Details

Autor(en) / Beteiligte

• Mesyats, G A
• Sharypov, K A
• Shpak, V G
• Shunailov, S A
• Yalandin, M I
• Zubarev, N M

Titel

Runaway electron flows in magnetized coaxial gas diodes

Ist Teil von

• Journal of physics. Conference series, 2021-11, Vol.2064 (1), p.12006

Ort / Verlag

IOP Publishing

Erscheinungsjahr

2021

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Abstract This paper presents the experimental results on applying a strong magnetic field ( B ) to increase the uniformity and density of a picosecond runaway electron flow (RAEF) formed in an air coaxial diode with a tubular cathode. A uniform longitudinal field B z allows to confine RAEF similarly to the electron beam in a magnetically insulated coaxial vacuum diode. Dependence of the spatial discreteness of RAEF emission and the transverse size of the emitting plasma regions on B z has been demonstrated. For the cathode diameter of 8 mm, a current density was significantly increased from 40 A/cm 2 (at B z = const) to 100 A/cm 2 by applying B-field with converging field lines. In the region of B maximum (5 T) the RAEF diameter was squeezed by ≈ 4 times.