Thick Noble Gas Targets Prepared by Ion Implantation

  • W. Cole
  • G. W. Grime


Targets of up to 5 μgcm-2 He and 15 μgcm-2 Ne have been prepared by ion implantation into Ta. In order to achieve the large doses, the targets were cooled to 77°K during the implantation and the beam was swept over the target to avoid hot spots. The energy used was 60 keV at currents in the region of 6 μAcm-2.

The technique of preparing nuclear bombardment targets by ion implantation is not new(1, 2), but has not been widely used because the amount of implanted material which may be collected is small compared with conventional target preparation techniques. In the case of inert gases, however, implantation is the only method available for preparing foil type targets, and so it would be desirable to try to increase the amounts of these materials which may be collected.

This paper is a preliminary report of the work in progress at this laboratory to prepare targets of inert gases, particularly He and Ne, containing useful concentrations of target material.


Surface Barrier Detector Outer Peak Backscatter Particle Large Energy Loss Helium Irradiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. (1).
    Santry, D. C., Proc. INTDS Target Conference (Chalk River, 1974), p1.Google Scholar
  2. (2).
    Arnell, S. E., Nucl. Phys. 24, 500 (1961).CrossRefGoogle Scholar
  3. (3).
    Almén and Bruce, Nucl. Inst. and Meth. 11, 257 (1961).CrossRefGoogle Scholar
  4. (4).
    Dusham, S., Scientific Foundations of Vacuum Technique, 2nd ed., p. 570 (Wiley, New York, 1962).Google Scholar
  5. (5).
    Kohl, W. H., Handbook of Materials and Techniques for Vacuum Devices, p. 612 (Reinhold, New York, 1967).Google Scholar
  6. (6).
    Hill, K. J. and Nelson, R. S., Nucl. Instr. and Meth. 38, 15 (1965).CrossRefGoogle Scholar
  7. (7).
    Terreault, B., St. Jacques, R. G., Veilleux, G., L’Ecuyer, L., Brassard, C., and Cardinal, C., Helium Irradiations of Copper at 1 to 25 keV: Range Profils, Reemission, and Blistering.Google Scholar
  8. (8).
    Allen, K. W., Dolan, S. P., Holmes, A. R., Symons, T. J. M., Watt, F., Zimmerman, C. M., Litherland, A. E., and Sandorfi, A., Cryo-pumped Gas Target for the Study of Radioactive capture reactions.Google Scholar

Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • W. Cole
    • 1
  • G. W. Grime
    • 1
  1. 1.Department of Nuclear PhysicsUniversity of OxfordOxfordUK

Personalised recommendations