A triple-crystal diffractometer for high-energy synchrotron radiation at the HASYLAB high-field wiggler beamline BW5.
A triple-crystal diffractometer for high-energy synchrotron radiation at the HASYLAB high-field wiggler beamline BW5.
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DOI：
10.1107/s090904959701457x
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发表时间：
1998-03
影响因子：
2.5
通讯作者：
R. Bouchard;D. Hupfeld;T. Lippmann;J. Neuefeind;H. Neumann;H. Poulsen;U. Rütt;T. Schmidt;J. Schneider;J. Süßenbach;M. von Zimmermann
中科院分区：
文献类型：
--
作者：
R. Bouchard;D. Hupfeld;T. Lippmann;J. Neuefeind;H. Neumann;H. Poulsen;U. Rütt;T. Schmidt;J. Schneider;J. Süßenbach;M. von Zimmermann
本文介绍了安装在HASYLAB束线BW 5上的三晶衍射仪，它具有临界能量为27 keV的DORIS III高场摆动器，工作在4.5 GeV的电子能量下。样品可以安装在中子散射实验中常用的大型低温恒温器或熔炉中。该仪器已成功地应用于测量液体和非晶材料的结构因子S（Q），收集电荷密度工作的高精度结构因子的完整数据集，测量过渡金属和稀土化合物基态磁化的自旋分量，研究Si单晶中堆垛层错和位错环的漫散射，并用于研究结构相变的各个方面：SrTiO 3中的临界散射，高To材料中的氧有序和条纹有序。交叉束技术允许对大部分材料的纹理、内部应变和相变进行局部研究。
The triple-crystal diffractometer installed at HASYLAB beamline BW5 with a high-field wiggler of critical energy 27 keV for DORIS III, operated at 4.5 GeV electron energy, is described. Samples can be mounted in large cryostats or furnaces normally used in neutron scattering experiments. The instrument has been successfully applied to measure structure factors S(Q) in liquids and amorphous materials, to collect full data sets of highly accurate structure factors for charge-density work, to measure the spin component of the ground-state magnetization in transition-metal and rare-earth compounds, to study the diffuse scattering from stacking faults and dislocation loops in Si single crystals, and for the investigation of various aspects of structural phase transitions: critical scattering in SrTiO3, oxygen order and stripe order in high-To materials. A crossed-beam technique allows for local studies of texture, internal strain and phase changes in the bulk of materials.