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The development of a rectilinear scanner utilizing high resolution gamma-ray detection

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Abstract

A rectilinear scanner has been constructed which incorporates high resolution gamma-ray spectroscopy. This scanner was built to simultaneously image the distributions of multiple gamma-emitting radionuclides in small animals, such as rabbits and rats. The instrument design is described, followed by studies of the Ge(Li) detector response and calibration tests of a single straight-hole collimator. Based on these results, two new collimators were designed and constructed; (1) a six tapered-hole focusing collimator and (2) a nine straight-hole focusing collimator. These new collimators are advantageous because they offer an increased efficiency of gamma-ray detection during scanning. They also give better image resolution in the differentiation of two points (or organs) on a plane. The results of the calibration tests and comparisons of the resolution and efficiency among collimators are illustrated and discussed.

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Authors and Affiliations

  1. Research Reactor, University of Missouri, 65211, Columbia, Missouri, (USA)

    K. R. Zinn, J. S. Morris, Ch. A. Fairfax & R. R. Berliner

  2. Department of Nuclear Engineering, University of Missouri, 65211, Columbia, Missouri, (USA)

    Hungyuan B. Liu & R. M. Brugger

Authors
  1. K. R. Zinn
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  2. J. S. Morris
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  3. Ch. A. Fairfax
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  4. R. R. Berliner
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  5. Hungyuan B. Liu
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  6. R. M. Brugger
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Zinn, K.R., Morris, J.S., Fairfax, C.A. et al. The development of a rectilinear scanner utilizing high resolution gamma-ray detection. Journal of Radioanalytical and Nuclear Chemistry, Articles 157, 15–25 (1992). https://doi.org/10.1007/BF02039773

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  • DOI: https://doi.org/10.1007/BF02039773

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