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Updated: Jul 25, 2026

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography
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Gamma-ray imaging with a Si/CsI(Tl) Compton detector
A S Hoover1, J P Sullivan, B Baird
1Los Alamos National Laboratory, Los Alamos, NM 87545, USA. ahoover@lanl.gov
Abstract:
We present results from Compton imaging of gamma-ray sources using an instrument constructed from thin silicon scattering detectors and CsI(Tl) absorbing detectors. We have successfully imaged single and double point sources for several common radioactive isotopes ((137)Cs, (60)Co, (22)Na, (54)Mn). The measured angular resolution is 11.6( composite function) FWHM at 662keV. In parallel with the hardware effort, a GEANT4-based simulation code was developed. Comparisons between real and simulated data are discussed.
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