CAPACITANCE-BASED MICROPOSITIONING SYSTEM FOR X-RAY ROCKING CURVE MEASUREMENTS

被引:19
作者
MILLER, GL
BOIE, RA
COWAN, PL
GOLOVCHENKO, JA
KERR, RW
ROBINSON, DAH
机构
关键词
D O I
10.1063/1.1136010
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
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 ∼10-7 radians, 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.
引用
收藏
页码:1062 / 1069
页数:8
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