Production of convoy electrons by foil-excited He ions

M. Mannami, K. Kimura, Y. Susuki, M. Hasegawa, Y. Mizuno, M. Tsuji, N. Sakamoto, H. Ogawa, I. Katayama, T. Noro, H. Ikegami

Research output: Contribution to journalArticlepeer-review


Convoy electrons are studied, which are produced by the transmission of 50 MeV 3He2+ ions through two thin foils of carbon, where the downstream foil is exposed to the beam transmitted through the upstream foil. By eliminating the convoy electrons emitted from the upstream foil by applying an electric field, the convoy electrons produced at the downstream foil are studied. The yields of convoy electrons produced at the downstream foil, which has a thickness of less than the mean free path for convoy electrons (∼ 3 μg/cm2), are about twice as large as those emitted from a single foil of the same thickness. The increase is attributed to the convoy electrons produced by electron loss to the continuum (ELC) of Rydberg states of 3He+ ions produced at the upstream foil.

Original languageEnglish
Pages (from-to)114-119
Number of pages6
JournalNuclear Inst. and Methods in Physics Research, B
Issue number1-4
Publication statusPublished - Apr 1 1992

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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