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Experimentation with thin single crystal W foils as slow positron transmission mode moderators |
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| Authors: | N Zafar J Chevallier F M Jacobsen M Charlton G Laricchia |
| Institution: | (1) Department of Physics and Astronomy, University College London, Gower Street, WC1E6BT London, UK;(2) The Physics Institute, University of Aarhus, DK-8000 Aarhus - C, Denmark |
| Abstract: | Results are reported on the performance of single crystal W foils as positron moderators. A simple annealing technique has been developed which gives efficiencies comparable to those obtained by in situ heating under high vacuum conditions. |
| Keywords: | 78 70 81 40 07 77 |
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