Imaging Performance of the Si/Ge Hybrid Compton Imager

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The point spread function (PSF) of a fully-instrumented silicon/germanium Compton telescope has been measured as a function of energy and angle. Overall, the resolution ranged from 3{sup o} to 4{sup o} FWHM over most of the energy range and field of view. The various contributions to the resolution have been quantified. These contributions include the energy uncertainty and position uncertainty of the detector; source energy; Doppler broadening; and the 1/r broadening characteristic of Compton back-projection. Furthermore, a distortion of the PSF is observed for sources imaged off-axis from the detector. These contributions are discussed and compared to theory and simulations.

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Burks, M; Chivers, D; Cork, C; Cunningham, M; Fabris, L; Gunter, D et al. November 10, 2005.

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The point spread function (PSF) of a fully-instrumented silicon/germanium Compton telescope has been measured as a function of energy and angle. Overall, the resolution ranged from 3{sup o} to 4{sup o} FWHM over most of the energy range and field of view. The various contributions to the resolution have been quantified. These contributions include the energy uncertainty and position uncertainty of the detector; source energy; Doppler broadening; and the 1/r broadening characteristic of Compton back-projection. Furthermore, a distortion of the PSF is observed for sources imaged off-axis from the detector. These contributions are discussed and compared to theory and simulations.

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  • Presented at: 2005 IEEE Nuclear Science Symposium and Medical Imaging Conference, Fajardo, PR, United States, Oct 23 - Oct 29, 2005

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  • Report No.: UCRL-CONF-217069
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 888590
  • Archival Resource Key: ark:/67531/metadc873258

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  • November 10, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 5, 2016, 8:44 p.m.

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Burks, M; Chivers, D; Cork, C; Cunningham, M; Fabris, L; Gunter, D et al. Imaging Performance of the Si/Ge Hybrid Compton Imager, article, November 10, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc873258/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.