Technical Physics
To authors
Influence of anode and cathode plasmas on the operation of an electronic diode with an explosive-emission cathode
Pushkarev A. I.
1, Polisadov S.S. 1
1Tomsk Polytechnic University, Tomsk, Russia
Email: aipush@mail.ru, polisad95@gmail.com
The results of modeling and experimental investigation of the formation of anode and cathode plasmas in a vacuum diode with an explosive-emission cathode during the generation of a pulsed electron beam with a current density of 0.3-0.4 kA/cm2 and an accelerating voltage of 300-500 kV are presented. It is shown that the concentration of the anode plasma does not exceed 1010 cm-3 and it does not significantly contribute to the operation of the diode. However, the complete desorption of molecules from the working surface of the explosive-emission cathode and the high efficiency of shock ionization of atoms ensure the formation of a cathode gas plasma with a concentration of ~1016 cm-3. It is found that the charge of the explosive-emission plasma layer is significantly less than the charge of the electron beam and the main source of electrons is not an explosive-emission plasma, but a cathode gas plasma. In this case, the electron current is limited by the concentration of the cathode plasma. The use of a cathode with a developed surface (a cathode with a carbon fabric coating) allows increasing the total charge of the electron beam by more than 1.5 times without changing the cathode diameter and the anode-cathode gap. Keywords: high-current electron beam, explosive emission, plasma concentration, electronically stimulated desorption.
- S.P. Bugayev, Yu.E. Krendel, P.M. Shchanin. Elektronnye puchki bolshogo secheniya (Energoatomizdat, M., 1984) (in Russian)
- G.A. Mesyats. Impulsnaya energetika i elektronika (Nauka, M., 2004) (in Russian)
- S.Yu. Sokovnin. Nanosekundnye uskoriteli elektronov dlya radiatsionnykh tekhnologiy (Izd-vo Uralskogo GAU, Yekaterinburg, 2017) (in Russian)
- Yu.A. Kotov, S.Yu. Sokovnin, M.E. Balezin. ZhTF, 73 (4), 124 (2003) (in Russian)
- Ya.E. Krasik, A. Dunaevsky, J.Z. Gleizer, J. Felsteiner, Yu.A. Kotov, S.Yu. Sokovnin, M.E. Balezin. J. Appl. Phys., 91, 9385 (2002). DOI: 10.1063/1.1476964
- E.N. Abdullin, G.P. Bazhenov. ZhTF, 51 (9), 1969 (1981) (in Russian)
- I. Langmuir. Phys. Rev., 2, 45, (1913)
- R.K. Parker, R.E. Anderson, C.V. Duncan. J. Appl. Phys., 45 (6), 2463 (1974)
- A.I. Pushkarev, R.V. Sazonov. Pribory i tekhnika eksperimenta, 6, 103 (2008) (in Russian)
- S.Ya. Belomyttsev, S.D. Korovin, G.A. Mesyats. Pisma v ZhTF, 6 (18), 1089 (1980) (in Russian)
- I.V. Pegel. Nestatsionarnye protsessy generatsii silnotochnykh elektronnykh puchkov i moshchnykh impulsov elektromagnitnogo izlucheniya. Thesis for the degree of Doctor of Physical and Mathematical Sciences (Tomsk, 2006), 213 p. (in Russian)
- G.A. Mesyats, D.I. Proskurovsky. Impulsny elektrichesky razryad v vakuume (Nauka, Novosibirsk, 1984) (in Russian)
- Li Limin, L. Chang, J. Liu, G. Chen, J. Wen. Laser and Particle Beams, 30 (4), 541 (2012)
- D. Yarmolich, V. Vekselman, V.Tz. Gurovich, J.Z. Gleizer, J. Felsteiner, Ya.E. Krasik. Phys. Plasmas, 15, 123507 (2008)
- D.I. Proskurovsky. Plazmennaya elektronika (Izd-vo TPU, Tomsk, 2010) (in Russian)
- A.I. Pushkarev, Yu.N. Novoselov, R.V. Sazonov. Pribory i tekhnika eksperimenta, 5, 117 (2007) (in Russian)
- Yu.I. Isakova, A.I. Pushkarev, G.E. Kholodnaya. Pribory i tekhnika eksperimenta, 2, 39 (2011) (in Russian)
- A.I. Pushkarev. ZhTF, 78 (3), 78 (2008) (in Russian)
- V.N. Ageyev, O.P. Burmistrova, Yu.L. Kuznetsov. UFN, 158 (3), 389 (1989) (in Russian).
- C.E. Young, J.E. Whitten, M.J. Pellin, D.M. Gruen, P.L. Jones. Proceedings of the Fourth International Workshop Desorption Induced by Electronic Transitions DIET IV, (1989), p. 187
- P. Feulner. Proceedings of the Second International Workshop Desorption Induced by Electronic Transitions. DIET II., (1984), p. 142
- Z.W. Gortel, H.J. Kreuzer, P. Feulner, D. Menzel. Proceedings of the Third International Workshop Desorption Induced by Electronic Transitions. DIET III. (1987), p. 173
- Electronic source. Available at: https://physics.nist. gov/PhysRefData/Ionization/atom_index.html
- P. Sigmund. Particle Penetration and Radiation Effects. Volume 2: Penetration of Atomic and Molecular Ions (Springer International Publishing. 2014)
- M. Berger, J. Coursey, M. Zucker, Chang J. NIST Standard Reference Database, 124 (2017). https://physics.nist.gov/PhysRefData/Star/Text/ESTAR.html
- T.E. Madey, R. Stockbauer. Experimental methods in electron and photon-stimulated desorption. In Methods of Experimental Physics:V. 22. Ed. by R.L. Park, M.G. Lagally (Academic Press Inc., 1985)
- V.P. Krivobokov. Radiatsionnye i plazmennye tekhnologii: terminologichesky spravochnik (Nauka, Novosibirsk, 2010) (in Russian)
- V.N. Ageyev, Yu.A. Kuznetsov, B.V. Yakshinsky. FTT, 24, 349 (1982) (in Russian)
- V.N. Ageev, O.P. Burmistrova, B.V. Yakshinskn. Surf. Sci., 194, 101 (1988)
- T.E. Madey, J.T. Yates. J. Vacuum Sci. Technol., 8, 525 (1971)
- D. Menzel. Topics Appl. Phys., 4, 101 (1975)
- P.H. Dawson. Surf. Sci., 65, 41 (1977)
- V.E. Mironov, B.A. Shestakov. Soobshcheniya obyedinennogo instituta yadernykh issledovaniy. Dubna. 9-86-304, 1-7. (1986) (in Russian)
- A. Fridman. Plasma Chemistry (Cambridge Univer. Press, NY., 2008)
- P.M. Bellan. Fundamentals of Plasma Physics (Cambridge Univer. Press, 2006)
- V.S. Vorob'ev. Plasma Sources Sci. Technol. 4, 163 (1995)
- L.M. Biberman, V.S. Vorobjev, L.T. Yacubov. Adv.Phys. Sci., 107, 353 (1972)
- G.E. Ozur, D.I. Proskurovsky. Istochniki nizkoenergeticheskikh silnotochnykh elektronnykh puchkov s plazmennym anodom (Nauka, Izd-vo SO RAN, Novosibirsk, 2018) (in Russian)
- Y.-K. Kim, J.-P. Desclaux. Phys. Rev. A, 66, 012708 (2002). https://physics.nist.gov/cgi-bin/Ionization/ion_data.php?id=NI \&ision=I\&initial=\&total=Y
- G.A. Mesyats. PMTF, 5, 138 (1980) (in Russian)
- A.I. Puschkarev, Yu.I. Isakova, R.V. Sazonov, G.E. Kholodnaya. Generatsiya puchkov zaryazhennykh chastits v diodakh so vzryvoemissionnym katodom (Fizmatlit, M., 2013) (in Russian)
Подсчитывается количество просмотров абстрактов ("html" на диаграммах) и полных версий статей ("pdf"). Просмотры с одинаковых IP-адресов засчитываются, если происходят с интервалом не менее 2-х часов.
Дата начала обработки статистических данных - 27 января 2016 г.
