Performance of a diamond‐anvil high‐pressure x‐ray diffractometer in the Guinier geometry
作者:
P. Ch. Sahu,
Mohammad Yousuf,
N. V. Chandra Shekar,
N. Subramanian,
K. Govinda Rajan,
期刊:
Review of Scientific Instruments
(AIP Available online 1995)
卷期:
Volume 66,
issue 3
页码: 2599-2603
ISSN:0034-6748
年代: 1995
DOI:10.1063/1.1145595
出版商: AIP
数据来源: AIP
摘要:
In this paper, the performance of a novel high‐pressure diamond‐anvil powder x‐ray diffractometer in Guinier geometry is reported. The diffractometer is a combination of a curved quartz‐crystal monochromator, a Mao–Bell‐type diamond‐anvil cell, a flat position sensitive detector, and a Huber goniometer with compound stages to realize this geometry. The incident x‐ray beam is from a rotating anode x‐ray generator. It is shown that the above experimental arrangement results in an enhanced S/N ratio, improvement in resolution, and reduction of the data‐acquisition time. Test results on UAl2are presented to demonstrate the advantages of the setup in the study of phase transitions at high pressure. ©1995 American Institute of Physics.
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