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Detector for positronium temperature measurements by two-photon angular correlation.
Cecchini, G G; Jones, A C L; Fuentes-Garcia, M; Adams, D J; Austin, M; Membreno, E; Mills, A P.
Affiliation
  • Cecchini GG; Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
  • Jones ACL; Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
  • Fuentes-Garcia M; Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
  • Adams DJ; College of Natural and Agricultural Sciences Machine Shop, University of California, Riverside, California 92521, USA.
  • Austin M; Department of Physics, Marquette University, Milwaukee, Wisconsin 53233, USA.
  • Membreno E; Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
  • Mills AP; Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
Rev Sci Instrum ; 89(5): 053106, 2018 May.
Article in En | MEDLINE | ID: mdl-29864868
ABSTRACT
We report on the design and characterization of a modular γ-ray detector assembly developed for accurate and efficient detection of coincident 511 keV back-to-back γ-rays following electron-positron annihilation. Each modular detector consists of 16 narrow lutetium yttrium oxyorthosilicate scintillators coupled to a multi-anode Hamamatsu H12700B photomultiplier tube. We discuss the operation and optimization of 511 keV γ-ray detection resulting from testing various scintillators and detector arrangements concluding with an estimate of the coincident 511 keV detection efficiency for the intended experiment and a preliminary test representing one-quarter of the completed array.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Rev Sci Instrum Year: 2018 Document type: Article Affiliation country:
Fulltext
Add to My VHL
Print
XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Rev Sci Instrum Year: 2018 Document type: Article Affiliation country: