Abstract

A crucial issue in coherent x-ray diffraction imaging experiments is how to increase the signal-to-noise ratio when measuring relatively weak diffraction intensities from a nonperiodic object. A novel crystal guard aperture is described that makes use of a pair of multiple-bounce crystal optics to eliminate unwanted parasitic scattering background. This background is often produced by upstream optical elements such as a coherent-beam defining aperture. Recent experimental observation and theoretical analysis confirm the effectiveness of the crystal guard aperture method with coherence-preserved wave propagation through the crystal guard aperture and dramatically reduced scattering background in coherent x-ray diffraction images.

© 2006 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Hard X-ray imaging of bacterial cells: nano-diffraction and ptychographic reconstruction

R. N. Wilke, M. Priebe, M. Bartels, K. Giewekemeyer, A. Diaz, P. Karvinen, and T. Salditt
Opt. Express 20(17) 19232-19254 (2012)

Resolution enhancement in coherent x-ray diffraction imaging by overcoming instrumental noise

Chan Kim, Yoonhee Kim, Changyong Song, Sang Soo Kim, Sunam Kim, Hyon Chol Kang, Yeukuang Hwu, Ku-Ding Tsuei, Keng San Liang, and Do Young Noh
Opt. Express 22(23) 29161-29169 (2014)

Wavefront metrology for coherent hard X-rays by scanning a microsphere

Eirik Torbjørn Bakken Skjønsfjell, Yuriy Chushkin, Federico Zontone, Nilesh Patil, Alain Gibaud, and Dag W. Breiby
Opt. Express 24(10) 10710-10722 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription