Radiation Processes in Plasmas
Radiation Processes in Plasmas
复制标题
等离子体中的辐射过程
DOI：
10.1063/1.1761223
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发表时间：
1965
影响因子：
4.6
通讯作者：
C. Oberman
中科院分区：
文献类型：
--
作者：
T. Birmingham;J. Dawson;C. Oberman
考虑了嵌入无限空间均匀弗拉索夫等离子体中的任意测试电流源的问题。通过计算测试源对等离子体做功的速率，可以获得横波和纵波的能量发射。通过适当选择电流源可以解决各种辐射问题。使用由于屏蔽电子和离子之间的相遇而产生的随时间变化的偶极矩得出轫致辐射谱的表达式。如果电流是由波与密度波动相互作用产生的，则获得波的散射和耦合。通过将纵波或横波的发射率等同于它们的吸收率，可以获得此类波的稳态能量密度的表达式。
The problem of arbitrary test current sources embedded in an infinite spatially homogeneous Vlasov plasma is considered. By computing the rate at which the test sources do work on the plasma, the energy emission into transverse and longitudinal waves is obtained. A variety of radiation problems can be handled by appropriate choice of the current sources. Use of the time varying dipole moment due to encounters between shielded electrons and ions leads to expressions for the bremsstrahlung spectra. If the currents are produced by the interaction of waves with density fluctuations, the scattering and coupling of waves is obtained. By equating the rate of emission of longitudinal or transverse waves to their rate of absorption, expressions for the steady‐state energy densities of such waves are obtained.