Development of a pulsing system with the linac based slow positron beam

M. Tashiro, Y. Honda, T. Yamaguchi, P. K. Pujari, N. Kimura, T. Kozawa, S. Tagawa

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

A pulsing system of a slow positron beam has been developed to measure positron lifetime for thin films. The pulsing apparatus consists of positron storage section, chopper and bunching section. The storage section reduces the energy spread and makes a quasi-continuous beam. Positrons are bunched by suitable time-varying voltage which is produced by an arbitrary waveform generator and amplified. The time width of bunched positrons has reached ∼550 ps (FWHM) with positron mean energy of ∼100 eV at present.

Original languageEnglish
Pages (from-to)664-666
Number of pages3
JournalMaterials Science Forum
Volume363-365
DOIs
Publication statusPublished - 2001
Externally publishedYes
Event12th International Conference on Positron Annihilation - Munchen, Germany
Duration: 2000 Aug 62000 Aug 12

Keywords

  • Lifetime
  • Linac
  • Pulse
  • Slow positron beam
  • Storage
  • Stretching

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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