A novel diode featuring an annular cathode and a ring-shaped focusing electrode and operating in a low guiding magnetic field (GMF) has been developed. It was found that the breakdown threshold for a focusing electrode made of titanium was 140 kV/cm higher than a stainless steel electrode for the same operating conditions. Comparison of the diode current measured by a Rogowski coil and the beam current measured by a Faraday cup at the collector indicated that an intense relativistic electron beam was transmitted effectively even in a GMF of as low as 0.21 T. In addition, a photo of the cathode plasma and the targeting results indicated that the emission uniformity of the graphite cathode was satisfactory.
REFERENCES
1.
J.
Benford
, J. A.
Swegle
, and E.
Schamiloglu
, High Power Microwaves
(Taylor and Francis
, New York
, 2007
).2.
R. J.
Barker
and E.
Schamiloglu
, High-Power Microwave Sources and Technologies
(Tsinghua University Press
, Beijing
, 2006
).3.
S. H.
Gold
and G. S.
Nusinovich
, Rev. Sci. Instrum.
68
, 3945
(1997
).4.
J.
Sun
, P.
Wu
, S. F.
Huo
, W. B.
Tan
, H.
Shao
, C. C.
Chen
, and G. Z.
Liu
, IEEE Trans. Plasma Sci.
42
, 2179
(2014
).5.
G.
Shafir
, M.
Kreif
, J. Z.
Gleizer
, S.
Gleizer
, Y. E.
Krasik
, A. V.
Gunin
, O. P.
Kutenkov
, I. V.
Pegel
, and V. V.
Rostov
, J. Appl. Phys.
118
, 193302
(2015
).6.
V. G.
Baryshevsky
, N. A.
Belous
, A. M.
Belov
, A. A.
Gurinovich
, E. A.
Gurinovich
, E. A.
Gurnevich
, and P. V.
Molchanov
, IEEE Trans. Plasma Sci.
44
, 1103
(2016
).7.
P.
Wu
, J.
Sun
, and Y.
Teng
, J. Appl. Phys.
122
, 224506
(2017
).8.
J. P.
Ling
, J. D.
Zhang
, J. T.
He
, L.
Wang
, and B. F.
Deng
, Rev. Sci. Instrum.
85
, 084702
(2014
).9.
V. V.
Rostov
, A. V.
Gunin
, R. V.
Tsygankov
, I. V.
Romanchenko
, and M. I.
Yalandin
, IEEE Trans. Plasma Sci.
46
, 33
(2018
).10.
F. C.
Dang
, X. P.
Zhang
, J.
Zhang
, J. C.
Ju
, and H. H.
Zhong
, J. Appl. Phys.
121
, 123305
(2017
).11.
J. R.
Pierce
, Theory and Design of Electron Guns
, 2nd ed. (Van Nostrand
, New York
, 1954
).12.
E. M.
Totmeninov
, S. A.
Kitsanov
, and P. V.
Vykhodtsev
, IEEE Trans. Plasma Sci.
39
, 1150
(2011
).13.
E. M.
Tot’meninov
, A. S.
Stepchenko
, V. V.
Rostov
, and A. I.
Klimov
, Tech. Phys.
63
, 581
–584
(2018
).14.
L. M.
Guo
, T.
Shu
, Z. Q.
Li
, J. C.
Ju
, A. K.
Li
, Y. W.
Fan
, J. M.
Gao
, and L. B.
Yan
, J. Appl. Phys.
124
, 103302
(2018
).15.
X. L.
Wu
, C. H.
Chen
, Y.
Teng
, P.
Wu
, Y. C.
Shi
, D. W.
Yang
, and J.
Sun
, AIP Adv.
9
(6
), 065006
(2019
).16.
G. A.
Farrall
, M.
Owens
, and F. G.
Hudda
, J. Appl. Phys.
46
, 610
(1975
).17.
J. H.
Booske
, Phys. Plasmas
15
, 055502
(2008
).18.
J. P.
Ling
, J. D.
Zhang
, J. T.
He
, and T.
Jiang
, Phys. Plasmas
21
, 023114
(2014
).19.
J. L.
Xie
, C. H.
Chen
, C.
Chang
, C.
Wu
, Y. C.
Shi
, Y. B.
Cao
, Z. M.
Song
, and Y. C.
Zhang
, Phys. Plasmas
25
, 023303
(2018
).20.
F. R.
Schwirzke
, IEEE Trans. Plasma Sci.
19
, 690
(1991
).21.
J.
Zhou
, D. G.
Liu
, C.
Liao
, and Z. H.
Li
, IEEE Trans. Plasma Sci.
37
, 2002
(2009
).22.
R. Z.
Xiao
, Y. Z.
Lin
, Z. M.
Song
, C. H.
Chen
, and G. Z.
Liu
, IEEE Trans. Plasma Sci.
35
, 1456
(2007
).23.
T.
Shao
, W.
Yang
, C.
Zhang
, Z.
Niu
, P.
Yan
, and E.
Schamiloglu
, Appl. Phys. Lett.
105
, 071607
(2014
).© 2020 Author(s).
2020
Author(s)
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