Thermal ion heating in the vicinity of the plasmapause
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Thermal ion heating in the vicinity of the plasmapause final report, research grant NAG-5-475, October 1984 - March 1986 by

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English


  • Astrophysics.,
  • Hydrogen.,
  • Interstellar matter.,
  • Molecular clouds.,
  • Recombination reactions.,
  • Stellar luminosity.

Book details:

Edition Notes

Statementby Richard H. Comfort, principal investigator.
SeriesNASA contractor report -- NASA CR-176993.
ContributionsUnited States. National Aeronautics and Space Administration.
The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL17684359M

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The temperatures inside the ITER Tokamak must reach million degrees Celsius—or ten times the temperature at the core of the Sun—in order for the gas in the vacuum chamber to reach the plasma state and for the fusion reaction to occur. The hot plasma must then be sustained at these extreme temperatures in a controlled way in order to extract energy. time of the thermal boundary layer around a particle is also very short in coniarison with =?article heating time [ref. ?article can be treated as quasi-steady for all the particle heating history.: lence, the heat transfer process from plasma 20 a Ion-electron recombination at the particle surface contributes about 10% or more to the. The dynamics of earth's plamasphere is affected by gradients in the plasma pressure, the convection electric field, and the corotation electric field. The Retarding Ion Mass Spectrometer (RIMS) on Dynamics Explorer 1 measures the pitch angles of this plasma from which the total plasma velocity. Two families of external heating methods—neutral beam injection and high-frequency electromagnetic waves—will complement ohmic heating to bring the ITER plasma to temperature. Neutral beam injection consists in shooting high energy particles into the plasma. Outside of the tokamak, charged deuterium particles are accelerated to the required energy level.

The occurrences of density enhancements of thermal heavy ions O(+), O(2+), and N(+) observed on numerous occasions by mass spectrometer aboard the Dynamics Explorer 1 . Neutral particle heating Particles with high kinetic energy that are injected into the plasma transfer their energy to the plasma particles through collisions and heat them: In a neutral particle injector first the ions are produced in an ion source and then accelerated by an electric field.   The secret of electron heating in low temperature plasmas has been discovered by the Bochum researchers at the Center of Excellence “Plasma Science and Technology” (CPST) at the Ruhr University. In addition to the usual mechanism which utilizes the Ohmic transformer current, which is necessarily pulsed, there exist several steady-state mechanisms. Heating mechanisms which can lend themselves efficiently to continuous current generation include neutral beams, Alfven waves, ion-cyclotron waves, lower-hybrid waves and electron-cyclotron Cited by: 1.

Heating rate of thermal electrons. To calculate the heating rate Q T ph of thermal electrons by photoelectrons Q e, the kinetic equation of photoelectron transport in conjugate ionospheres was solved by taking into account the energy losses due to the trapping of these photoelectrons at their passage through the plasmasphere. Various thermal processes, like combustion, pyrolysis or gasification have been developed for treating these wastes in the aim to recover energy from the organic fraction []. Various thermal processes, like combustion [], pyrolysis [] or gasification [], have beenCited by: Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy between physical transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase ers also consider the transfer of mass of differing chemical . What does non-thermal heating means? I am confused with the heat generating mechanism in non-thermal plasma. As far as I know, most of the energy received from .