Magnetoplasmas in ECR-Ion Sources are excited from gaseous elements or vapours by microwaves in the range 2.45-28 GHz via Electron Cyclotron Resonance. A B-minimum, magnetohydrodynamic stable configuration is used for trapping the plasma. The values of plasma density, temperature and confinement times are typically ne= 1011-1013cm-3, 01 eV<Te<10 keV, 0.001<tc<1 s. At INFN-LNS several diagnostics tools have been developed for probing the electromagnetic emission of such plasmas, in the optical/X-ray domain. Fast Silicon Drift detectors with high energy resolution of 125 eV at 5.9 keV have been used for the characterization of plasma emission at 02<E<3 keV . In the domain 0.4-17 keV an X-ray pin-hole camera technique has allowed space resolved X-ray spectroscopy with a spatial resolution down to 30 μm and an energy resolution down to 140 eV at 5.9 keV . In parallel, imaging in the optical range and spectroscopic measurements have been carried out. Relative abundances of H/H2atoms/molecules in the plasmas have been measured for different values of neutral pressure, microwave power and magnetic field profile (they are critical for high-power proton sources).

Electromagnetic diagnostics of ECR-Ion Sources plasmas: Optical/X-ray imaging and spectroscopy

Mascali, D.;CASTRO, GIUSEPPE;ALTANA, CARMEN LOREDANA;CALIRI, CLAUDIA;Mazzaglia, M.;Romano, F. P.;Leone, F.;Musumarra, A.;Reitano, R.;TORRISI, GIACOMO;COSENTINO, LUIGI GIOVANNI;Giarrusso, M.;
2017-01-01

Abstract

Magnetoplasmas in ECR-Ion Sources are excited from gaseous elements or vapours by microwaves in the range 2.45-28 GHz via Electron Cyclotron Resonance. A B-minimum, magnetohydrodynamic stable configuration is used for trapping the plasma. The values of plasma density, temperature and confinement times are typically ne= 1011-1013cm-3, 01 eV
Ion sources (positive ions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS)); Plasma diagnostics-interferometry, spectroscopy and imaging; Instrumentation; Mathematical Physics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/316714
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