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Three-photon coincidence and lifetime apparatus for positronium in gases

Authors
Journal
Nuclear Instruments and Methods
0029-554X
Publisher
Elsevier
Publication Date
Volume
37
Identifiers
DOI: 10.1016/0029-554x(65)90336-8
Disciplines
  • Physics

Abstract

Abstract Three-photon coincidence equipment for studies on positron annihilation in gases is described. The detectors are simple photomultipliers and plastic phosphors which provide shorter pulses and smaller resolving time than NaI phosphors. Side-channel analyzers were incorporated to handle these shorter pulses. Equipment for associated studies of positron lifetime is also described. The range is 360 ns with a resolution of 3.5 ns.

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