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Spectroscopic Compton imaging of prompt gamma emission at the MeV energy range.

ABSTRACT: This work explores a novel tomographic approach to PGAA that is both quantitative and spatially resolved, adapted from a clinical "proton beam range finder" in which MeV gamma rays are imaged by coincidence measurements of Compton scattered gamma rays with multi-detector arrays. We performed preliminary measurements using a Compton camera made with CdZnTe detector arrays on a series of test samples with high-energy (> 1 MeV) gamma emission lines. 3D image reconstructions were performed on the 2.2 MeV peak from H. The image reconstruction methods were also evaluated using the emission data generated by Monte Carlo simulations under ideal conditions.

SUBMITTER: Chen H

PROVIDER: S-EPMC6640867 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Spectroscopic Compton imaging of prompt gamma emission at the MeV energy range.

Chen Haijian H Chen-Mayer Huaiyu H HH Turkoglu Danyal J DJ Riley Benjamin K BK Draeger Emily E Polf Jerimy P JP

Journal of radioanalytical and nuclear chemistry 20180820 1

This work explores a novel tomographic approach to PGAA that is both quantitative and spatially resolved, adapted from a clinical "proton beam range finder" in which MeV gamma rays are imaged by coincidence measurements of Compton scattered gamma rays with multi-detector arrays. We performed preliminary measurements using a Compton camera made with CdZnTe detector arrays on a series of test samples with high-energy (> 1 MeV) gamma emission lines. 3D image reconstructions were performed on the 2. ...[more]

PMID: 31327884

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