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Phys. Rev. A 54, 5027 - 5030 (1996)

Measurements of energy losses of 10-MeV neutral hydrogen atoms in carbon foils

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H. Ogawa and N. Sakamoto
Department of Physics, Nara Women's University, Nara 630, Japan

I. Katayama
Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo 188, Japan

Y. Haruyama and M. Saito
Laboratory of Applied Physics, Kyoto Prefectural University, Kyoto 606, Japan

K. Yoshida
Department of Nuclear Engineering, Kyoto University, Kyoto 606, Japan

M. Tosaki
Radio Isotope Research Center, Kyoto University, Kyoto 606, Japan

Y. Susuki and K. Kimura
Department of Engineering Science, Kyoto University, Kyoto 606, Japan

Received 18 April 1996

Mean energy losses of 10.4-MeV neutral hydrogen atoms penetrated through thin carbon foils of 3.7–13.4 μg/cm2 were measured using a high-resolution magnetic spectrograph. The measured particles are those entered into the carbon foil as H0 and emerged from it as H0. From the attenuation measurement of H0 in the foils, we can regard the energy losses as those of H0 in a frozen charge state. The measured stopping power of carbon for 10.4-MeV H0 is 21.3±1.8 eV/(μg/cm2) and is about one-half that for H+ at the same speed. This result agrees well with the theoretical predictions based on the first-order Born approximation. © 1996 The American Physical Society.


©1996 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.54.5027
DOI: 10.1103/PhysRevA.54.5027
PACS: 34.50.Bw, 34.70.+e, 79.20.Rf

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