Paper
21 October 2004 4-pi Compton imaging with single 3D position-sensitive CdZnTe detector
Dan Xu, Zhong He, Carolyn E. Lehner, Feng Zhang
Author Affiliations +
Abstract
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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dan Xu, Zhong He, Carolyn E. Lehner, and 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); https://doi.org/10.1117/12.563905
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Cited by 65 scholarly publications.
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KEYWORDS
Sensors

Reconstruction algorithms

Detection and tracking algorithms

Spatial resolution

Expectation maximization algorithms

3D image processing

Stereoscopy

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