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The importance of the beta spectrum calculation for accurate activity determination of 63 Ni by means of liquid scintillation counting
- Source :
- Applied Radiation and Isotopes, Applied Radiation and Isotopes, Elsevier, 2015, 101, pp.40-43. ⟨10.1016/j.apradiso.2015.03.017⟩, Applied Radiation and Isotopes, 2015, 101, pp.40-43. ⟨10.1016/j.apradiso.2015.03.017⟩
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- International audience; The activity concentration of a Ni-63 solution was determined by means of two liquid scintillation counting techniques: the TDCR method and the CIEMAT/NIST efficiency tracing technique. The results of both methods are in excellent agreement, provided that the Ni-63 beta spectrum calculation accounts for the atomic exchange effect. Thus, new beta spectrum calculations resolve a discrepancy that has been found in previous analyses. The influence of the computed beta spectrum on the final uncertainty of the activity concentration is discussed.
- Subjects :
- standardization
Exchange effect
Liquid scintillation counting
Radiation
[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]
63Ni beta spectrum
Chemistry
Spectrum (functional analysis)
Analytical chemistry
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
010403 inorganic & nuclear chemistry
01 natural sciences
0104 chemical sciences
Computational physics
TDCR
0103 physical sciences
Activity concentration
NIST
Beta (velocity)
010306 general physics
Subjects
Details
- ISSN :
- 09698043
- Volume :
- 101
- Database :
- OpenAIRE
- Journal :
- Applied Radiation and Isotopes
- Accession number :
- edsair.doi.dedup.....bb76caeb2d547eeb4183353697cbd654