Abstract
This is a positron camera detector design study using quadrant sharing of circular phototubes and optically cross-coupled BGO scintillation crystals. The goal is to design a very high spatial resolution detector using the larger and less expensive circular phototubes, so that the high production cost of high spatial resolution, multi-slice positron cameras may be substantially lowered. Theoretical calculations and experimental studies have been performed using 19mm diameter phototubes. The study shows that (a) BGO detector-pitch in the range of 2.7×2.7mm to 3.0×3.0mm (transaxial x axial) can be decoded with these 19mm diameter phototubes, and (b) it is possible to achieve relatively uniform light-collection efficiency for all the BGO crystals in the block with this design, even though there are relatively large air-gaps between circular phototubes. This study demonstrates that very high spatial resolution, approaching the theoretical resolution of PET imaging, can be achieved at a substantially lower cost than that of current commercial PET detector designs.
Original language | English (US) |
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Pages | 1347-1351 |
Number of pages | 5 |
State | Published - 1995 |
Event | Proceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4) - Norfolk, VA, USA Duration: Oct 30 1994 → Nov 5 1994 |
Other
Other | Proceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4) |
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City | Norfolk, VA, USA |
Period | 10/30/94 → 11/5/94 |
ASJC Scopus subject areas
- Radiation
- Nuclear and High Energy Physics
- Radiology Nuclear Medicine and imaging