Speakers
Mr
Grigory Shulzhenko
(Budker Institute of Nuclear Physics)
Dr
Timur Akhmetov
(Budker Institute of Nuclear Physics)
Description
A plane circular LaB$_6$ cathode and a hollow anode are used for the arc discharge plasma production in a newly developed linear plasma device with the axially symmetric magnetic field. The cathode is heated by radiation from a graphite foil flat spiral. A separately powered magnetic coil located around the plasma source is used to vary the radial distance between the outermost magnetic field line from the cathode and the inner anode surface. The discharge geometry defines distinct operational modes: partially direct discharge and magnetic insulation. The magnetic field in the source can be varied from 0 to 2.2 kG while preserving the chosen field geometry, with the discharge voltage and current depending on the particular mode. A hydrogen plasma stream with an almost uniform density of up to 2$\cdot$10$^{13}$ cm$^{-3}$ for a diameter of about 5 cm is produced. The measured dependence of the discharge characteristics on the magnetic field is discussed.
Primary author
Dr
Timur Akhmetov
(Budker Institute of Nuclear Physics)
Co-authors
Dr
Alexander Ivanov
(Budker Institute of Nuclear Physics)
Dr
Arkadi Kreter
(Forschungszentrum Juelich)
Prof.
Bernhard Unterberg
(Forschungszentrum Juelich)
Mr
Grigory Shulzhenko
(Budker Institute of Nuclear Physics)
Dr
Vladimir Davydenko
(Budker Institute of Nuclear Physics)
