GSO depth of interaction detector for PET

S. Yamamoto*, H. Ishibashi


研究成果: Paper査読

2 被引用数 (Scopus)


We have developed a GSO depth of interaction detector. Three GSO scintillators with different concentration of Ce were chosen and stacked along depth of interaction direction and optically coupled to a photomultiplier tube (PMT) or a position sensitive photomultiplier tube (PSPMT). In the beginning, pulse shape, light output and zero-cross time were measured so as to select a proper combination of GSO scintillators with different concentrations of Ce. Selecting three GSO scintillators with different concentration of Ce, a single stacked GSO/PMT depth of interaction detector was fabricated for estimating the possibility of this method. Using the zero-cross time analysis, three peaks correspond to decay times of the three GSO scintillator were obtained. Finally, a GSO/PSPMT depth of interaction block detector was fabricated and tested. The block detector consists of 7×7 matrix of GSO scintillators which have three layers of different concentrations of Ce optically coupled to a PSPMT. The pulse shape analysis was used for determination of depth of interaction direction while the Anger logic was used for transaxial and axial directions. Good separations were obtained in depth of interaction direction as well as transaxial and axial direction. These results indicate that the GSO block detector may become one solution for developing a positron emission tomograph (PET) with depth of interaction detection capability.

出版ステータスPublished - 1997
イベントProceedings of the 1997 IEEE Nuclear Science Symposium - Albuquerque, NM, USA
継続期間: 1997 11月 91997 11月 15


ConferenceProceedings of the 1997 IEEE Nuclear Science Symposium
CityAlbuquerque, NM, USA

ASJC Scopus subject areas

  • 放射線
  • 核物理学および高エネルギー物理学
  • 放射線学、核医学およびイメージング


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