Measurement of the energy distribution of electrons escaping minimum-B ECR plasmas

@article{Izotov2017MeasurementOT,
  title={Measurement of the energy distribution of electrons escaping minimum-B ECR plasmas},
  author={I. V. Izotov and Olli Tarvainen and V. A. Skalyga and D. A. Mansfeld and T Kalvas and H. Koivisto and R. Kronholm},
  journal={Plasma Sources Science and Technology},
  year={2017},
  volume={27}
}
The measurement of the electron energy distribution (EED) of electrons escaping axially from a minimum-B electron cyclotron resonance ion source (ECRIS) is reported. The experimental data were recorded with a room-temperature 14 GHz ECRIS at the JYFL accelerator laboratory. The electrons escaping through the extraction mirror of the ion source were detected with a secondary electron amplifier placed downstream from a dipole magnet serving as an electron spectrometer with 500 eV resolution. It… 

Measurement of the energy distribution of electrons escaping confinement from an electron cyclotron resonance ion source.

A measurement of electrons escaping axially from an ECRIS device has been performed at the National Superconducting Cyclotron Laboratory and a comparison between the energy associated with the peak of the electron distribution and the spectral temperature of the bremsstrahlung distribution is shown.

Measurements of the energy distribution of electrons lost from the minimum B-field-The effect of instabilities and two-frequency heating.

The observed changes in EED introduced by the secondary frequency in different regimes, including an off-resonance condition, where thesecondary frequency is lower than the minimum frequency satisfying the resonance condition for cold electrons at the magnetic field minimum, are reported.

Lost electron energy distribution of electron cyclotron resonance ion sources.

To ensure further progress in the development of electron cyclotron resonance ion sources (ECRISs), deeper understanding of the underlying physics is required. The electron energy distribution (EED),

The role of radio frequency scattering in high-energy electron losses from minimum-B ECR ion source

The measurement of the axially lost electron energy distribution escaping from a minimum-B electron cyclotron resonance ion source in the range of 4–800 keV is reported. The experiments have revealed

Effects of magnetic configuration on hot electrons in a minimum-B ECR plasma

To investigate the hot electron population and the appearance of kinetic instabilities in highly charged electron cyclotron resonance ion source (ECRIS), the axially emitted bremsstrahlung spectra

Energy distribution and bremsstrahlung spectra of energetic electrons escaping from the ECR plasma with high energy input

Electron energy distribution function (EEDF) is an important characteristic that defines the processes of plasma confinement and ionization. Understanding such processes is crucial for the proper

Influence of electron cyclotron resonance ion source parameters on high energy electrons.

In order to diagnose the electron cyclotron resonance (ECR) plasma, a high-efficiency collimation system has been developed at the Institute of Modern Physics, and the bremsstrahlung spectra were measured on a third generation superconducting ECR ion source.

Diagnostics of hot electrons leaving the ECR plasma sustained by the high-power gyrotron

Energy distribution of electrons in the electron-cyclotron resonance (ECR) discharge has a complicated shape as a function of various parameters that still remains unknown. Meanwhile, it is an

Correlation of bremsstrahlung and energy distribution of escaping electrons to study the dynamics of magnetically confined plasma

A combination of electron and bremsstrahlung diagnostics was used to study the properties of the highly charged plasma of an electron cyclotron resonance ion source (ECRIS). The bremsstrahlung

Spatial distributions of plasma potential and density in electron cyclotron resonance ion source

The Numerical Advanced Model of Electron Cyclotron Resonance Ion Source (NAM-ECRIS) is applied for studies of the physical processes in the source. Solutions of separately operating electron and ion

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