Research output: Contribution to journal › Article › peer-review
Dispersion effect on phase focusing of monochromatic waves in a low voltage beam discharge in rare gases. Kinetic theory. / Sukhomlinov, Vladimir S.; Matveev, Rustem J.; Mustafaev, Alexander S.; Timofeev, Nikolay A.
In: Chinese Journal of Physics, Vol. 77, 06.2022, p. 1291-1304.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Dispersion effect on phase focusing of monochromatic waves in a low voltage beam discharge in rare gases. Kinetic theory
AU - Sukhomlinov, Vladimir S.
AU - Matveev, Rustem J.
AU - Mustafaev, Alexander S.
AU - Timofeev, Nikolay A.
N1 - Publisher Copyright: © 2022 The Physical Society of the Republic of China (Taiwan)
PY - 2022/6
Y1 - 2022/6
N2 - The work is devoted to the development of the kinetic theory of phase focusing in a low-voltage beam discharge in rare gases at the Knudsen numbers for electron transport of order of 1, taking into account dispersion during the propagation of perturbations. It is shown that the dispersion leads to a significant increase in the phase focusing length. Taking into account the dependence of the electron beam intensity on the distance to the cathode, the simultaneous formation of several regions of negative charge (points of phase foci) corresponding to waves with the same frequency and different propagation increments and velocities is found. The phenomenon of locking electrons in a potential well between two simultaneously formed phase foci is discovered. The results of our calculations of the minimum phase focusing length describe well the known experimental data on the length of anomalous beam relaxation in a low-voltage beam discharge for He at the Knudsen numbers for electron transfer of the order of 1.
AB - The work is devoted to the development of the kinetic theory of phase focusing in a low-voltage beam discharge in rare gases at the Knudsen numbers for electron transport of order of 1, taking into account dispersion during the propagation of perturbations. It is shown that the dispersion leads to a significant increase in the phase focusing length. Taking into account the dependence of the electron beam intensity on the distance to the cathode, the simultaneous formation of several regions of negative charge (points of phase foci) corresponding to waves with the same frequency and different propagation increments and velocities is found. The phenomenon of locking electrons in a potential well between two simultaneously formed phase foci is discovered. The results of our calculations of the minimum phase focusing length describe well the known experimental data on the length of anomalous beam relaxation in a low-voltage beam discharge for He at the Knudsen numbers for electron transfer of the order of 1.
KW - Electron beam - plasma system
KW - Kinetic approach
KW - Phase focusing
KW - System instability
UR - http://www.scopus.com/inward/record.url?scp=85128165151&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/79154d7d-497d-3581-9da3-5b4cc50e6c5d/
U2 - 10.1016/j.cjph.2022.03.038
DO - 10.1016/j.cjph.2022.03.038
M3 - Article
AN - SCOPUS:85128165151
VL - 77
SP - 1291
EP - 1304
JO - Chinese Journal of Physics
JF - Chinese Journal of Physics
SN - 0577-9073
ER -
ID: 100213453