Ion velocity distribution function in intrinsic gas at cryogenic gas temperatures

被引：0
|
作者：
Mustafaev, A. S. [1 ]
Nekuchaev, V. O. [2 ]
Sukhomlinov, V. S. [3 ,4 ]
机构：
[1] Natl Mineral Resources Min Univ, St Petersburg 199106, Russia
[2] Ukhta State Tech Univ, Ukhta 169300, Russia
[3] St Petersburg State Univ, St Petersburg 198504, Russia
[4] St Petersburg State Univ Informat Technol Mech &, St Petersburg 197101, Russia
来源：
TECHNICAL PHYSICS | 2017年 / 62卷 / 03期
关键词：
DIFFERENTIAL CROSS-SECTIONS; HE+-IONS; CHARGE-EXCHANGE; ELASTIC-SCATTERING; BEAM MEASUREMENTS; PARENT GASES; HELIUM; MOBILITY; DEPENDENCE; ARGON;
D O I：
10.1134/S106378421703015X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of elastic scattering on the ion distribution function in the plasma of an intrinsic gas in weak fields has been considered. An analytical expression valid for cryogenic temperatures of atoms has been obtained. The reduced He+-He, Ar+-Ar mobilities as functions of the temperature of atoms in a range of 4-1000 K have been calculated in the approximation of the zero field taking into account elastic collisions; the calculated dependences well agree with the available experimental data. It has been demonstrated that elastic collisions play an important role in the formation of the ion distribution function at low temperatures. The results of measurement of the ion mobility in the limit of the zero field at low temperatures can be used to obtain data on the ratio of elastic scattering and resonance charge exchange cross sections.
引用
收藏
页码：365 / 373
页数：9
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