Relativistic space charge waves in intense neutralized magnetized electron beams

Journal Article · Fri Nov 01 04:00:00 EST 1985 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5535456

Kuzelev, N V; Rukhadze, A A; Sanadze, G V

It is shown that the theory of space charge waves in intense electron beams can only be relativistic. The dispersion characteristics of linear and nonlinear space-charge waves in these beams are analyzed and, in particular, a strong dependence of the dispersion relation of the slow wave on its amplitude is found. The excitation of the slow wave in an intense beam via the process of a simple decay type of Cherenkov instability is considered. The existence of two saturation mechanisms for the instability is demonstrated. For currents below the vacuum limiting current, the saturation mechanism is trapping and strong turbulence of the beam. At high currents, saturation is due to a nonlinear frequency shift without randomization of the beam. The dependence of the beam radiation efficiency on the current is investigated. The efficiency is found analytically in the ultrarelativistic limit.

• Research Organization: Moscow State University
• OSTI ID: 5535456
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 62:5; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
BEAMS
DECAY INSTABILITY
DISPERSION RELATIONS
ELECTRON BEAMS
ENERGY RANGE
INSTABILITY
LEPTON BEAMS
PARTICLE BEAMS
PLASMA INSTABILITY
RELATIVISTIC RANGE
SPACE CHARGE