Development of a compact and fast response detector using an Yb:Lu 2O3 scintillator for lifetime sensitive positron emission tomography

Y. Taira, R. Kuroda, M. Tanaka, N. Oshima, B. E. O'Rourke, R. Suzuki, H. Toyokawa, K. Watanabe, T. Yanagida, H. Yagi, T. Yanagitani

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Abstract

We propose a method for obtaining three-dimensional imaging measurements of the defect distribution inside industrial materials by measuring positron lifetimes, in addition to using the imaging technique of positron emission tomography. A compact and fast response detector that uses an Yb 3+-doped Lu2O3 scintillator and a photomultiplier tube was developed and tested. Yb3+ charge transfer luminescence exhibits a fast response in the ultraviolet and visible regions. The first measurement of the positron lifetime for a bulk material using an Yb:Lu2O3 scintillator was carried out. The lifetime of positrons created inside an yttria-stabilized zirconia block via pair production produced by ultrashort photon pulses was successfully measured.

Original languageEnglish
Article numberC05036
JournalJournal of Instrumentation
Volume9
Issue number5
DOIs
Publication statusPublished - May 1 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mathematical Physics
  • Instrumentation

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