DISPERSIVE EXAFS APPARATUS AT FRASCATI

被引：9

作者：

DACAPITO, F ^{[1
]}

BOSCHERINI, F ^{[1
]}

MARCELLI, A ^{[1
]}

MOBILIO, S ^{[1
]}

机构：

[1] UNIV LAQUILA,DIPARTIMENTO ENERGET,I-67100 LAQUILA,ITALY

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1992年 / 63卷 / 01期

关键词：

D O I：

10.1063/1.1143771

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report the successful design and test of a dispersive extended x-ray absorption fine structure (EXAFS) apparatus at Frascati. This technique is capable of measuring x-ray absorption spectra in fractions of a second and makes time-resolved structural studies possible. We describe the design of the instrument and compare the experimental performance with theoretical predictions. An energy resolution of 2-3 x 10(-4), an energy dispersion ranging from 350 to 870 eV (at 7 to 11 keV), a spot size between 0.5 to 1 mm, and a flux of the order of 10(6) photons/s/pixel/100 mA was achieved. EXAFS spectra with good signal-to-noise ratio can be obtained in 100 to 600 ms on concentrated samples.

引用

页码：899 / 901

页数：3

共 7 条

[1]

BALERNA A, 1986, INFN LNF8625NT INT N

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