TY - GEN
T1 - Tomography with grating interferometers at low-brilliance sources
AU - Weitkamp, Timm
AU - David, Christian
AU - Kottler, Christian
AU - Bunk, Oliver
AU - Pfeiffer, Franz
PY - 2006
Y1 - 2006
N2 - The coherence requirements for efficient operation of an X-ray grating interferometer are discussed. It is shown how a Talbot-Lau geometry, in which an array of equidistant secondary sources is used, can be used to decouple fringe visibility in the interferometer (and thus, its efficiency) from the total size of the X-ray source. This principle can be used for phase-contrast radiography and tomography with sources of low brilliance, such as X-ray tubes. X-ray tomography, phase contrast, coherence, Talbot interferometer, Talbot-Lau interferometer,.
AB - The coherence requirements for efficient operation of an X-ray grating interferometer are discussed. It is shown how a Talbot-Lau geometry, in which an array of equidistant secondary sources is used, can be used to decouple fringe visibility in the interferometer (and thus, its efficiency) from the total size of the X-ray source. This principle can be used for phase-contrast radiography and tomography with sources of low brilliance, such as X-ray tubes. X-ray tomography, phase contrast, coherence, Talbot interferometer, Talbot-Lau interferometer,.
KW - Microtomography
KW - Phase reconstruction
KW - Phase-stepping interferometry
KW - Synchrotron radiation
UR - http://www.scopus.com/inward/record.url?scp=33750687279&partnerID=8YFLogxK
U2 - 10.1117/12.683851
DO - 10.1117/12.683851
M3 - Conference contribution
AN - SCOPUS:33750687279
SN - 0819463973
SN - 9780819463975
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Developments in X-Ray Tomography V
T2 - Developments in X-Ray Tomography V
Y2 - 15 August 2006 through 17 August 2006
ER -