Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography

Purushottam Dokhale; Christopher Stapels; James Christian; Yongfeng Yang; Simon R Cherry; William Moses; Kanai Shah

doi:10.1109/NSSMIC.2009.5401653

Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography

Purushottam Dokhale, Christopher Stapels, James Christian, Yongfeng Yang, Simon R Cherry, William Moses, Kanai Shah

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 Scopus citations

Abstract

We present the performance of a compact PET detector module with a depth-of-interaction (DOI) capab ility based on a LYSO scintillator array coupled at both ends to CMOS solid state photomultipliers (SSPM). In this paper we present flood imaging, energy resolution, coincidence timing and DOI resolution results for a prototype PET detector module consisting of a 4 x 4 block of LYSO scintillators, each crystal measuring 1.43 x 1.43 x 20 mm ³ coupled to 4 x 4 array of SSPMs, each SSPM element is 1.5x1.5 mm². All 16 elements in the flood image recorded with 22Na gamma-ray source at all depths were clearly visible and well separated from each other. The measured FWHM energy resolution with 511 keV gamma rays for all crystals in the array ranged between 13% - 17% (FWHM). The timing resolution measured for the complete detector module in coincidence with LYSO-PMT detector was 2.3 ns (FWHM) and for the individual crystals ranged between 1.1ns - 1.3ns (FWHM). The DOI resolution measured for all crystals in the array was ranged between 2.3mm - 2.9mm.

Original language	English (US)
Title of host publication	IEEE Nuclear Science Symposium Conference Record
Pages	2809-2812
Number of pages	4
DOIs	https://doi.org/10.1109/NSSMIC.2009.5401653
State	Published - 2009
Event	2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009 - Orlando, FL, United States Duration: Oct 25 2009 → Oct 31 2009

Other

Other	2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Country	United States
City	Orlando, FL
Period	10/25/09 → 10/31/09

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging

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Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography. / Dokhale, Purushottam; Stapels, Christopher; Christian, James; Yang, Yongfeng; Cherry, Simon R; Moses, William; Shah, Kanai.

IEEE Nuclear Science Symposium Conference Record. 2009. p. 2809-2812 5401653.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Dokhale, P, Stapels, C, Christian, J, Yang, Y, Cherry, SR, Moses, W & Shah, K 2009, Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography. in IEEE Nuclear Science Symposium Conference Record., 5401653, pp. 2809-2812, 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009, Orlando, FL, United States, 10/25/09. https://doi.org/10.1109/NSSMIC.2009.5401653

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abstract = "We present the performance of a compact PET detector module with a depth-of-interaction (DOI) capab ility based on a LYSO scintillator array coupled at both ends to CMOS solid state photomultipliers (SSPM). In this paper we present flood imaging, energy resolution, coincidence timing and DOI resolution results for a prototype PET detector module consisting of a 4 x 4 block of LYSO scintillators, each crystal measuring 1.43 x 1.43 x 20 mm 3 coupled to 4 x 4 array of SSPMs, each SSPM element is 1.5x1.5 mm2. All 16 elements in the flood image recorded with 22Na gamma-ray source at all depths were clearly visible and well separated from each other. The measured FWHM energy resolution with 511 keV gamma rays for all crystals in the array ranged between 13% - 17% (FWHM). The timing resolution measured for the complete detector module in coincidence with LYSO-PMT detector was 2.3 ns (FWHM) and for the individual crystals ranged between 1.1ns - 1.3ns (FWHM). The DOI resolution measured for all crystals in the array was ranged between 2.3mm - 2.9mm.",

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