A six‐axis robotic sample changer for high‐throughput neutron powder diffraction and texture measurements
A six‐axis robotic sample changer for high‐throughput neutron powder diffraction and texture measurements
复制标题
用于高通量中子粉末衍射和织构测量的六轴机器人进样器
DOI：
10.1107/s1600576714021797
复制
发表时间：
2014
影响因子：
6.1
通讯作者：
H. Nakotte
中科院分区：
文献类型：
--
作者：
A. Losko;S. Vogel;H. Reiche;H. Nakotte
现代中子源的最先进的中子飞行时间衍射仪允许每个样品以远低于一小时的速度进行样品处理。具有高度可靠性和灵活性的自动样品更换对于确保安全运行和有效利用可用中子通量至关重要。在高压择优取向(HIPPO)衍射仪上，先前的样品更改器在环境条件下测量了超过2300个织构和400个粉末样品，以研究位于洛斯阿拉莫斯中子科学中心的卢詹中子散射设施中晶体材料的性质。在十多年的样品转换器运行中获得的经验表明还有改进的空间，并导致了使用当前工业机器人技术的新设计。本文介绍了一种用于包括织构测量在内的中子粉末衍射实验的新型河马多功能六轴机器人换样器。
State-of-the-art neutron time-of-flight diffractometers at modern neutron sources allow sample throughput at rates of much less than one hour per sample. Automated sample changes with a high degree of reliability and flexibility are essential to assure safe operation and efficient use of available neutron flux. At the High-Pressure Preferred Orientation (HIPPO) diffractometer, a previous sample changer measured over 2300 texture and 400 powder samples at ambient conditions to study the properties of crystalline materials at the Lujan neutron scattering facility at the Los Alamos Neutron Science Center. Experience gained during operation of the sample changer for over a decade showed room for improvement and led to a new design using current industrial robot technology. Here, the new HIPPO versatile six-axis robotic sample changer for neutron powder diffraction experiments including texture measurements is presented.