Ionization of rare-gas targets by collisions of fast highly charged projectiles
Ionization of rare-gas targets by collisions of fast highly charged projectiles
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DOI：
10.1103/physreva.23.2331
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发表时间：
1981-05
影响因子：
2.9
通讯作者：
A. Schlachter;K. Berknèr;W. Graham;R. Pyle;P. Schneider;K. Stalder;J. W. Stearns;J. Tanis;R. Olson
中科院分区：
文献类型：
--
作者：
A. Schlachter;K. Berknèr;W. Graham;R. Pyle;P. Schneider;K. Stalder;J. W. Stearns;J. Tanis;R. Olson
本文从实验和理论两个方面确定了稀有气体靶慢离子或慢电子电荷产生的净电离截面。我们实验研究了能量从310keV/amu到4.75 MeV/amu以及电荷态在+4到+54范围内的C、Fe、Nb和Pb核在这些靶中的电离。用经典轨道蒙特卡罗方法计算了碰撞能量为1-5 MeV/amu、荷电状态为+5~+80的弹丸稀有气体的电离截面。在这种广泛的条件下，实验和理论的一致性一般都在2倍以内。此外，对于给定的稀有气体靶，当绘制为电荷状态除以每个核子的能量除以电荷状态的横截面时，净电离截面缩减为一条公共曲线。
In this paper, 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. In addition, 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.