Extraction of plutonium-containing microcrystals from Hanford soil using a focused ion beam for single-crystal X-ray diffraction analysis
Extraction of plutonium-containing microcrystals from Hanford soil using a focused ion beam for single-crystal X-ray diffraction analysis
复制标题
使用聚焦离子束从汉福德土壤中提取含钚微晶进行单晶 X 射线衍射分析
DOI：
10.1107/s1600576719012299
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发表时间：
2019
影响因子：
6.1
通讯作者：
T. Lach
中科院分区：
文献类型：
--
作者：
J. Corbey;Dallas D. Reilly;L. Sweet;T. Lach
在此，成功地使用聚焦离子束/扫描电子显微镜制备放射性单晶的X射线衍射分析的微量样品的报告。该技术用于从216-Z-9废物槽中的汉福德土壤中提取和分析小至28 µm3的含钚晶体颗粒，然后使用单晶X射线衍射对其进行晶体学表征，以确认PuO 2的立方结构。 作为概念的系统性证明，首先使用研磨成体积约为4620、1331、125、8和1 µm3的立方体形状的二氧化铀晶体对该技术进行了测试，以便凭经验确定晶体尺寸极限，以便通过具有密封管Mo或Ag阳极X射线源和电荷耦合器件检测器的实验室衍射仪进行表征。
Herein, the successful use of a focused ion beam/scanning electron microscope to prepare microsamples of radioactive single crystals for X-ray diffraction analysis is reported. This technique was used to extract and analyze crystalline Pu-containing particles as small as 28 µm3 from Hanford soil taken from the 216-Z-9 waste crib, which were then crystallographically characterized using single-crystal X-ray diffraction to confirm the cubic structure of PuO2. As a systematic proof of concept, the technique was first tested using UO2 crystals milled into cubic shapes with approximate volumes of 4620, 1331, 125, 8 and 1 µm3, in order to empirically determine the crystal size limits for characterization by a laboratory-based diffractometer with a sealed tube Mo or Ag anode X-ray source and a charge-coupled device detector.
DOI：
10.1107/s0108767394005726
发表时间：
1995-01-01
期刊：
ACTA CRYSTALLOGRAPHICA SECTION A
影响因子：
--
作者：
BLESSING, RH
通讯作者：
BLESSING, RH