3-D Imaging of complex source fields with a compton camera imager

J. E. McKisson; P. S. Haskins; D. P. Henderson; K. C. Neelands; C. K. Wang; T. Evans

doi:10.1109/23.603777

3-D Imaging of complex source fields with a compton camera imager

J. E. McKisson, P. S. Haskins, D. P. Henderson, K. C. Neelands, C. K. Wang, T. Evans

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Many practical applications of Compton Camera Imager (CCI) systems require imaging of extended sources in diffuse backgrounds. This paper presents image reconstructions of simulated CCI system data from extended source distributions with and without a diffuse background. The simulations were performed using a biased photon transport Monte Carlo code which was validated with MCNP results. The reconstruction code used an iterative back-projection technique based upon the Expectation Maximization Maximum Likelihood method. Examples are shown of two clearly resolved cylindrical sources, an extended source both with and without background, and extended sources at multiple depths within the volume. The results demonstrate the ability to image extended sources in high backgrounds with a limited number of events.

Original language	English
Pages (from-to)	916-921
Number of pages	6
Journal	IEEE Transactions on Nuclear Science
Volume	44
Issue number	3 PART 1
DOIs	https://doi.org/10.1109/23.603777
State	Published - 1997
Externally published	Yes

Funding

This work was supported in part by the National Institutes of Health, National Cancer Institute grant No. lR43CA67553-01.

Funders	Funder number
National Institutes of Health
National Cancer Institute

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abstract = "Many practical applications of Compton Camera Imager (CCI) systems require imaging of extended sources in diffuse backgrounds. This paper presents image reconstructions of simulated CCI system data from extended source distributions with and without a diffuse background. The simulations were performed using a biased photon transport Monte Carlo code which was validated with MCNP results. The reconstruction code used an iterative back-projection technique based upon the Expectation Maximization Maximum Likelihood method. Examples are shown of two clearly resolved cylindrical sources, an extended source both with and without background, and extended sources at multiple depths within the volume. The results demonstrate the ability to image extended sources in high backgrounds with a limited number of events.",

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AU - McKisson, J. E.

AU - Haskins, P. S.

AU - Henderson, D. P.

AU - Neelands, K. C.

AU - Wang, C. K.

AU - Evans, T.

PY - 1997

Y1 - 1997

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AB - Many practical applications of Compton Camera Imager (CCI) systems require imaging of extended sources in diffuse backgrounds. This paper presents image reconstructions of simulated CCI system data from extended source distributions with and without a diffuse background. The simulations were performed using a biased photon transport Monte Carlo code which was validated with MCNP results. The reconstruction code used an iterative back-projection technique based upon the Expectation Maximization Maximum Likelihood method. Examples are shown of two clearly resolved cylindrical sources, an extended source both with and without background, and extended sources at multiple depths within the volume. The results demonstrate the ability to image extended sources in high backgrounds with a limited number of events.

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3-D Imaging of complex source fields with a compton camera imager

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