Design and development of 1 mm resolution PET detectors with position-sensitive PMTs

Yiping Shao, Simon R. Cherry, Arion F. Chatziioannou

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

We report our investigation of a positron emission tomography (PET) detector with 1m spatial resolution. The prototype detector consists of a 9 × 9 array of 1 × 1 × 10mm3 lutetium oxyorthosilicate (LSO) scintillator crystals coupled to Hamamatsu R5900-M64 or R5900-C12 position sensitive PMT by either optical fibers or an optical fiber bundle. With a 511eV gamma source, the intrinsic spatial resolution of this detector was measured to be 0.92mm. All crystals were well resolved in the flood source histogram. The measured energy and coincidence timing resolutions were around 26% and 4ns, respectively, demonstrating that sufficient light can be extracted from these small crystals for PET applications.

Original languageEnglish (US)
Pages (from-to)486-490
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume477
Issue number1-3
DOIs
Publication statusPublished - Jan 21 2002

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Keywords

  • Gamma detector
  • Multi-channel photomultiplier (MC-PMT)
  • Optical fiber bundle
  • Position-sensitive photomultiplier (PS-PMT)
  • Positron emission tomography (PET)
  • Scintillator

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

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