Taper angle dependence of the focusing effect of high energy heavy ion beams by glass capillaries

T. Nebiki, D. Sekiba, H. Yonemura, M. Wilde, S. Ogura, H. Yamashita, M. Matsumoto, K. Fukutani, T. Okano, J. Kasagi, Y. Iwamura, T. Itoh, S. Kuribayashi, H. Matsuzaki, T. Narusawa

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

The 6.4 MeV 15N2+ ion beams are focused using glass capillary optics. The transmitted beam includes ions which have suffered slight energy loss. The areal density of the transmitted beam is enhanced by approximately 10 times, and the enhancement factor does not depend on the incident beam current. The NRA spectrum intensity decreases with the increase of the capillary taper angle. These results all together suggest that the nuclear forward scattering is more significant in the focusing mechanism than the low energy ions case.

Original languageEnglish
Pages (from-to)1324-1327
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume266
Issue number8
DOIs
Publication statusPublished - 2008 Apr
Externally publishedYes

Keywords

  • Glass capillary
  • Heavy ion
  • Hydrogen detection
  • Ion beam focusing
  • Micro beam
  • NRA

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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