THE X-RAY-DIFFRACTION STATION AT THE ADONE WIGGLER FACILITY - PRELIMINARY-RESULTS (INCLUDING CRYSTAL PERFECTION)

被引：73

作者：

COLAPIETRO, M

CAPPUCCIO, G

MARCIANTE, C

PIFFERI, A

SPAGNA, R

HELLIWELL, JR

机构：

[1] CNR,IST STRUTT CHIM,I-00016 MONTEROTONDO,ITALY

[2] UNIV MANCHESTER,DEPT CHEM,MANCHESTER M13 9PL,LANCS,ENGLAND

[3] SERC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 1992年 / 25卷

关键词：

D O I：

10.1107/S0021889891011445

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The single-crystal X-ray diffractometer installed at the PWA Laboratory in Frascati is described. The Huber four-circle goniometer is controlled by an IBM-compatible personal computer by means of a plug-in board interface based on the LSI chip Am9513. The program CS running under MS-DOS performs a wide variety of operations from random search to data collection. The angular resolution of the diffractometer is 0.0025-degrees, while the instrumental resolution at 8 keV, with an Si(111) monochromator, is 0.0026-degrees. After preliminary tests. 2Zn insulin crystals were mounted on the diffractometer and reflections were measured using synchrotron radiation. The rocking curves show full widths at half-maxima (FWHM) in the range 0.013-0.031-degrees mainly due to the mosaicity.

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页码：192 / 194

页数：3

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