Pulsed electron beam propagation in gases under pressure of 6.6kPa in drift tube

• Published in: Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2017-02, Vol.392, p.31-35
• Main Authors: Kholodnaya, G.E., Sazonov, R.V., Ponomarev, D.V., Remnev, G.E., Poloskov, A.V.
• Format: Article
• Language: English
• Subjects: Beams (radiation); Carbon dioxide; Chambers; Drift tubes; Electron accelerators; Electron beams; Energy use; Pulsed electron beam; Transport; Walls
• ISSN: 0168-583X; 1872-9584
• DOI: 10.1016/j.nimb.2016.12.010

This paper presents the results of an investigation of pulsed electron beam transport propagated in a drift tube filled with different gases (He, H2, N2, Ar, SF6, and CO2). The total pressure in the drift tube was 6.6kPa. The experiments were carried out using a TEA-500 pulsed electron accelerator. The electron beam was propagated in the drift tube composed of two sections equipped with reverse current shunts. Under a pressure of 6.6kPa, the maximum value of the electron beam charge closed on the walls of the drift tube was recorded when the beam was propagated in hydrogen and carbon dioxide. The minimum value of the electron beam charge closed on the walls of the drift tube was recorded for sulfur hexafluoride. The visualization of the pulsed electron beam energy losses onto the walls of the drift chamber was carried out using radiation-sensitive film.