Fine-structure characteristics in the emittance images of a strongly focusing He+ beam

M. Sasao, T. Kobuchi, M. Kisaki, H. Takahashi, A. Okamoto, S. Kitajima, O. Kaneko, K. Tsumori, K. Shinto, M. Wada

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The phase space distribution of a strongly focused He+ ion beam source equipped with concave multiaperture electrodes was measured using a pepper-pot plate and a Kapton foil. The substructure of 301 merging He beamlets was clearly observed on a footprint of pepper-pot hole at the beam waist, where the beam density was 500 mA/ cm2. The position and the width of each beamlet substructure show the effect of interference of beamlets with surrounding one.

Original languageEnglish
Article number02B115
JournalReview of Scientific Instruments
Volume81
Issue number2
DOIs
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Instrumentation

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