Abstract
Methods used for the measurement of the efficiency of the electron beam formation in an open discharge are critically analyzed. It is shown that a high efficiency determined as the ratio of the beam current to the total current, η=j e/j, can serve neither as evidence for one of the open discharge mechanisms nor as a true criterion of the energy efficiency of the beam formation. Under typical open discharge conditions, when electrons in the entire discharge gap occur in the runaway regime, the η value is close to the geometric transparency of the anode grid and is independent of the coefficient of electron emission (γ) from the cathode. It is also demonstrated that recent experiments reported by P.A. Bokhan and D.E. Zakrevsky [Tech. Phys. Lett. 28, 74 (2002) do not prove the photoelectron nature of the discharge studied but, on the contrary, confirm once again that the open discharge is not induced by photoelectrons.
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References
A. P. Bokhan and P. A. Bokhan, Pis’ma Zh. Tekh. Fiz. 27(6), 7 (2001) [Tech. Phys. Lett. 27, 220 (2001)].
A. P. Bokhan and D. E. Zakrevsky, Pis’ma Zh. Tekh. Fiz. 28(2), 74 (2002) [Tech. Phys. Lett. 28, 73 (2002)].
G. V. Kolbychev and I. V. Ptashnik, Opt. Atmos. Okeana 12(11), 1070 (1999).
G. V. Kolbychev, Opt. Atmos. Okeana 14(11), 1056 (2001).
A. R. Sorokin, Pis’ma Zh. Tekh. Fiz. 21(20), 37 (1995) [Tech. Phys. Lett. 21, 832 (1995)].
A. R. Sorokin, Zh. Tekh. Fiz. 68(3), 33 (1998) [Tech. Phys. 43, 296 (1998)].
A. R. Sorokin, Opt. Atmos. Okeana 14(11), 1062 (2001).
A. R. Sorokin, Pis’ma Zh. Tekh. Fiz. 28(9), 14 (2002) [Tech. Phys. Lett. 28, 361 (2002)].
G. V. Kolbychev and E. A. Samyshkin, Zh. Tekh. Fiz. 51(10), 2032 (1981) [Sov. Phys. Tech. Phys. 26, 1185 (1981)].
V. P. Demkin, B. V. Korolev, and S. V. Mel’nichuk, Fiz. Plazmy 21, 81 (1995) [Plasma Phys. Rep. 21, 76 (1995)].
A. R. Sorokin, Pis’ma Zh. Tekh. Fiz. 22(13), 17 (1996) [Tech. Phys. Lett. 22, 526 (1996)].
S. V. Arlantsev, B. L. Borovich, V. V. Buchanov, et al., J. Russ. Laser Res. 16(2), 99 (1995).
M. A. Zav’yalov, Yu. E. Kreindel’, A. A. Novikov, and L. P. Shanturin, Plasma Processes in Electron Guns (Énergoatomizdat, Moscow, 1989).
Z. Yu, J. J. Rocca, and G. J. Collins, J. Appl. Phys. 54(1), 131 (1983).
G. V. Kolbychev, Opt. Atmos. Okeana 6(6), 635 (1993).
I. V. Vagner, É. I. Bolgov, et al., Avtom. Svarka, No. 12, 27 (1972).
B. I. Moskalev, Hollow Cathode Discharge (Énergiya, Moscow, 1969).
Yu. E. Kreindel’, Plasma Electron Sources (Atomizdat, Moscow, 1977).
K. A. Klimenko and Yu. D. Korolev, Zh. Tekh. Fiz. 60(9), 138 (1990) [Sov. Phys. Tech. Phys. 35, 1084 (1990)].
Yu. P. Raizer, Gas Discharge Physics (Nauka, Moscow, 1987).
A. A. Kudryavtsev and L. D. Tsendin, Pis’ma Zh. Tekh. Fiz. 27(7), 46 (2001) [Tech. Phys. Lett. 27, 284 (2001)].
B. N. Klyarfel’d and B. I. Moskalev, Zh. Tekh. Fiz. 39(6), 1066 (1969) [Sov. Phys. Tech. Phys. 14, 800 (1969)].
V. Yu. Baranov, V. M. Borisov, F. I. Vysikailo, et al., Energy Balance and Excitation Rates for Individual Levels in F 2 :Xe:He Mixtures (Inst. At. Énergii, Moscow, 1979), Preprint No. 3080.
G. V. Kolbychev, P. D. Kolbycheva, and I. V. Ptashnik, Zh. Tekh. Fiz. 66(2), 59 (1996) [Tech. Phys. 41, 144 (1996)].
A. R. Sorokin, Pis’ma Zh. Tekh. Fiz. 26(24), 89 (2000) [Tech. Phys. Lett. 26, 1114 (2000)].
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 29, No. 4, 2003, pp. 86–94.
Original Russian Text Copyright © 2003 by Sorokin.
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Sorokin, A.R. A comment on the measurement of efficiency of the electron beam formation in an open discharge. Tech. Phys. Lett. 29, 171–174 (2003). https://doi.org/10.1134/1.1558759
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DOI: https://doi.org/10.1134/1.1558759