Open AccessFast tomography using quasi‐monochromatic undulator radiation
Author(s) -
Uesugi Kentaro,
Sera Toshihiro,
Yagi Naoto
Publication year - 2006
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049506023466
Subject(s) - undulator , monochromator , optics , beamline , monochromatic color , synchrotron radiation , radiation , materials science , spring 8 , tomography , physics , detector , beam (structure) , wavelength
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 × 4 mm. The X‐ray field was made uniform by a diffuser. The detector pixel size was 9.9 µm × 9.9 µm. At the highest speed, a 180° 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.