Standardization of 67 Cu and calibration of the ionization chamber. Impurities and decay scheme problems.

Autor: Sahagia M; Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest .30 Reactorului St. Magurele, jud. Ilfov, POB MG-6, RO 0-77125, Romania. Electronic address: msahagia@nipne.ro., Luca A; Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest .30 Reactorului St. Magurele, jud. Ilfov, POB MG-6, RO 0-77125, Romania., Ioan MR; Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest .30 Reactorului St. Magurele, jud. Ilfov, POB MG-6, RO 0-77125, Romania., Antohe A; Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest .30 Reactorului St. Magurele, jud. Ilfov, POB MG-6, RO 0-77125, Romania., Ivan C; Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest .30 Reactorului St. Magurele, jud. Ilfov, POB MG-6, RO 0-77125, Romania.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2018 Apr; Vol. 134, pp. 297-301. Date of Electronic Publication: 2017 Oct 19.
DOI: 10.1016/j.apradiso.2017.10.036
Abstrakt: This paper describes the standardization of 67 Cu by the 4πβ(PC)-γ coincidence method, and the calibration of ionization chamber. The difficulties were. (i) One of the excited levels of 67 Zn has a half life of 9.10μs. (ii) A recent publication reconsiders the decay scheme parameters. (iii) The solution had a significant content of impurities. The conclusions were that the result of absolute standardization is less influenced by the decay scheme parameters and impurities than the measurements by ionization chamber.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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