Nuclear Energy and Safety Department, Paul Scherrer Institut, Villigen, Switzerland.
Institut Laue-Langevin, Grenoble, France.
PLoS One. 2018 Aug 22;13(8):e0200910. doi: 10.1371/journal.pone.0200910. eCollection 2018.
This paper describes the production and chemical separation of the 163Ho isotope that will be used in several nuclear physics experiments aiming at measuring the neutrino mass as well as the neutron cross section of the 163Ho isotope. For this purpose, several batches of enriched 162Er have been irradiated at the Institut Laue-Langevin high flux reactor to finally produce 6 mg or 100 MBq of the desired 163Ho isotope. A portion of the Er/Ho mixture is then subjected to a sophisticated chemical separation involving ion exchange chromatography to isolate the Ho product from the Er target material. Before irradiation, a thorough analysis of the impurity content was performed and its implication on the produced nuclide inventory will be discussed.
本文介绍了用于几项核物理实验的 163Ho 同位素的生产和化学分离，这些实验旨在测量中微子质量以及 163Ho 同位素的中子截面。为此，在法国格勒诺布尔的伊雷内·约里奥-居里研究所的高通量反应堆中辐照了几批富 162Er，最终生产出 6 毫克或 100MBq 的所需的 163Ho 同位素。然后，将部分 Er/Ho 混合物进行复杂的化学分离，包括离子交换色谱法，以将 Ho 产物从 Er 靶材料中分离出来。在辐照之前，对杂质含量进行了彻底分析，并将讨论其对所产生核素库存的影响。
