Relativistic electron beam generation in a plasma-filled diode with foilless injection into a dense plasma

Journal Article · Fri Dec 01 04:00:00 EST 1995 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.476482· OSTI ID:203663

Burmasov, V S; Kandaurov, I V; Kruglyakov, E P; Meshkov, O I ^[1]

---

1. Budker Inst. of Nuclear Physics, Novosibirsk (Russian Federation)

In the experiments on relativistic electron beam (REB)-plasma interaction, the foilless injection of REB from a magnetized diode is of special interest due to the low spread angle of the beam and high repetition rate of the shots. In the experiments presented, the problem of diode shortening in the presence of a dense plasma from the interaction chamber has been solved using a special drift pipe as an anode of the foilless diode. The electron beam (U{sub d} {approximately} 0.7 MeV, t{sub b} {approximately} 100--200 ns) produced by an axially symmetric magnetically insulated diode has been injected into a magnetized hydrogen plasma column with density ranging from 1 {center_dot} 10{sup 15}--3 {center_dot} 10{sup 16} cm{sup {minus}3}. It has been found that the anode pipe substantially reduces the plasma flow into the diode gap, but does not stop it completely, thus the REB generation in a plasma-filled diode has taken place. In some regimes of the beam generation it becomes possible to increase significantly the injected current and total energy deposition of the beam in comparison with the case of a vacuum magnetized diode of the same geometry. The experiments have shown effective dense plasma heating under the foilless injection.

• OSTI ID: 203663
• Report Number(s): CONF-950534--
• Journal Information: IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 6 Vol. 23; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BEAM INJECTION
BEAM PRODUCTION
ELECTRON BEAMS
EXPERIMENTAL DATA
PLASMA DENSITY
PLASMA DRIFT
RELATIVISTIC RANGE
THERMIONIC DIODES