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 3.7×3.7×12.0 mm3 lutetium oxyorthosilicate (LSO) crystal coupled to the 3 mm diam. active surface of an APD was exposed to 511 keV gamma rays from a 22Na 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.
Original language | English |
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Pages | 1237-1239 |
Number of pages | 3 |
State | Published - 1997 |
Event | Proceedings of the 1997 IEEE Nuclear Science Symposium - Albuquerque, NM, USA Duration: 9 Nov 1997 → 15 Nov 1997 |
Conference
Conference | Proceedings of the 1997 IEEE Nuclear Science Symposium |
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City | Albuquerque, NM, USA |
Period | 9/11/97 → 15/11/97 |