Abstract
Using the example of an electron source with a plasma cathode based on a low-pressure arc discharge with grid stabilization of the cathode/emission plasma boundary and an open anode/beam plasma boundary, a mechanism is described for increasing the electrical strength of a high-voltage accelerating gap by introducing a series negative current feedback (NCF) in the accelerating interval, which makes it possible to level out uncontrolled bursts of the beam current during its pulse. The introduction of NCF is achieved by using a special electrode in the space of the plasma emitter connected through a resistance to the anode of the arc discharge, and the main task of which is to intercept accelerated ions penetrating into the emitter from the high-voltage accelerating gap, due to which the current of electron emission from the arc discharge plasma decreases by a value proportional to the ion current in the accelerating gap. Since most sources and accelerators of electrons with plasma cathodes based on discharges of various types have a similar principle of operation, the use of this method will not only expand the limiting parameters of the generated electron beams, but also increase the stability of the operation of such electron sources, and, accordingly, beam irradiation of various materials and products.
This is a preview of subscription content, log in via an institution to check access.
REFERENCES
V. E. Gromov, Yu. F. Ivanov, S. V. Vorobiev, S. V. Konovalov. Fatigue of Steels Modified by High Intensity Electron Beams (Cambridge, 2015).
V. A. Burdovitsin, A. S. Klimov, A. V. Medovnik, E. M. Oks, Yu. G. Yushkov. Forvacuumnye plazmennye istochniki electronov (Izd-vo Tomskogo un-ta, Tomsk, 2014). (in Russian).
N. N. Koval, V. N. Devyatkov & M. S. Vorobyev. Russ. Phys. J., 63 1651, (2021). https://doi.org/10.1007/s11182-021-02219-3
A. B. Belov [et al]. Silnotochnye impulsnye electronnye puchki dlya aviatsionnogo dvigatelestroeniya, ed. by A.S. Novikov, V.A. Shulov, V.I. Engelko (Dipak, M., 2012). (in Russian).
E. Oks. Plasma Cathode Electron Sources: Physics, Technology, Applications (Weinheim: Wiley – VCH, 2006).
N. V. Gavrilov, V. V. Osipov, O. A. Bureev [et al.]. Tech. Phys. Lett., 31 (2), 122 (2005). https://doi.org/10.1134/1.1877622
M. S. Vorobyov, S. A. Gamermaister, V. N. Devyatkov, N. N. Koval, S. A. Sulakshin, P. M. Shchanin. Tech. Phis. Lett., 40 (12), 506 (2014). https://doi.org/10.1134/S1063785014060261
N. N. Koval, S. V. Grigoryev, V. N. Devyatkov, A. D. Teresov, P. M. Schanin. IEEE Trans. Plasma Sci., 37 (10), 1890 (2009). https://doi.org/10.1109/tps.2009.2023412
A. V. Zharinov, Yu. A. Kovalenko, I. S. Roganov, P. M. Teryukanov. ZhTF, 56 (1), 66 (1986) (in Russian).
A. V. Zharinov, Yu. A. Kovalenko, I. S. Roganov, P. M. Teryukanov. ZhTF, 56 (4), 687 (1986) (in Russian).
M. S. Vorobyov, P. V. Moskvin, V. I. Shin, N. N. Koval, K. T. Ashurova, S. Yu. Doroshkevich, V. N. Devyatkov, M. S. Torba, V. A. Levanisov. Tech. Phys. Lett., 47 (7), 528 (2021). https://doi.org/10.1134/S1063785021050291
M. S. Vorobyov, N. N. Koval, P. V. Moskvin, A. D. Teresov, S. Yu. Doroshkevich, V. V. Yakovlev, VI. Shin, J. Phys.: Conf. Ser., 1393, 012064 (2019). https://doi.org/10.1088/1742-6596/1393/1/012064
M. S. Vorobyov, T. V. Koval, V. I. Shin, P. V. Moskvin, My Kim An Tran, N. N. Koval, K. Ashurova, S. Yu. Doroshkevich, M. S. Torba. IEEE Trans. Plasma Sci., 49 (9), 2550 (2021). https://doi.org/10.1109/TPS.2021.3089001
S. Yu. Doroshkevich, M. S. Vorobyov, V. V. Yakovlev. IOP Conf. Series, 1115, 022017 (2018). https://doi.org/10.1088/1742-6596/1115/2/022017
V. I. Gushenets, P. M. Schanin. Russ. Phys. J., 44 (9), 962 (2001). https://doi.org/10.1023/A:1014362023321
R. Gunzel. Vac. Sci. Technol., 17 (2), 895 (1999).
V. L. Galanskii, Y. E. Kreindel’, E. M. Oks [et al.]. High Temperature, 25 (5), 632 (1988).
L. G. Vintizenko, N. V. Gavrilov, N. N. Koval, Yu. E. Kreindel, V. S. Tolkachev, P.M. ShchaninImpulsnye vysokovoltnye istochniki elektronov s plasmennym emitterom dlya formirovaniya puchkov bolshogo secheniya, v knige Istochniki elektronov s plazmennym emitterom, ed. by Yu.E. Kreindel (Nauka, Novosibirsk, 1983). (in Russian).
S. P. Bugaev, Yu. E. Kreindel, P. M. Shchanin. Elektronnye puchki bolshogo secheniya (Energoatomizdat, M., 1984). (in Russian).
I. Yu. Bakeev, A. V. Kazakov, A. V. Medovnik, E. M. Oks. J. Phys.: Conf. Ser., 1488, 012001 (2020). https://doi.org/10.1088/1742-6596/1488/1/012001
V. A. Gruzdev, Yu. E. Kreindel, Yu. M. Larin. TVT, 11 (3), 482 (1973). (in Russian).
V. A. Gruzdev, Yu. E. Kreindel, Yu. M. Larin. ZhTF, 43 (11), 2318 (1973). (in Russian).
N. V. Gavrilov, D. R. Emlin, A. S. Kamenetskikh. Tech. Phys., 53 (10), 1308 (2008). https://doi.org/10.1134/S1063784208100083
T. V. Koval, Le Hu Zung. Izv. vuzov. Fizika. 57 (3-2), 118 (2014). (in Russian).
Funding
The work was performed using a grant from the Russian Science Foundation (project no. 20-79-10015).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare that they have no conflict of interest.
Additional information
Publisher’s Note.
Pleiades Publishing remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Vorobyov, M.S., Moskvin, P.V., Shin, V.I. et al. Negative Current Feedback in the Accelerating Gap in Electron Sources with a Plasma Cathode. Tech. Phys. 68 (Suppl 3), S499–S504 (2023). https://doi.org/10.1134/S1063784223900772
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063784223900772