Skip to content

Research at St Andrews

Operation of a relativistic rising-sun magnetron with cathodes of various diameters

Research output: Contribution to journalArticlepeer-review

DOI

Author(s)

Y M Saveliev, B A Kerr, M I Harbour, S C Douglas, W Sibbett

School/Research organisations

Abstract

This paper presents results of an experimental investigation of a relativistic L-band (1.3 GHz) 10-cavity rising-sun magnetron with cathodes of various diameters. A major goal was to investigate the effect of the cathode diameter on the overall performance, mode stability and pulse shortening of this magnetron when operating at voltages of 100-500 kV and microwave peak power of P-mu similar to 100-700 MW. The largest levels of Pmu similar to 700 MW have been achieved, as expected, with cylindrical velvet cathodes. Mode structure and mode competition/switching for each cathode has been investigated in the entire range of operating magnetic fields., A cathode plasma expansion was found to be not the primary factor in a mode instability and pulse shortening of the magnetron investigated. Experimental results on effective magnetron diode gap, uniformity of electron emission, variation of the peak microwave power and microwave pulse duration with the cathode diameter and a correlation between the magnetron operating point and Buneman-Hartree curves are also presented and discussed.

Close

Details

Original languageEnglish
Pages (from-to)938-946
Number of pages9
JournalIEEE Transactions on Plasma Science
Volume30
DOIs
Publication statusPublished - Jun 2002

    Research areas

  • explosive emission cathode, high-power microwaves, magnetron diode, mode competition, pulse shortening, relativistic rising-sun magnetron, MICROWAVE SOURCES, SIMULATION

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. 3D laser nano-printing on fibre paves the way for super-focusing of multimode laser radiation

    Sokolovskii, G. S., Melissinaki, V., Fedorova, K. A., Dudelev, V., Losev, S. N., Bougrov, V. E., Sibbett, W., Farsari, M. & Rafailov, E. U., 2 Oct 2018, In: Scientific Reports. 8, 9 p., 14618.

    Research output: Contribution to journalArticlepeer-review

  2. Ultrafast high-repetition-rate waveguide lasers

    Shepherd, D., Choudhary, A., Lagatsky, A. A., Kannan, P., Beecher, S., Eason, R., Mackenzie, J., Feng, X., Sibbett, W. & Brown, C. T. A., Mar 2016, In: IEEE Journal of Selected Topics in Quantum Electronics. 22, 2

    Research output: Contribution to journalArticlepeer-review

  3. Dropout dynamics in pulsed quantum dot lasers due to mode jumping

    Sokolovskii, G. S., Viktorov, E. A., Abusaa, M., Danckaert, J., Dudelev, V. V., Kolykhalova, E. D., Soboleva, K. K., Deryagin, A. G., Novikov, I. I., Maximov, M. V., Zhukov, A. E., Ustinov, V. M., Kuchinskii, V. I., Sibbett, W., Rafailov, E. U. & Erneux, T., 29 Jun 2015, In: Applied Physics Letters. 106, 26, 5 p., 261103.

    Research output: Contribution to journalArticlepeer-review

  4. Optical trapping with superfocused high-M2 laser diode beam

    Sokolovskii, G. S., Dudelev, V. V., Melissinaki, V., Losev, S. N., Sobolev, K. K., Deryagin, A. G., Kuchinskii, V. I., Farsari, M., Sibbett, W. & Rafailov, E. U., 3 Mar 2015, Laser Resonators, Microresonators, and Beam Control XVII. Kudryashov, AV., Paxton, AH., Ilchenko, VS., Aschke, L. & Washio, K. (eds.). Bellingham: SPIE, 7 p. (Proceedings of SPIE; vol. 9343).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  5. A diode-pumped 1.5 mu m waveguide laser mode-locked at 6.8 GHz by a quantum dot SESAM

    Choudhary, A., Lagatsky, A. A., Zhang, Z. Y., Zhou, K. J., Wang, Q., Hogg, R. A., Pradeesh, K., Rafailov, E. U., Sibbett, W., Brown, C. T. A. & Shepherd, D. P., Oct 2013, In: Laser Physics Letters. 10, 10, 4 p., 105803.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Numerical Simulation of Plasma-Based Raman Amplification of Laser Pulses to Petawatt Powers

    Trines, R. M. G. M., Fiuza, F., Fonseca, R. A., Silva, L. O., Bingham, R., Cairns, R. A. & Norreys, P. A., Nov 2011, In: IEEE Transactions on Plasma Science. 39, 11, p. 2622-2623 2 p.

    Research output: Contribution to journalArticlepeer-review

  2. Laser-driven proton beams: Acceleration mechanism, beam optimization, and radiographic applications

    Borghesi, M., Cecchetti, C. A., Toncian, T., Fuchs, J., Romagnani, L., Kar, S., Wilson, P. A., Antici, P., Audebert, P., Brambrink, E., Pipahl, A., Amin, M., Jung, R., Osterholz, J., Willi, O., Nazarov, W., Clarke, R. J., Notley, M., Neely, D., Mora, P. & 5 others, Grismayer, T., Schurtz, G., Schiavi, A., Sentoku, Y. & d'Humieres, E., Aug 2008, In: IEEE Transactions on Plasma Science. 36, p. 1833-1842 10 p.

    Research output: Contribution to journalArticlepeer-review

  3. Waves in magnetized dusty plasmas with variable charge on dust particles

    de Juli, MC., Schneider, RD., Falceta-Goncalves, DA. & Jatenco-Pereira, V., Apr 2004, In: IEEE Transactions on Plasma Science. 32, 2, p. 542-550 9 p.

    Research output: Contribution to journalArticlepeer-review

  4. Production of sheet electron beams with crossed-field secondary emission diodes

    Saveliev, Y. M., Sibbett, W. & Kerr, B. A., Oct 2002, In: IEEE Transactions on Plasma Science. 30, p. 1832-1836 5 p.

    Research output: Contribution to journalArticlepeer-review

ID: 765460

Top