Numerical models of helical electron beams for cyclotron reso- nance-based masers

نویسنده

  • Aleksey Kuntsevich
چکیده

В гиротронах, наиболее мощных источниках электромагнитного излучения в широком диапазоне длин волн от миллиметрового до субмиллиметрового, в качестве активной среды (источника энергии излучения) используются трубчатые пучки электронов, движущихся по винтовым траекториям в магнитном поле (так называемые винтовые электронные пучки ВЭП). Моделирование и оптимизацию параметров ВЭП целесообразно проводить на основе иерархии последовательно усложняющихся численных моделей, позволяющих проводить за приемлемое время анализ сначала в рамках статической модели для минимизации разброса скоростей частиц, а затем и динамической модели для оценки устойчивости ВЭП.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Linear 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 کامل

Collective and Single-Electron Interactions of Electron Beams with Electromagnetic Waves, and Free-Electron Lasers*

The field of radiation emission from electron beams is reviewed with special reference to work related to free-electron lasers. Different schemes o f interaction in periodic structures, electromagnetic slow-wave structures, and in transverse confining force are distinguished. Various effects and devices such as traveling wave amplifiers, Smith-Purcell radiators, Cerenkov and bremsstrahlung-free...

متن کامل

Two-dimensional cyclotron-resonance maser array: Spectral measurements with one and two electron beams

The cyclotron-resonance-maser ~CRM! array is a device in which separate electron beams perform simultaneously a cyclotron interaction with a single Bloch wave in an artificial lattice. The CRM array has the capability of generating high-power microwaves with relatively low-voltage electron beams. The low-voltage operation reduces the system overhead and leads to a relatively compact device. In ...

متن کامل

Title : STOCHASTIC ELECTRON TRAJECTORIES AND WAVE INTERACTION IN RELATIVISTIC GYRO - TRAVELING - WAVE AMPLIFIERS

Title: STOCHASTIC ELECTRON TRAJECTORIES AND WAVE INTERACTION IN RELATIVISTIC GYRO-TRAVELING-WAVE AMPLIFIERS. Roland Ngogang, Master of Science, 2005 Directed By: Professor Victor L. Granatstein, Department of Electrical Engineering Gyro-traveling-wave amplifiers (gyro-TWAs) are types of gyrodevices, which take advantage of the cyclotron maser instability to produce coherent electromagnetic (EM)...

متن کامل

PFC / JA - 93 - 15 Linear and Nonlinear Analysis of the Cyclotron Two - Stream Instability

A two-dimensional, self-consistent, nonlinear model is used to determine the growth rate and saturation level of the cyclotron two-stream instability for two weakly relativistic electron beams co-propagating along a uniform magnetic field with an inverted population in the perpendicular momentum. This instability has been proposed recently as the basis for a double-stream cyclotron maser. Good ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015