Статья

Ionization of rare-gas targets by collisions of fast highly charged projectiles

A. S. SchlachterLawrence Berkeley Laboratory, University of California, Berkeley, California 94720K.H. BerknerLawrence Berkeley Laboratory, University of California, Berkeley, California 94720W. G. GrahamLawrence Berkeley Laboratory, University of California, Berkeley, California 94720R.V. PyleLawrence Berkeley Laboratory, University of California, Berkeley, California 94720Peter SchneiderLawrence Berkeley Laboratory, University of California, Berkeley, California 94720K. R. StalderLawrence Berkeley Laboratory, University of California, Berkeley, California 94720J. W. StearnsLawrence Berkeley Laboratory, University of California, Berkeley, California 94720J. A. TanisLawrence Berkeley Laboratory, University of California, Berkeley, California 94720R. E. OlsonLawrence Berkeley Laboratory, University of California, Berkeley, California 94720

1981en

ABI

Аннотация

We have determined the net ionization cross section for total slow-ion or slow-electron charge production in rare-gas targets by passage of a fast projectile both experimentally and theoretically. We have experimentally studied ionization in these targets by C, Fe, Nb, and Pb projectiles with energies ranging from 310 keV/amu to 4.75 MeV/amu and for charge states in the range of + 4 to + 54. Theoretical calculations employing the classical-trajectory Monte Carlo method are used to calculate ionization cross sections in the rare gases for projectiles at collision energies of 1-5 MeV/amu with charge states + 5 to + 80. Experiment and theory generally agree within a factor of 2 over this wide range of conditions. For a given rare-gas target, the cross sections for net ionization reduce to a common curve when plotted as cross section divided by charge state versus energy per nucleon divided by charge state.

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Идентификаторы

DOI: 10.1103/physreva.23.2331

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Цитирований: 2Использованных источников: 0

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