Progress on the Multimirror Trap GOL-3

Subterahertz Emission at Strong REB-Plasma Interaction in Multimirror Trap GOL-3

“…3). It occurs due to heating-induced modulation of the plasma density as established via Thomson scattering 7 . Fig.3.…”

Studies of high-current relativistic electron beam interaction with gas and plasma in Novosibirsk

“…38,39 These oscillations were directly observed in the measurements of the neutron emission from the cells, which is proportional to the square of the ion density. 34 Periodic oscillations can be easily identified in the neutron emission signals shown in Fig. 16.…”

“…15) and by registration of a neutron flux from the plasma heated by the beam. 34 The time behavior of the neutron flux was shown in two scales in Fig. 16.…”

Multiple-mirror trap: Milestones and future

“…5. Such oscillations were localized within separate corrugation cells and had typical frequency 2 Ti v l and were caused by a small fraction of ions that oscillate in the cell [25]. Later, those oscillations were identified in theory [30] as electrostatic bounce instability of marginally-trapped ions.…”

“…In the multiple-mirror configuration, the beam heated electrons as usual, but after a few microseconds electron temperature decreased rapidly from 2 -3 keV down to 200 -300 eV at (0.8 -1)×10 21 m -3 density [24]. Simultaneously with this, ions acquired high temperature up to 2 -4 keV [24,25] that evidenced for a new collective mechanism that exists in the corrugated magnetic field only. Such mechanism was first suggested in [26]; later it was carefully studied in [27].…”