Observations of field profile modifications in a Raman free-electron laser amplifier

Journal Article · Sun Oct 01 00:00:00 EDT 1989 · Physics of Fluids B: Plasma Physics; (USA)

DOI:https://doi.org/10.1063/1.859071· OSTI ID:5522609

Xu, K; Bekefi, G; Leibovitch, C ^[1]

---

1. Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (US)

Measurements of the spatial distribution of the rf electric field intensities and phases induced in a free-electron laser (FEL) amplifier operating in the collective (Raman) regime are reported. The studies are carried out at a microwave frequency of {similar to}10 GHz in a FEL using a mildly relativistic electron beam of {similar to}160 keV energy and 1-- 4 A current. The probing of the ponderomotive (space-charge) and electromagnetic waves is accomplished by means of small movable electric dipole antennas inserted into the interaction region.

• OSTI ID: 5522609
• Journal Information: Physics of Fluids B: Plasma Physics; (USA), Journal Name: Physics of Fluids B: Plasma Physics; (USA) Vol. 1:10; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFIERS
ANTENNAS
DIPOLES
DISTRIBUTION
ELECTRIC FIELDS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
FREE ELECTRON LASERS
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
KEV RANGE
KEV RANGE 100-1000
LASERS
MODIFICATIONS
MULTIPOLES
RAMAN EFFECT
SPATIAL DISTRIBUTION