Development of Pr:LuAG scintillator array and assembly for positron emission mammography

Takayuki Yanagida, Akira Yoshikawa, Yuui Yokota, Kei Kamada, Yoshiyuki Usuki, Seiichi Yamamoto, Masayasu Miyake, Mamoru Baba, Kazuaki Kumagai, Katsuhisa Sasaki, Masatoshi Ito, Naoto Abe, Yutaka Fujimoto, Shuji Maeo, Yuki Furuya, Hidehiko Tanaka, Akihiro Fukabori, Targino Rodrigues Dos Santos, Motoharu Takeda, Noriaki Ohuchi

Research output: Contribution to journalArticlepeer-review

186 Citations (Scopus)

Abstract

In order to detect the breast cancer at the early stage with high efficiency, we intend to develop positron emission mammography (PEM), using Pr:LuAG single crystal as a scintillator of this scanner. PEM has the same mechanism of PET, where two 511 keV annihilation gamma-rays are detected by two gamma cameras at opposite side, and reconstruction of the data shows the position of the cancer with malignancy grades. After cutting and polishing processes for each crystal to a physical dimensions of 2.1 × 2.1 × 15 mm3, Pr:LuAG array covered with BaSO4 reflector was used as a sensor head. The one camera unit consisted of 20 × 64 pixels optically coupled with three H8500-03 multi anode PMTs. Our PEM required four cameras at each side. Finally, eight cameras were installed in both sides of the prototype instrument and the spatial resolution was evaluated using the 18F in the breast phantom.

Original languageEnglish
Article number5485089
Pages (from-to)1492-1495
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume57
Issue number3 PART 2
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • Positron emission tomography (PET)
  • Praseodymium
  • Radiation detectors
  • Scintillation detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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