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Rapid GPU-based simulation of x-ray transmission, scatter, and phase measurements for threat detection systems

Publication ,  Conference
Gong, Q; Coccarelli, D; Stoian, RI; Greenberg, J; Vera, E; Gehm, M
Published in: Proceedings of SPIE - The International Society for Optical Engineering
January 1, 2016

To support the statistical analysis of x-ray threat detection, we developed a very high-throughput x-ray modeling framework based upon GPU technologies and have created three different versions focusing on transmission, scatter, and phase. The simulation of transmission imaging is based on a deterministic photo-absorption approach. This initial transmission approach is then extended to include scatter effects that are computed via the Born approximation. For phase, we modify the transmission framework to propagate complex ray amplitudes rather than radiometric quantities. The highly-optimized NVIDIA OptiX API is used to implement the required ray-tracing in all frameworks, greatly speeding up code execution. In addition, we address volumetric modeling of objects via a hierarchical representation structure of triangle-mesh-based surface descriptions. We show that the x-ray transmission and phase images of complex 3D models can be simulated within seconds on a desktop computer, while scatter images take approximately 30-60 minutes as a result of the significantly greater computational complexity.

Duke Scholars

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

ISBN

9781510600881

Publication Date

January 1, 2016

Volume

9847

Related Subject Headings

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

Citation

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Gong, Q., Coccarelli, D., Stoian, R. I., Greenberg, J., Vera, E., & Gehm, M. (2016). Rapid GPU-based simulation of x-ray transmission, scatter, and phase measurements for threat detection systems. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9847). https://doi.org/10.1117/12.2223244
Gong, Q., D. Coccarelli, R. I. Stoian, J. Greenberg, E. Vera, and M. Gehm. “Rapid GPU-based simulation of x-ray transmission, scatter, and phase measurements for threat detection systems.” In Proceedings of SPIE - The International Society for Optical Engineering, Vol. 9847, 2016. https://doi.org/10.1117/12.2223244.
Gong Q, Coccarelli D, Stoian RI, Greenberg J, Vera E, Gehm M. Rapid GPU-based simulation of x-ray transmission, scatter, and phase measurements for threat detection systems. In: Proceedings of SPIE - The International Society for Optical Engineering. 2016.
Gong, Q., et al. “Rapid GPU-based simulation of x-ray transmission, scatter, and phase measurements for threat detection systems.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 9847, 2016. Scopus, doi:10.1117/12.2223244.
Gong Q, Coccarelli D, Stoian RI, Greenberg J, Vera E, Gehm M. Rapid GPU-based simulation of x-ray transmission, scatter, and phase measurements for threat detection systems. Proceedings of SPIE - The International Society for Optical Engineering. 2016.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

ISBN

9781510600881

Publication Date

January 1, 2016

Volume

9847

Related Subject Headings

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