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Title: Creation of mixed beam from alloy target and couple of pure targets with laser

To create mixed species ion beam with laser pulses, we investigated charge state distributions of plasma formed from both Al-Fe alloy targets and pure Al and Fe targets placed close together. With two targets, we observed that the two kinds of atoms were mixed when the interval of two laser pulses was large enough (40 μs). On the other hand, when the interval was 0.0 μs, we observed fewer Fe ions and they did not mix well with the Al ions. The two species were mixed well in the plasma from the alloy target. Furthermore, we observed that specific charge states of Fe ions increased. From the results, it was determined that we can use two pure targets to mix two species whose difference of the drift velocity is large. On the other hand, we must use an alloy target when the drift velocities of the species are close.
Authors:
;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ; ;  [1] ; ;  [7] ;  [8]
  1. Tokyo Institute of Technology, Yokohama, Kanagawa (Japan)
  2. (Japan)
  3. Cornell University, Ithaca, New York 14850 (United States)
  4. University of Michigan, Ann Arbor, Michigan 48109 (United States)
  5. Waseda University, Shinjuku, Tokyo (Japan)
  6. Kyoto University, Uji, Kyoto (Japan)
  7. Brookhaven National Laboratory, Upton, New York 11973 (United States)
  8. Institute of Modern Physics, Lanzhou, Gansu (China)
Publication Date:
OSTI Identifier:
22253828
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALLOYS; ALUMINIUM IONS; CHARGE STATES; ION BEAMS; IRON IONS; LASERS; PLASMA