TY - JOUR
T1 - X-ray microtomography using correlation of near-field speckles for material characterization
AU - Zanette, Irene
AU - Zdora, Marie Christine
AU - Zhou, Tunhe
AU - Burvall, Anna
AU - Larsson, Daniel H.
AU - Thibault, Pierre
AU - Hertz, Hans M.
AU - Pfeiffer, Franz
PY - 2015/10/13
Y1 - 2015/10/13
N2 - Nondestructive microscale investigation of objects is an invaluable tool in life and materials sciences. Currently, such investigation is mainly performed with X-ray laboratory systems, which are based on absorption-contrast imaging and cannot access the information carried by the phase of the X-ray waves. The phase signal is, nevertheless, of great value in X-ray imaging as it is complementary to the absorption information and in general more sensitive to visualize features with small density differences. Synchrotron facilities, which deliver a beam of high brilliance and high coherence, provide the ideal condition to develop such advanced phase-sensitive methods, but their access is limited. Here we show how a small modification of a laboratory setup yields simultaneously quantitative and 3D absorption and phase images of the object. This single-shot method is based on correlation of X-ray near-field speckles and represents a significant broadening of the capabilities of laboratory- based X-ray tomography.
AB - Nondestructive microscale investigation of objects is an invaluable tool in life and materials sciences. Currently, such investigation is mainly performed with X-ray laboratory systems, which are based on absorption-contrast imaging and cannot access the information carried by the phase of the X-ray waves. The phase signal is, nevertheless, of great value in X-ray imaging as it is complementary to the absorption information and in general more sensitive to visualize features with small density differences. Synchrotron facilities, which deliver a beam of high brilliance and high coherence, provide the ideal condition to develop such advanced phase-sensitive methods, but their access is limited. Here we show how a small modification of a laboratory setup yields simultaneously quantitative and 3D absorption and phase images of the object. This single-shot method is based on correlation of X-ray near-field speckles and represents a significant broadening of the capabilities of laboratory- based X-ray tomography.
KW - Microtomography
KW - Near-field speckles
KW - Phase-contrast imaging
KW - Refractive index measurement
KW - X-ray imaging
UR - http://www.scopus.com/inward/record.url?scp=84944200781&partnerID=8YFLogxK
U2 - 10.1073/pnas.1502828112
DO - 10.1073/pnas.1502828112
M3 - Article
AN - SCOPUS:84944200781
SN - 0027-8424
VL - 112
SP - 12569
EP - 12573
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 41
ER -