Investigation of radiation-dose-induced changes in organic light-atom crystals by accurate d-spacing measurements

被引：31

作者：

Müller, R

Weckert, E

Zellner, J

Drakopoulos, M

机构：

[1] Rhein Westfal TH Aachen, Inst Kristallog, D-5100 Aachen, Germany

[2] DESY, HASYLAB, D-2000 Hamburg, Germany

[3] ESRF, Grenoble, France

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2002年 / 9卷

关键词：

radiation damage; d-spacing measurements;

D O I：

10.1107/S0909049502014620

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Changes in d-spacing have been measured for organic compounds as a function of temperature, wavelength and primary beam intensity using intense synchrotron radiation. The d-spacings of organic and protein crystals were found to increase irreversibly as a function of radiation dose. The activation energy of this thermally activated process was estimated. No evidence for a significant temperature increase of the sample due to exposure to intense X-ray beams could be found experimentally for flux densities up to 4 x 10(12) photons s(-1) mm(-2).

引用

页码：368 / 374

页数：7

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