Design and construction of a multi-slice, depth-of-interaction MR-compatible PET

S. Takamatsu, S. Yamamoto*, H. Murayama, K. Minato

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We are now developing a multi-slice depth-of interaction (DOI) MR-compatible PET system. The MR compatible PET system is for imaging small animals such as mouse or rat. The PET system employs previously reported concept of the DOI block detectors made of scintillators, optical fibers, and multi-channel position sensitive photo-multiplier tubes (PSPMTs). The scintillator was changed from LSO to MLS. The size of a single MLS was enlarged to 2.5mm × 3.5mm × 3.5mm to increase the system sensitivity. Eight MLSs were combined to form a DOI block detector and connected to four optical fibers via light guides. Thirty two sets of block detectors were arranged in a circular ring of which diameter is 51mm. Full sets of the DOI block detectors were fabricated and arranged in the ring. Position histograms showed reasonable separations for all block detectors. The MR compatible PET system will have 3 imaging slice, two layers DOI detection capability, and spatial resolutions of around 2mm FWHM in transaxail and axial directions.

Original languageEnglish
Pages (from-to)3810-3813
Number of pages4
JournalIEEE Nuclear Science Symposium Conference Record
Publication statusPublished - 2004
Externally publishedYes
Event2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy
Duration: 2004 Oct 162004 Oct 22

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'Design and construction of a multi-slice, depth-of-interaction MR-compatible PET'. Together they form a unique fingerprint.

Cite this