CYCLOTRON MASER INSTABILITY FOR INTENSE SOLID ELECTRON-BEAMS

被引:13
作者
UHM, HS [1 ]
DAVIDSON, RC [1 ]
机构
[1] US DOE,OFF FUS ENERGY,WASHINGTON,DC 20545
关键词
D O I
10.1063/1.326032
中图分类号
O59 [应用物理学];
学科分类号
摘要
The cyclotron maser instability for a solid relativistic electron beam propagating parallel to a uniform axial magnetic field B0ê z is investigated. The stability analysis is carried out within the framework of the linearized Vlasov-Maxwell equations. It is assumed that ν/γ̂≪1, where ν is Budker's parameter and γ̂mc2 is the electron energy. Stability properties are investigated for the choice of equilibrium distribution function in which all electrons have the same value of total perpendicular energy, the same value of axial velocity, and a step-function distribution in canonical angular momentum. The instability growth rate is calculated including a determination of the optimum value of the beam radius R0 for maximum growth. It is found that the maximum growth rate for a solid beam is comparable to the maximum growth rate for a hollow beam.
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收藏
页码:696 / 701
页数:6
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