Formation of space-charge bunches in a multivelocity-electron-beam-based microwave oscillator with a cathode unshielded from the magnetic field. / Kalinin, Yu A.; Starodubov, A. V.; Fokin, A. S.
In: Plasma Physics Reports, Vol. 43, No. 2, 01.02.2017, p. 191-195.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Formation of space-charge bunches in a multivelocity-electron-beam-based microwave oscillator with a cathode unshielded from the magnetic field
AU - Kalinin, Yu A.
AU - Starodubov, A. V.
AU - Fokin, A. S.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - The influence of the magnitude and configuration of the magnetic field on the parameters of electron bunches formed in a multivelocity electron beam is analyzed. It is shown that the use of a cathode unshielded from the magnetic field and a nonuniform magnetic field increasing along the drift space enables the formation of compact electron bunches. The ratio between the current density in such bunches and the beam current density at the entrance to the drift space reaches 106, which results in a substantial broadening of the output microwave spectrum due to an increase in the amplitudes of the higher harmonics of the fundamental frequency.
AB - The influence of the magnitude and configuration of the magnetic field on the parameters of electron bunches formed in a multivelocity electron beam is analyzed. It is shown that the use of a cathode unshielded from the magnetic field and a nonuniform magnetic field increasing along the drift space enables the formation of compact electron bunches. The ratio between the current density in such bunches and the beam current density at the entrance to the drift space reaches 106, which results in a substantial broadening of the output microwave spectrum due to an increase in the amplitudes of the higher harmonics of the fundamental frequency.
UR - http://www.scopus.com/inward/record.url?scp=85015883520&partnerID=8YFLogxK
U2 - 10.1134/S1063780X17020076
DO - 10.1134/S1063780X17020076
M3 - Article
AN - SCOPUS:85015883520
VL - 43
SP - 191
EP - 195
JO - Plasma Physics Reports
JF - Plasma Physics Reports
SN - 1063-780X
IS - 2
ER -
ID: 25490548