Preparation of Mossbauer sources for 161Dy, 166Er, and 169Tm
Preparation of Mossbauer sources for 161Dy, 166Er, and 169Tm
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161Dy、166Er 和 169Tm 穆斯堡尔源的制备
DOI：
10.1007/s10751-023-01822-9
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发表时间：
2023
影响因子：
--
通讯作者：
Seto Makoto
中科院分区：
文献类型：
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作者：
Kitao Shinji;Kobayashi Yasuhiro;Kurokuzu Masayuki;Kubota Takumi;Seto Makoto
报道了161 Dy、166 Er和169 Tm穆斯堡尔谱的实际源的制备方法。Dy_（0.5）Gd_（0.5）F_3可作为中子辐照161 Dy穆斯堡尔谱的有用源材料。以稀土氧化物为原料，采用“湿法”合成氟化物。HoAl 2是40 K以上中子辐照166 Er穆斯堡尔谱的有用源材料。Ho0.4Y0.6H2是可用于较低温度的替代源材料，尽管Ho0.4Y0.6H2不适合重复使用。一种更安全的氢化方法，使用TiH 2代替H2气瓶将有助于源生产。含Er约10wt%的Er-Al合金可用作中子辐照的169 Tm穆斯堡尔源。讨论了用电子直线加速器产生161 Dy穆斯堡尔源的替代源方法。这些生产方法将作为补充用于许多其他来源和吸收剂。本报告重新考虑了161 Dy-、166 Er-和169 Tm-Mössbauer谱源制备的现有方法和实际方法的修订
Production methods for practical sources are reported for161Dy,166Er, and169Tm Mössbauer spectroscopy. Dy0.5Gd0.5F3can be a useful source material by neutron irradiation for161Dy Mössbauer spectroscopy. The fluoride was synthesized from rare-earth oxides by the “wet” method. HoAl2is a useful source material above 40 K for166Er Mössbauer spectroscopy by neutron irradiation. Ho0.4Y0.6H2is an alternative source material usable for lower temperatures, although Ho0.4Y0.6H2is not appropriate for repetitive use. A safer method for hydrogenation using TiH2instead of a H2gas cylinder will help the source production. Er-Al alloy including about 10-wt% of Er can be used as169Tm Mössbauer source by neutron irradiation. Alternative source production method by high-energy X-rays using electron linear accelerator is discussed for161Dy Mössbauer source. These production methods will be used complementarily for many other sources and absorbers. This report reconsiders the existing approaches and a revision of practical methods for the preparation of the sources for161Dy-,166Er- and169Tm-Mössbauer spectroscopy