Performance test of a LSO-APD PET module in a 9.4 Tesla magnet
- 22 November 2002
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 1237-1239 vol.2
- https://doi.org/10.1109/nssmic.1997.670533
Abstract
One of the future goals is to install a PET detector in a magnetic field for a combined PET/MRT device. Thus, in this study the influence of a 9.4 Tesla magnetic field on a small scintillation detector with avalanche photodiode (APD) readout was tested. The detector, comprising a 3.7/spl times/3.7/spl times/12.0 mm/sup 3/ lutetium oxyorthosilicate (LSO) crystal coupled to the 3 mm O active surface of an APD was exposed to 511 keV gamma rays from a /sup 22/Na source. The energy resolution at room temperature was 14.4% (FWHM). Measurements of gain and energy resolution were performed outside and in the center of a homogeneous magnetic field of 9.4 Tesla. Both, the gain and energy resolution were unaffected by the magnetic field being either parallel or orthogonal to the electrical field of the APD. These results prove the potential of using APDs in a combined PET/MRT imaging system.Keywords
This publication has 8 references indexed in Scilit:
- Studies with a prototype high resolution PET scanner based on LSO-APD modulesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Development of a PET detector system compatible with MRI/NMR systemsIEEE Transactions on Nuclear Science, 1997
- A small animal PET prototype based on LSO crystals read out by avalanche photodiodesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1997
- Combined MRI-PET scanner: a Monte Carlo evaluation of the improvements in PET resolution due to the effects of a static homogeneous magnetic fieldIEEE Transactions on Nuclear Science, 1996
- Some studies of avalanche photodiode readout of fast scintillatorsIEEE Transactions on Nuclear Science, 1995
- Feasibility study of an avalanche photodiode readout for a high resolution PET with nsec time resolutionIEEE Transactions on Nuclear Science, 1995
- Fast readout of plastic and crystal scintillators by avalanche photodiodesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1994
- Cerium-doped lutetium oxyorthosilicate: a fast, efficient new scintillatorIEEE Transactions on Nuclear Science, 1992