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This article is cited in 2 scientific papers (total in 2 papers)
PLASMA, HYDRO- AND GAS DYNAMICS
Interaction of heavy ion beams with plasma electrons: role of many-electron ionization processes
G. I. Andreeva, V. L. Bychkova, V. P. Shevelkoba a Department of Physical Electronics, Faculty of Physics, Moscow State University, Moscow, 119991 Russia
b Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 Russia
Abstract:
Processes of multiple electron-impact ionization of ions in a plasma and a beam passing through the plasma have been considered. Using experimental data and theoretical calculations of the cross sections for $n$-electron ionization $\sigma_n$, the contribution from many-electron ionization rates $\langle v \sigma_n(v)\rangle$ to the total ionization rate has been determined as a function of the electron temperature of the plasma $T$. It has been shown that the total contribution of many-electron ionization rates to the total ionization rate in ion beams passing through the plasma is determined by the relation between the velocity of an ion beam $\langle v \sigma_n(v)\rangle$ and the thermal velocity of electrons in the plasma $v_{\text{th}}$. Many-electron ionization rates $\langle v\sigma_n(v)\rangle$ have been numerically calculated for $W^+$ ions for electron temperatures of the plasma from $1$ eV to $10$ keV and velocities of the ion beam $v_{\mathrm{p}} = 0$–$30$ a.u., where $1$ a.u. $\approx 2.2 \times 10^8$ cm/s is the atomic unit of velocity.
Received: 16.02.2023 Revised: 19.02.2023 Accepted: 19.02.2023
Citation:
G. I. Andreev, V. L. Bychkov, V. P. Shevelko, “Interaction of heavy ion beams with plasma electrons: role of many-electron ionization processes”, Pis'ma v Zh. Èksper. Teoret. Fiz., 117:6 (2023), 428–433; JETP Letters, 117:6 (2023), 435–440
Linking options:
https://www.mathnet.ru/eng/jetpl6896 https://www.mathnet.ru/eng/jetpl/v117/i6/p428
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Abstract page: | 43 | References: | 14 | First page: | 4 |
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