Electromagnetic noise of a nanosecond magnetized high-current electron beam.

Autor: Shunailov, S. A., Mesyats, G. A., Romanchenko, I. V., Rostov, V. V., Sadykova, A. G., Sharypov, K. A., Shpak, V. G., Ulmasculov, M. R., Yalandin, M. I.
Předmět:
Zdroj: Journal of Applied Physics; 10/28/2019, Vol. 126 Issue 16, pN.PAG-N.PAG, 8p, 10 Graphs
Abstrakt: We present an analysis of the characteristics of the noise from a magnetized high-current electron beam at a nanosecond-long interval since the explosive electron emission onset on the graphite cathode by applying accelerating pulses with an amplitude of about −300 kV and a varying subnanosecond rise time. The registration bandwidth of electromagnetic noise and the beam current modulation was as high as 59 GHz. A leading wideband electromagnetic signal linked with a short beam current front was recorded. Subsequent noise, including that with discriminated spectral maxima, can be qualified as spontaneous cyclotron radiation of moderately relativistic electrons rotating in a longitudinal magnetic field. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index