A capacitance‐based micropositioning system for x‐ray rocking curve measurements
作者:
G. L. Miller,
R. A. Boie,
P. L. Cowan,
J. A. Golovchenko,
R. W. Kerr,
D. A. H. Robinson,
期刊:
Review of Scientific Instruments
(AIP Available online 1979)
卷期:
Volume 50,
issue 9
页码: 1062-1069
ISSN:0034-6748
年代: 1979
DOI:10.1063/1.1136010
出版商: AIP
数据来源: AIP
摘要:
Certain types of x‐ray experiments require very precise angular positioning of crystals in the vicinity of the Bragg reflection condition. A system applicable to some measurement of this type is described which achieves a long‐term angular stability of ∼10−7radians, coupled with a linear angular readout. This is achieved through a novel capacitance sensing system which provides angle measurement, together with the use of an auxilliary servo loop based on the Bragg condition to ensure long‐term overall angular stability.
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