Performance test of a LSO-APD PET module in a 9.4 Tesla magnet

B. Pichler; E. Lorenz; R. Mirzoyan; W. Pimpl; F. Roder; M. Schwaiger; S. I. Ziegler

Performance test of a LSO-APD PET module in a 9.4 Tesla magnet

B. Pichler, E. Lorenz, R. Mirzoyan, W. Pimpl, F. Roder, M. Schwaiger, S. I. Ziegler

TUM Emeriti of Excellence

Technische Universität München

Publikation: Konferenzbeitrag › Papier › Begutachtung

87 Zitate (Scopus)

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.

Originalsprache	Englisch
Seiten	1237-1239
Seitenumfang	3
Publikationsstatus	Veröffentlicht - 1997
Veranstaltung	Proceedings of the 1997 IEEE Nuclear Science Symposium - Albuquerque, NM, USA Dauer: 9 Nov. 1997 → 15 Nov. 1997

Konferenz

Konferenz	Proceedings of the 1997 IEEE Nuclear Science Symposium
Ort	Albuquerque, NM, USA
Zeitraum	9/11/97 → 15/11/97

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title = "Performance test of a LSO-APD PET module in a 9.4 Tesla magnet",

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.",

author = "B. Pichler and E. Lorenz and R. Mirzoyan and W. Pimpl and F. Roder and M. Schwaiger and Ziegler, {S. I.}",

year = "1997",

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note = "Proceedings of the 1997 IEEE Nuclear Science Symposium ; Conference date: 09-11-1997 Through 15-11-1997",

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T1 - Performance test of a LSO-APD PET module in a 9.4 Tesla magnet

AU - Pichler, B.

AU - Lorenz, E.

AU - Mirzoyan, R.

AU - Pimpl, W.

AU - Roder, F.

AU - Schwaiger, M.

AU - Ziegler, S. I.

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

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M3 - Paper

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T2 - Proceedings of the 1997 IEEE Nuclear Science Symposium

Y2 - 9 November 1997 through 15 November 1997

ER -

Performance test of a LSO-APD PET module in a 9.4 Tesla magnet

Abstract

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