A GSO positron/single-photon imaging detector

Seiichi Yamamoto*, Keiichi Matsumoto, Setsu Sakamoto, Michio Senda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We have developed and tested a GSO position sensitive gamma detector which can be used with positron and single-photon radionuclides for imaging breast cancer or sentinel lymph node detection. Because GSO has a relatively good energy resolution for annihilation gammas as well as low energy gamma photons, and does not contain any natural radioisotopes, it can be used for positron imaging and lower energy single-photon imaging. The imaging detector consists of a GSO block, 2-inch square multi-channel position sensitive photo-multiplier tube (PSPMT), and associated electronics. For the positron imaging, coincidence between the imaging detector and a single gamma probe is measured. For the single-photon imaging, a tungsten collimator is mounted in front of the imaging detector. With this configuration, it was possible to image both positron radionuclides and low energyu single-photon radionuclides.

Original languageEnglish
Pages (from-to)106-108
Number of pages3
JournalPhysica Medica
Issue numberSUPPL. 1
Publication statusPublished - 2006
Externally publishedYes


  • GSO
  • Position sensitive photomultiplier-tube
  • Positron
  • Single photon

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging
  • Physics and Astronomy(all)


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