Fundamental performance of a new planer PEM

Shigeki Ito, Hiroki Sato, Yoshiyuki Usuki, Masayasu Miyake, Kazuaki Kumagai, Mamoru Baba, Masatoshi Ito, Seiichi Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Positron Emission Mammograph (PEM) with a pair of planer detectors dedicated for breast cancer detection is developed under collaborations of Tohoku University, Kobe City Collage of Technology, and Furukawa Co., Ltd. It uses thin crystals made of a scintillator Pr:Lu3Al5O12 (Pr:LuAG) of 2.1×2.1×15.0 mm in size combined with H8500 position sensitive Photo multi tubes (PMTs) from Hamamatsu. The PEM system is comprised of two opposing detectors that have 140×200 cm2 field of view (FOV). We present its basic architecture with fundamental performance, such as spatial resolution, time resolution, energy resolution, and data acquisition count rate. The Spatial resolution measured using a 22Na point sauce was found to be 1.1 mm FWHM for image planes parallel to the detector faces. Time resolution was 3.1 ns FWHM. And, energy resolution was 11.6 % FWHM (@511 keV) at the center of detector blocks. Coincident count rate was improved dramatically for optimizing energy windows level and implementation a new offset correction method.

Original languageEnglish
Title of host publication2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
Pages3519-3520
Number of pages2
DOIs
Publication statusPublished - 2012 Dec 1
Event2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 - Anaheim, CA, United States
Duration: 2012 Oct 292012 Nov 3

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
CountryUnited States
CityAnaheim, CA
Period12/10/2912/11/3

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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