Fast tomography using quasi-monochromatic undulator radiation

被引：27

作者：

Uesugi, Kentaro ^{[1
]}

Sera, Toshihiro ^{[1
]}

Yagi, Naoto ^{[1
]}

机构：

[1] JASRI, SPring 8, Sayo, Hyogo 6795198, Japan

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2006年 / 13卷

关键词：

tomography; helical undulator; fast scan; soft materials;

D O I：

10.1107/S0909049506023466

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A beamline with a helical undulator has been used without a monochromator for fast high-resolution tomographic imaging with an X-ray energy of 12.4 - 16.5 keV and an energy bandwidth of 2 - 3%. The X-ray beam was expanded with two mirrors to 12 mm x 4 mm. The X-ray field was made uniform by a diffuser. The detector pixel size was 9.9 mu m x 9.9 mu m. At the highest speed, a 180 degrees scan was completed in 6 s with 454 projections. Beam-hardening effects were not significant. This technique may be useful in studying time-dependent structural changes of soft materials such as polymers and biological samples.

引用

收藏

页码：403 / 407

页数：5

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