Fundamental performance of a new planer PEM

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

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトル2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
ページ3519-3520
ページ数2
DOI
出版ステータスPublished - 2012 12 1
外部発表はい
イベント2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 - Anaheim, CA, United States
継続期間: 2012 10 292012 11 3

出版物シリーズ

名前IEEE Nuclear Science Symposium Conference Record
ISSN(印刷版)1095-7863

Other

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

ASJC Scopus subject areas

  • 放射線
  • 核物理学および高エネルギー物理学
  • 放射線学、核医学およびイメージング

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