Harris, J. M. and Nicolet, M-A. (1975) Energy straggling of 4He ions below 2.0 MeV in Al, Ni, and Au. Physical Review B, 11 (3). pp. 1013-1019. ISSN 0163-1829 http://resolver.caltech.edu/CaltechAUTHORS:HARprb75
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Energy straggling of 4He ions has been measured in thin films of Ni, Al, and Au. The observed straggling is roughly proportional to the square root of thickness and appears to have a slight energy dependence for all these materials. The results are compared with predictions of the theories of Bohr, Lindhard and Scharff, and of Chu and Mayer. Both the Ni and Au results are below the predictions of Bohr and are above the predictions of Chu and Mayer, and of Lindhard and Scharff. The Al measurements are above predictions of all these theories.
|Additional Information:||©1975 The American Physical Society. Received 15 July 1974; revised 14 October 1974. Work supported by the Office of Naval Research (L. Cooper). We are grateful to J.S. Feng for supplying some samples and suggesting the use of markers and would like to thank W.K. Chu for providing his theoretical calculations. We also appreciate the assistance of D.S. Harris, M.E. Rienstra, and L.G. Scroggs in the preparation of the manuscript.|
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|Deposited By:||Tony Diaz|
|Deposited On:||11 Dec 2006|
|Last Modified:||26 Dec 2012 09:21|
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