INTERPRETATION OF BENT-CRYSTAL ROCKING CURVES

被引:36
作者
POPOVICI, M [1 ]
STOICA, AD [1 ]
CHALUPA, B [1 ]
MIKULA, P [1 ]
机构
[1] NUCL PHYS INST, REZ, CZECHOSLOVAKIA
关键词
D O I
10.1107/S0021889888001293
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The optics of successive Bragg reflection by two bent crystals is considered in the lamellar approximation. The optimal curvatures ensuring minimal rocking-curve widths and good reflection efficiencies are determined. The conditions under which a rocking curve reproduces the reflectivity curve of a bent crystal are indicated. Analytical formulae for the rocking-curve width and peak intensity are derived for three simple limiting cases. The computations are supported by experimental results obtained with bent perfect silicon crystals. © 1988, Wiley-Blackwell. All rights reserved.
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页码:258 / 265
页数:8
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