A 32-channel LSO matrix coupled to a monolithic 4×8 APD array for high resolution PET

B. J. Pichler; G. Boening; M. Rafecas; W. Pimpl; M. Schwaiger; S. I. Ziegler

A 32-channel LSO matrix coupled to a monolithic 4×8 APD array for high resolution PET

B. J. Pichler, G. Boening, M. Rafecas, W. Pimpl, M. Schwaiger, S. I. Ziegler

TUM Emeriti of Excellence

Technical University of Munich

Research output: Contribution to conference › Paper › peer-review

6 Scopus citations

Abstract

Avalanche Photodiodes (APD) offer new design options for high resolution PET detectors. New, monolithic arrays of 4×8 densely packed APDs (each with a 1.6 mm × 1.6 mm sensitive area) were developed and evaluated for their suitability to read out 32 small (2 mm × 2 mm × 6 mm) LSO crystals. The gain of the APDs was about 10, it's variation within an array was less than 9%. The average dark current was 8 nA per diode pixel, the detector capacitance was 10...12 pF. Energy resolution was 16.6% for gamma rays with 511 keV. In the matrix of 32 crystals coupled to the APD array, light crosstalk was only 8%. The monolithic APD arrays proved to be stable and may, in combination with LSO crystals, facilitate the design of various detector geometries, such as panels or multi-layer modules.

Original language	English
Pages	14/16
State	Published - 2000
Event	2000 IEEE Nuclear Science Symposium Conference Record - Lyon, France Duration: 15 Oct 2000 → 20 Oct 2000

Conference

Conference	2000 IEEE Nuclear Science Symposium Conference Record
Country/Territory	France
City	Lyon
Period	15/10/00 → 20/10/00

Cite this

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title = "A 32-channel LSO matrix coupled to a monolithic 4×8 APD array for high resolution PET",

abstract = "Avalanche Photodiodes (APD) offer new design options for high resolution PET detectors. New, monolithic arrays of 4×8 densely packed APDs (each with a 1.6 mm × 1.6 mm sensitive area) were developed and evaluated for their suitability to read out 32 small (2 mm × 2 mm × 6 mm) LSO crystals. The gain of the APDs was about 10, it's variation within an array was less than 9%. The average dark current was 8 nA per diode pixel, the detector capacitance was 10...12 pF. Energy resolution was 16.6% for gamma rays with 511 keV. In the matrix of 32 crystals coupled to the APD array, light crosstalk was only 8%. The monolithic APD arrays proved to be stable and may, in combination with LSO crystals, facilitate the design of various detector geometries, such as panels or multi-layer modules.",

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T1 - A 32-channel LSO matrix coupled to a monolithic 4×8 APD array for high resolution PET

AU - Pichler, B. J.

AU - Boening, G.

AU - Rafecas, M.

AU - Pimpl, W.

AU - Schwaiger, M.

AU - Ziegler, S. I.

PY - 2000

Y1 - 2000

N2 - Avalanche Photodiodes (APD) offer new design options for high resolution PET detectors. New, monolithic arrays of 4×8 densely packed APDs (each with a 1.6 mm × 1.6 mm sensitive area) were developed and evaluated for their suitability to read out 32 small (2 mm × 2 mm × 6 mm) LSO crystals. The gain of the APDs was about 10, it's variation within an array was less than 9%. The average dark current was 8 nA per diode pixel, the detector capacitance was 10...12 pF. Energy resolution was 16.6% for gamma rays with 511 keV. In the matrix of 32 crystals coupled to the APD array, light crosstalk was only 8%. The monolithic APD arrays proved to be stable and may, in combination with LSO crystals, facilitate the design of various detector geometries, such as panels or multi-layer modules.

AB - Avalanche Photodiodes (APD) offer new design options for high resolution PET detectors. New, monolithic arrays of 4×8 densely packed APDs (each with a 1.6 mm × 1.6 mm sensitive area) were developed and evaluated for their suitability to read out 32 small (2 mm × 2 mm × 6 mm) LSO crystals. The gain of the APDs was about 10, it's variation within an array was less than 9%. The average dark current was 8 nA per diode pixel, the detector capacitance was 10...12 pF. Energy resolution was 16.6% for gamma rays with 511 keV. In the matrix of 32 crystals coupled to the APD array, light crosstalk was only 8%. The monolithic APD arrays proved to be stable and may, in combination with LSO crystals, facilitate the design of various detector geometries, such as panels or multi-layer modules.

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M3 - Paper

AN - SCOPUS:0034593792

SP - 14/16

T2 - 2000 IEEE Nuclear Science Symposium Conference Record

Y2 - 15 October 2000 through 20 October 2000

ER -

A 32-channel LSO matrix coupled to a monolithic 4×8 APD array for high resolution PET

Abstract

Conference

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