Small-signal analysis of the induced-resonance electron-cyclotron maser.
نویسندگان
چکیده
منابع مشابه
Pfc/ja-85-4 Free Electron Laser or Cyclotron Maser Instability?
An analysis of recent free electron laser experiments in combined wiggler and strong axial magnetic fields shows that near resonance, Q,,=kwv,,, the proximity of the cyclotron maser instability precludes an unambiguous identification of the radiation mechanism ( 2,, is the cyclotron frequency in the axial field, kw is the wiggler wavenumber, and v,, the axial electron velocity).
متن کاملLinear analysis of a multibeam cyclotron-resonance maser array
The multibeam cyclotron-resonance maser ~CRM! array is a new concept for compact, high-power CRM devices operating at low voltages. The CRM array studied in this paper employs low-energy electron beams, which are propagating in coupled channels in a two-dimensional periodic waveguide. A static magnetic field spirals the electrons in synchronism with a spatial harmonic of the electromagnetic wav...
متن کاملTheory of the anomalous Doppler cyclotron-resonance-maser amplifier with tapered parameters
The theory of a slow-wave cyclotron-resonance-maser ~CRM! amplifier employing an initially linear electron beam is developed. In such a device, the electrons radiate electromagnetic waves under the anomalous Doppler effect. In order to maintain the cyclotron resonance between the radiating electrons and the amplifying electromagnetic wave, we consider a system with tapered waveguide parameters....
متن کاملCompeting instabilities in the circular free-electron laser
A small signal theory of the circular free-electron laser (FEL) is developed. A matrix dispersion relation, which includes coupling between the transverse magnetic (TM) and transverse electric (TE) waveguide modes, is derived from a Eulerian fluid model. The full dispersion equation is then expanded around the TM and TE mode resonant frequencies of the circular coaxial waveguide. The growth rat...
متن کاملThe electron cyclotron maser in hot thermal plasmas
We investigate the possibility of an electron cyclotron maser operating in a hot (T > 107K) thermal plasma with a loss cone. We find that the instability can occur in this scenario because resonance involving electrons in the thermal tail can give rise to significantly large growth rates. We estimate the range of electron velocities that can be in resonance and show how this dictates the freque...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review. A, General physics
دوره 36 1 شماره
صفحات -
تاریخ انتشار 1987