X-ray computed tomography system using a multipixel photon counter

Eiichi Sato, Hiroshi Matsukiyo, Akihiro Osawa, Toshiyuki Enomoto, Manabu Watanabe, Jiro Nagao, Purkhet Abderyim, Seiichiro Nomiya, Keitaro Hitomi, Akira Ogawa, Shigehiro Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


A photon-counting K-edge x-ray Computed Tomography (CT) system is useful for discriminating photon energy and for decreasing absorbed dose for patients. The CT system is of the first generation type and consists of an x-ray generator, a turn table, a translation stage, a two-stage controller, a multipixel photon counter (MPPC) module, a 0.5-mm-thick zinc oxide (ZnO) scintillator, a counter board (CB), and a personal computer (PC). Tomography is accomplished by repeating the translation and rotation of an object. Penetrating x-ray photons from the object are detected by the scintillator in conjunction with the MPPC module, and the event signals are counted by the CB. Without using energy discriminating, photon counting CT was carried out by controlling x-ray spectra.

Original languageEnglish
Title of host publicationHard X-Ray, Gamma-Ray, and Neutron Detector Physics X
Publication statusPublished - 2008 Dec 17
EventHard X-Ray, Gamma-Ray, and Neutron Detector Physics X - San Diego, CA, United States
Duration: 2008 Aug 112008 Aug 13

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherHard X-Ray, Gamma-Ray, and Neutron Detector Physics X
Country/TerritoryUnited States
CitySan Diego, CA


  • DDS imaging
  • High speed photon counting
  • Multipixel photon counter
  • Photon-counting CT
  • ZnO scintillator

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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