21 October 2004 4-pi Compton imaging with single 3D position-sensitive CdZnTe detector
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A 3D CdZnTe detector can provide 3D position information as well as energy information of each individual interaction when a gamma ray is scattered or absorbed in the detector. This unique feature provides the 3D CdZnTe detector the capability to do Compton imaging with a single detector. After detector calibration, real-time data acquisition and imaging are implemented with a single detector system. Because the detector has a finite size and any point in the detector can be the first scattering position, 3D gamma-ray imaging in near field is possible. In this work we will show the result of the 4π Compton imaging with a single 15mm × 15mm × 10mm CdZnTe detector. Different algorithms for sequence and imaging reconstruction will be addressed and compared. The angular uncertainty is estimated and the most recent results from measurements are presented.
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Dan Xu, Dan Xu, Zhong He, Zhong He, Carolyn E. Lehner, Carolyn E. Lehner, Feng Zhang, Feng Zhang, } "4-pi Compton imaging with single 3D position-sensitive CdZnTe detector", Proc. SPIE 5540, Hard X-Ray and Gamma-Ray Detector Physics VI, (21 October 2004); doi: 10.1117/12.563905; https://doi.org/10.1117/12.563905

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