Ecom - 02041 - Vö ! Investigation of Fast Wave Beam / Plasma Interactions

نویسندگان

  • P. L. Anderson
  • J. C. Lee
  • V. Ristic
  • T. D. Rognlien
چکیده

This report describes a program of work in which both electrostatic and electromagnetic wave amplifying mechanisms are under investigation. For the former, studies in the absence of a static magnetic field are direcced towards verifying the theory for beam/surface wave amplification. Two distinctly different lines are being followed for interaction in the presence of a static magnetic iield: Electrostatic cyclotron harmonic wave interaction is being examined, both theoretically and experimentally, and the potentialities of electromagnet:c wave growth in the "whistler" mode are being investigated.

برای دانلود رایگان 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

ECOM: A fast and accurate solver for toroidal axisymmetric MHD equilibria

We present ECOM (Equilibrium solver via COnformal Mapping), a fast and accurate fixed boundary solver for toroidally axisymmetric magnetohydrodynamic equilibria with or without a toroidal flow. ECOM combines conformal mapping and Fourier and integral equation methods on the unit disk to achieve exponential convergence for the poloidal flux function aswell as its first and second partial derivat...

متن کامل

Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field

In this paper, the collisional filamentation instability of an electron beam-weakly magnetized and ionized plasma has been investigated in the presence of background plasma, using the fluid description. By describing the equilibrium configuration in the presence of binary collision terms between charged and neutral particles and using the local approximation method, the dispersion relation (DR)...

متن کامل

Three-wave interactions between fast-ion modes in the National Spherical Torus Experiment.

Simultaneous bursts of energetic particle mode (EPM) and toroidicity-induced Alfvén eigenmode (TAE) activity that correlate with significant fast-ion loss are observed in beam heated plasmas. Three-wave interactions between these modes are conclusively identified, indicating fixed phase relationships. This nonlinear coupling concentrates the energy of the TAEs into a toroidally localized pertur...

متن کامل

Observation of fast-ion Doppler-shifted cyclotron resonance with shear Alfvén waves

The Doppler-shifted cyclotron resonance −kzvz= f between fast ions and shear Alfvén waves is experimentally investigated , wave frequency; kz, axial wavenumber; vz, fast-ion axial speed; f, fast-ion cyclotron frequency . A test particle beam of fast ions is launched by a Li+ source in the helium plasma of the LArge Plasma Device LAPD W. Gekelman, H. Pfister, Z. Lucky, J. Bamber, D. Leneman, and...

متن کامل

Langmuir Wave Generation Through A Neutrino Beam Instability

A standard version of a kinetic instability for the generation of Langmuir waves by a beam of electrons is adapted to describe the analogous instability due to a beam of neutrinos. The interaction between a Langmuir wave and a neutrino is treated in the one-loop approximation to lowest order in an expansion in 1/M W in the standard electroweak model. It is shown that this kinetic instability is...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014