Response of narrow cylindrical plasmas to dense charged particle beams
Response of narrow cylindrical plasmas to dense charged particle beams
复制标题
窄圆柱形等离子体对密集带电粒子束的响应
DOI：
10.1063/1.5039803
复制
发表时间：
2018
影响因子：
2.2
通讯作者：
K. Lotov
中科院分区：
文献类型：
--
作者：
A. Gorn;P. Tuev;A. Petrenko;A. Sosedkin;K. Lotov
本文采用线性理论和数值模拟相结合的方法，研究了在较宽的等离子体密度范围内，径向轴对称等离子体对相对论带电粒子束的响应。我们提出了在稠密等离子体中产生的磁场的解析表达式，证明了韦克菲尔德电位的消失超出了最外层等离子体电子的轨迹，并遵循韦克菲尔德电位的变化，随着等离子体密度的降低。在高等离子体密度下，电子密度和径向电场的波前由于束流电荷和电流中和而发生畸变，而韦克菲尔德和纵向电场的波前则不发生畸变。在等离子体密度低于或束密度的数量级，多个电子流的发展等离子体内外，导致在非零的韦克菲尔德等离子体柱周围的潜力。
By combining the linear theory and numerical simulations, we study the response of a radially bounded axisymmetric plasma to relativistic charged particle beams in a wide range of plasma densities. We present analytical expressions for the magnetic field generated in the dense plasma, prove vanishing of the wakefield potential beyond the trajectory of the outermost plasma electron, and follow the wakefield potential change as the plasma density decreases. At high plasma densities, wavefronts of electron density and radial electric field are distorted because of beam charge and current neutralization, while wavefronts of wakefield potential and longitudinal electric field are not. At plasma densities lower than or of the order of beam density, multiple electron flows develop in and outside the plasma, resulting in nonzero wakefield potential around the plasma column.
影响因子：
2.2
作者：
R. Assmann;R. Bingham;R. Bingham;T. Bohl;C. Bracco;B. Buttenschön;A. Butterworth;A. Caldwell;S. Chattopadhyay;S. Cipiccia;S. Cipiccia;E. Feldbaumer;R. Fonseca;R. Fonseca;B. Goddard;M. Gross;O. Grulke;E. Gschwendtner;J. Holloway;J. Holloway;Chengkun Huang;D. Jaroszynski;S. Jolly;P. Kempkes;N. Lopes;N. Lopes;K. Lotov;K. Lotov;J. Machacek;S. Mandry;S. Mandry;J. Mckenzie;M. Meddahi;B. Militsyn;N. Moschuering;P. Muggli;Z. Najmudin;T. Noakes;P. Norreys;P. Norreys;E. Öz;A. Pardons;A. Petrenko;A. Petrenko;A. Pukhov;K. Rieger;O. Reimann;H. Ruhl;E. Shaposhnikova;Luís O. Silva;A. Sosedkin;A. Sosedkin;R. Tarkeshian;R. Trines;T. Tückmantel;J. Vieira;J. Vieira;H. Vincke;M. Wing;G. Xia
通讯作者：
R. Assmann;R. Bingham;R. Bingham;T. Bohl;C. Bracco;B. Buttenschön;A. Butterworth;A. Caldwell;S. Chattopadhyay;S. Cipiccia;S. Cipiccia;E. Feldbaumer;R. Fonseca;R. Fonseca;B. Goddard;M. Gross;O. Grulke;E. Gschwendtner;J. Holloway;J. Holloway;Chengkun Huang;D. Jaroszynski;S. Jolly;P. Kempkes;N. Lopes;N. Lopes;K. Lotov;K. Lotov;J. Machacek;S. Mandry;S. Mandry;J. Mckenzie;M. Meddahi;B. Militsyn;N. Moschuering;P. Muggli;Z. Najmudin;T. Noakes;P. Norreys;P. Norreys;E. Öz;A. Pardons;A. Petrenko;A. Petrenko;A. Pukhov;K. Rieger;O. Reimann;H. Ruhl;E. Shaposhnikova;Luís O. Silva;A. Sosedkin;A. Sosedkin;R. Tarkeshian;R. Trines;T. Tückmantel;J. Vieira;J. Vieira;H. Vincke;M. Wing;G. Xia