ANALYSIS OF THE CIRCULAR-POLARIZATION RATE DELIVERED BY AN ASYMMETRIC WIGGLER AND A 2 BERYL CRYSTAL MONOCHROMATOR - CALCULATION AND EXPERIMENT

被引：20

作者：

LEFEBVRE, D

SAINCTAVIT, P

MALGRANGE, C

机构：

[1] UNIV PARIS 07,F-75252 PARIS,FRANCE

[2] UNIV PARIS 11,LAB UTILISAT RAYONNEMENT ELECTROMAGNET,F-91405 ORSAY,FRANCE

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1994年 / 65卷 / 08期

关键词：

D O I：

10.1063/1.1145224

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Synchrotrons are powerful sources of an x-ray beam whose polarization state is well defined. The recent apparition of insertion devices able to produce high flux of circularly polarized light has impulsed new fields of solid-state physics in spectroscopy or diffraction techniques. In this paper, the calculation of circular polarization rates taking into. account the characteristics of the synchrotron source and the depolarization effect introduced by the beam monochromatization on crystals is presented here. From measurements of the circular polarization rates by x-ray magnetic circular dichroism at nickel L(2,3) edges, the experimental results are in excellent agreement with the calculations.

引用

页码：2556 / 2561

页数：6

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