Dissipation of Pulsed Electron Beam in Hydrogen and Oxygen in High Pressure

Abstract:

This paper presents results of study of dissipation processes of pulsed electron beam in the oxygen and hydrogen (300 Torr). These gases are chosen owing of their use as a operating environment at pulse plasmochemical synthesis of nanosized oxides of metals. Experimental studies are conducted on the laboratory TEU-500 electron accelerator (500 keV electron energy; 10 кА ejected electron current; 60 ns half-amplitude pulse duration; 5 pps pulse repetition rate; diameter of a bunch is 5 cm). The electron beam was removed in a drift pipe through the anode window which is the supporting lattice (with optical transparency of 95%) and through aluminum foil 140 microns thick. The pipe of drift is equipped with three shunts of the return current which are fixing a signal at the same time. The received results of researches allow to make a conclusion. It is necessary to increase length to 80 cm and diameter to 30 cm of a pipe of drift for optimum absorption of a pulse electron beam by operating gas, for obtaining high efficiency of electron accelerator of pulse plasmochemical synthesis of nanosized oxides of silicon and the titan.

• Periodical: Key Engineering Materials (Volume 685)
• Pages: 653-656
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.685.653
• Online since: February 2016
• Authors: Alexander Tabaev, Galina Kholodnaya, Roman Sazonov, Denis Ponomarev
• Keywords: Dissipation, Drift Tube, Hydrogen, Oxygen, Pulsed Electron Beam

References

[1] I. S. Egorov, M. I. Kaikanov, E. I. Lukonin, G. E. Remnev, and A. V. Stepanov The Astra Repetitive Pulse Electron Accelerator, J. Instrum. and Exp. Techn. 56 (2013) 568-570.

DOI: 10.1134/s0020441213050035

[2] W.A. Parejo Calvo, C.L. Duarte, L.D. Machado, J.E. Manzoli, A.B. Geraldo, Y. Kodama, L.G. Silva, E.S. Pino, E.S.R. Somessari, C.G. Silveira, P.R. Rela Electron beam accelerators-trends in radiation processing technology for industrial and environmental applications in Latin America and the Caribbean, J. Rad. Phys. and Chem. 81(2012).

DOI: 10.1016/j.radphyschem.2012.02.013

[3] D.V. Ponomarev, G.E. Remnev, R.V. Sazonov, G.E. Kholodnaya Pulse plasma-chemical synthesis of ultradispersed powders of titanium and silicon oxide, J. IEEE Trans. on Plasma Sc. 41 (2013) Pages 2908-2912.

DOI: 10.1109/tps.2013.2273559

[4] G. Kholodnaya, D. Ponomarev, R. Sazonov, G. Remnev Characteristics of pulsed plasma-chemical synthesis of silicon dioxide nanoparticles J. Rad. Phys. and Chem. 103 (2014) 114-118.

DOI: 10.1016/j.radphyschem.2014.05.048

[5] W.H. Bennet Magnetically self-focusing streams J. Phys. Rev. 45 (1934) 890-895.

[6] N. Alfven On the motion of cosmic rays in interstellar space J. Phys. Rev. 55 (1939) 425-430.

[7] J.D. Lason Perveace and Bennett pinch relation in partially neutralized electron beam, J. Electron Control. 33 (1958) 146-153.

[8] J.D. Shipman The electrical design of NRL Gamble – II 100 kilojoules, 50 nanosecond, water dielectric pulse generator used in electron beam experiments, J. IEEE Trans. Nucl. Sci. 18 (1971) 294-308.

DOI: 10.1109/tns.1971.4326348

[9] J. Benford, B. Ecker Intense relativistic electron beam propagation in preionised gas, J. Phys. Fluids, 15 (1972) 366-368.

DOI: 10.1063/1.1693916