Investigation of positron generation by relativistic electrons in aligned crystals

B. N. Kalinin, G. A. Naumenko, A. P. Potylitsin, V. A. Verzilov, I. E. Vnukov, K. Yoshida, K. Goto, I. Endo, T. Isshiki, T. Kondo, K. Matsukado, T. Takashima, T. Takahashi, H. Okuno, K. Nakayama

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


An experiment to investigate the positron production efficiency by electrons moving in axially oriented tungsten and silicon single crystals has been conducted. The electron energy was 1.2 GeV. The positron yield from the aligned crystal ∼0.35 r.l. in thickness was 2.8 times that from the randomly oriented crystals for tungsten and 1.8 times higher for silicon. A simple model has been designed to simulate positron production by coherent bremsstrahlung (CB) photons. Comparison of the calculation with the experiment has shown that most contribution to the positron production in thick crystals comes from CB.

Original languageEnglish
Pages (from-to)209-220
Number of pages12
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1-2
Publication statusPublished - 2 Oct 1998

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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