 1972, Tokyo.
BAERG, A. P. Measurement of radioactive disintegration rate by the coincidence method. Metrologia, 1966, v. 2, n. 1, p. 23.
KNOLL, G. F. Radiation Detection and Measurement. Second Edition, John Wiley & Sons, 1989.
MALONDA, G. Modelos de Parâmetro Libre en Centelleo Liquido. Editorial CIEMAT, 1995.
BIRKS, J. B. Scintillations from Organic Crystals Specific Fluorescence and Relative Response of Different Radiations, Proc. Phys. Soc. London, 1951, Sect. A64, 874.
CASSETTE, P. Program TDCR07c: Program TDCR and tracer methods in LSC. LNHB-CEA/LIST, 2007, France.
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Brazilian Journal of Radiation Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
Licensing: The BJRS articles are licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
How to Cite
