Abstract.
S – band BAC multiple-beam klystron BT258 was developed at VDBT with support of
CERN. Two samples of multiple-beam klystrons were fabricated and tested at
VDBT. Maximum efficiency of 64% was obtained at an output level of 6,4 MW. The
efficiency in the vicinity of 60% for one of multiple beam klystrons was
successively confirmed in tests at CERN. BAC – method of electron grouping is
discussed and comparison of output parameters of multuple-beam klystron with
the existing classical klystrons is given in the article.
Key
words: vacuum electronics, multiple-beam
klystron, BAC method.
References
1.
Baikov, A. Yu., Marrelli, C., and Syratchev, I., “Toward high-power klystrons
with RF power conversion efficiencies on the order of 90%”. IEEE. Trans. Elec.
Dev., 62(10), pp. 3406-3412, 2015.
2.
I. Guzilov, “BAC Method of Increasing the Efficiency in Klystrons”. IEEE
Vacuum Electron Sources Conference (IVESC2014), Russia, Saint Petersburg, June 29-July 4,
2014.
3.
Baikov, A. Yu., Grushina, O. A., and Strikhanov, M. N., “Simulations of
conditions for the maximal efficiency of decimeter-wave klystrons”. Technical
Physics, 59(3), pp. 421-427, 2014.
4.
R. Marchesin, Q. Vuillemin, Thales Electron Devices, private communication,
2016.
5.
I. Guzilov, R. Egorov, O. Maslennikov, G. Mcmonagle, I.Syratchev, B. Woolley
“Commercial Prototype of High Efficiency S-band Pulsed BAC MBK”. IEEE Vacuum
Electron Sources Conference (IVESC2016), Korea, Seoul, October 18-20, 2016.
6.
I.Guzilov, O.Maslennikov, R.Egorov, I.Syratchev, V.Kobets, A.Sumbaev.
Comparison of 6 MW S-band Pulsed BAC MBK with the Existing SBKs. 18th
International Vacuum Electronics Conference, p. 68, London, April 24-26, 2017.