title: The first measurement of plasma density in an ECRIS-like device by means of a frequency-sweep microwave interferometer.
abstract: The note presents the first plasma density measurements collected by a novel microwave interferometer in a compact Electron Cyclotron Resonance Ion Sources (ECRIS). The developed K-band (18.5 ÷ 26.5 GHz) microwave interferometry, based on the Frequency-Modulated Continuous-Wave method, has been able to discriminate the plasma signal from the spurious components due to the reflections at the plasma chamber walls, when working in the extreme unfavorable condition λp≃ Lp≃ Lc(λp, Lp, and Lcbeing the probing signal wavelength, the plasma dimension and the plasma chamber length, respectively). The note describes the experimental procedure when probing a high density plasma (ne> 1 ⋅ 1018cm-3) produced by an ECRIS prototype operating at 3.75 GHz.
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: D
authors: D
authors: Mascali
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: G
authors: G
authors: Torrisi
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: O
authors: O
authors: Leonardi
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: G
authors: G
authors: Sorbello
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: G
authors: G
authors: Castro
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: L G
authors: LG
authors: Celona
authors: ESS Bilbao, 48170 Zamudio, Spain.
authors: R
authors: R
authors: Miracoli
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: R
authors: R
authors: Agnello
authors: INFN - Laboratori Nazionali del Sud, 95123 Catania, Italy.
authors: S
authors: S
authors: Gammino