A new two-dimensional angular correlation of annihilation radiation apparatus using position-sensitive photomultiplier tubes

Yasuyoshi Nagai, Haruo Saito, Tetsuya Iwata, Yasuyuki Nagashima, Toshio Hyodo, Hiroshi Uchida, Tomohide Omura

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A new two-dimensional angular correlation of annihilation radiation apparatus is described. Position-sensitive photomultiplier tubes coupled with two-dimensional arrays of small BGO scintillator blocks make simple and compact position-sensitive γ-ray detectors. With a sample-detector distance of 5 m, an angular resolution of 1.1 mrad FWHM and a coincidence count rate of ∼2.4 cps per mCi are obtained. Its performance is demonstrated by the result of a test measurement for KI crystal in which non-localized positronium exists at low temperatures.

Original languageEnglish
Pages (from-to)629-632
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume378
Issue number3
DOIs
Publication statusPublished - 1996 Aug 21
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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