Search results for "ECRIS plasma"

showing 2 items of 2 documents

Spectroscopic method to study low charge state ion and cold electron population in ECRIS plasma

2018

The results of optical emission spectroscopy experiments probing the cold electron population of a 14 GHz Electron Cyclotron Resonance Ion Source (ECRIS) are reported. The study has been conducted with a high resolution spectrometer and data acquisition setup developed specifically for the diagnostics of weak emission line characteristic to ECRIS plasmas. The optical emission lines of low charge state ions and neutral atoms of neon have been measured and analyzed with the line-ratio method. The aforementioned electron population temperature of the cold electron population (Te < 100 eV) is determined for Maxwell-Boltzmann and Druyvesteyn energy distributions to demonstrate the applicability …

Materials sciencespektroskopiachemistry.chemical_elementplasmafysiikka01 natural sciencesElectron cyclotron resonanceIonlow charge state ionNeonIonization0103 physical sciencesspectroscopic methodEmission spectrumcold electron populationInstrumentation010302 applied physicsta114010308 nuclear & particles physicssyklotronitPlasmaECRIS plasmaIon sourcechemistryPlasma diagnosticsAtomic physicsReview of Scientific Instruments
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Periodic Beam Current Oscillations Driven by Electron Cyclotron Instabilities in ECRIS Plasmas

2014

Experimental observation of cyclotron instabilities in electron cyclotron resonance ion source plasma operated in cwmode is reported. The instabilities are associated with strong microwave emission and a burst of energetic electrons escaping the plasma, and explain the periodic oscillations of the extracted beam currents. The instabilities are shown to restrict the parameter space available for the optimization of high charge state ion currents. nonPeerReviewed

cyclotron instabilitiesPhysics::Plasma PhysicsAstrophysics::High Energy Astrophysical PhenomenaPhysics::Space PhysicsECRIS plasma
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