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Structured illumination for compressive x-ray diffraction tomography

Publication ,  Journal Article
Greenberg, JA; Brady, DJ
Published in: Proceedings of SPIE - The International Society for Optical Engineering
January 1, 2014

Coherent x-ray scatter (also know as x-ray diffraction) has long been used to non-destructively investigate the molecular structure of materials for industrial, medical, security, and fundamental purposes. Unfortunately, molecular tomography based on coherent scatter typically requires long scan times and/or large incident fluxes, which has limited the practical applicability of such schemes. One can overcome the conventional challenges by employing compressive sensing theory to optimize the information obtained per incident photon. We accomplish this in two primary ways: we use a coded aperture to structure the incident illumination and realize massive measurement parallelization and use photon-counting, energy-sensitive detection to recover maximal information from each detected photon. We motivate and discuss here the general imaging principles, investigate different coding and sampling strategies, and provide results from theoretical studies for our structured illumination scheme. We find that this approach promises real-time molecular tomography of bulk objects without a loss in imaging performance. © 2014 SPIE-IS&T.

Duke Scholars

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

Publication Date

January 1, 2014

Volume

9020

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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Greenberg, J. A., & Brady, D. J. (2014). Structured illumination for compressive x-ray diffraction tomography. Proceedings of SPIE - The International Society for Optical Engineering, 9020. https://doi.org/10.1117/12.2048264
Greenberg, J. A., and D. J. Brady. “Structured illumination for compressive x-ray diffraction tomography.” Proceedings of SPIE - The International Society for Optical Engineering 9020 (January 1, 2014). https://doi.org/10.1117/12.2048264.
Greenberg JA, Brady DJ. Structured illumination for compressive x-ray diffraction tomography. Proceedings of SPIE - The International Society for Optical Engineering. 2014 Jan 1;9020.
Greenberg, J. A., and D. J. Brady. “Structured illumination for compressive x-ray diffraction tomography.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 9020, Jan. 2014. Scopus, doi:10.1117/12.2048264.
Greenberg JA, Brady DJ. Structured illumination for compressive x-ray diffraction tomography. Proceedings of SPIE - The International Society for Optical Engineering. 2014 Jan 1;9020.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

Publication Date

January 1, 2014

Volume

9020

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering