Luca Aurelian, Amiot Marie-Noëlle, Morel Jean
National Institute of R & D in Physics and Nuclear Engineering 'Horia Hulubei' (IFIN-HH), 407 Atomistilor Street, Com. Magurele, PO Box MG-6, Jud Ilfov R-76900, Romania.
Appl Radiat Isot. 2003 May;58(5):607-10. doi: 10.1016/s0969-8043(02)00354-8.
A (65) Zn radioactive solution standardized by an absolute measurement method at Laboratoire National Henri Becquerel (LNHB), was sent to Bureau International des Poids et Mesures (BIPM), in order to include the results in their database. The activity value determined at BIPM was in good agreement with that stated by LNHB (the difference was 0.3%). Additional measurements of (65) Zn activity and half-life were also carried out, by using a 4pigamma ionization chamber; the half-life value proposed by this work: 244.15 (10) days, is consistent to others reported in the literature. The spectra analysis was performed by gamma-ray spectrometry with high-purity germanium detectors, with the aim to improve the accuracy of the photon emission probabilities values of this nuclide. The determined photon emission probabilities are 0.498 for the 1115 ke V gamma-ray, 0.347 and 0.0479 for the X-rays Cu-K(alpha) and Cu-K(beta); the associated uncertainties are 0.4%, 0.9% and 1.1%, respectively.
一种由法国国家亨利·贝克勒尔实验室（LNHB）通过绝对测量法标准化的（65）锌放射性溶液被送往国际计量局（BIPM），以便将结果纳入其数据库。BIPM测定的活度值与LNHB所述值高度一致（差值为0.3%）。还使用一个4πγ电离室对（65）锌的活度和半衰期进行了额外测量；这项工作提出的半衰期值为244.15（10）天，与文献中报道的其他值一致。通过使用高纯锗探测器的γ射线光谱法进行光谱分析，目的是提高该核素光子发射概率值的准确性。对于1115 keV的γ射线，测定的光子发射概率为0.498；对于X射线Cu-K（α）和Cu-K（β），分别为0.347和0.0479；相关不确定度分别为0.4%、0.9%和1.1%。
