Theoretical and experimental study of the space-charge oscillations in the electron-optical system of a relativistic gyrotron

Journal Article · Thu Dec 15 00:00:00 EST 2011 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X11070075· OSTI ID:22047462

Kulagin, I S ^[1]; Movshevich, B Z ^[1]

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1. Russian Academy of Sciences, Institute of Applied Physics (Russian Federation)

A theoretical and experimental study of the oscillations of a space-charge cloud in a magnetron-injection gun of a powerful relativistic gyrotron has been performed. The charge storage occurs via electron-beam magnetic compression of the reflection of a part of the electrons having the highest transverse velocities from a magnetic mirror. It has been established that at high values of the compression coefficient the beam loses its stability that finally leads to the appearance of the beam current modulation at the frequency of the longitudinal oscillations of an electron beam in an adiabatic trap. According to the numerical simulations, the energy spread in the formed beam under these conditions reaches 4.6%, which is higher by an order of magnitude than that due to the space-charge effect in the beam transported along the metal tube.

• OSTI ID: 22047462
• Journal Information: Plasma Physics Reports, Vol. 37, Issue 13; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM CURRENTS
BEAM TRANSPORT
COMPUTERIZED SIMULATION
ELECTRON BEAMS
ELECTRONS
MAGNETIC COMPRESSION
MAGNETIC MIRRORS
MAGNETRONS
MICROWAVE AMPLIFIERS
MODULATION
OPTICAL SYSTEMS
OSCILLATIONS
PLASMA
RELATIVISTIC RANGE
SPACE CHARGE
TRAPS