title: Multicharged ion source based on Penning-type discharge with electron cyclotron resonance heating by millimeter waves.
abstract: We suggest a Penning-type discharge as a trigger discharge for fast development of pulsed electron cyclotron resonance plasma. The Penning-type discharge glows at a low pressure as needed. Gyrotron radiation (75 GHz, 200 kW, 1 ms) was used for plasma heating. Fully striped helium ions were demonstrated, average charge of ions in the plasma was ≈ 2. Experiment and calculations show that high charge states of heavier gases require lower initial pressure and longer development time. Only moderate charge states are achievable in this pulsed scheme.
authors.affiliation: Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia. avod@appl.sci-nnov.ru
authors.forename: A V
authors.initials: AV
authors.lastname: Vodopyanov
authors.forename: I V
authors.initials: IV
authors.lastname: Izotov
authors.forename: D A
authors.initials: DA
authors.lastname: Mansfeld
authors.forename: G Yu
authors.initials: GY
authors.lastname: Yushkov