Electron-tracking Compton camera imaging of technetium-95m

IR

Bibliographic Information

Other Title
  • テクネチウム95mの電子飛跡検出型コンプトンカメラ撮像

Abstract

Imaging of $^{95m}$Tc radioisotope was conducted using an electron tracking-Compton camera (ETCC). $^{95m}$Tc emits 204, 582, and 835 keV $\gamma$ rays, and was produced in the $^{95}$Mo(p,n)$^{95m}$Tc reaction with a $^{95}$Mo-enriched target. The recycling of the $^{95}$Mo-enriched molybdenum trioxide was investigated, and the recycled yield of $^{95}$Mo was achieved to be 70\% - 90\%. The images were obtained with each of the three $\gamma$ rays. Results showed that the spatial resolution increases with increasing $\gamma$-ray energy, and suggested that the ETCC with high-energy $\gamma$-ray emitters such as $^{95m}$Tc is useful for the medical imaging of deep tissue and organs in the human body.

Journal

  • PLOS ONE (Internet)

    PLOS ONE (Internet) 13 (12), e0208909_1-e0208909_12, 2018-12

    Public Library of Science

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