Investigation of acceleration and densification of electrons utilizing travelling magnetic waves. Final report, 30 September 1983-31 October 1987

Technical Report · Tue Apr 19 00:00:00 EDT 1988

OSTI ID:6664401

Chen, K W; Kim, S H

An experimental investigation of electron-beam physics is reported. Naturally occurring and externally driven low-frequency (6-500 KHz) diocotron oscillations are observed and the m = 1 rotating structure of these oscillations are measured by using electrostatic probes. Systematic analysis of the circuit system for the generation of a fast-rising pinching magnetic field: a circuit consisted of distributed circuit (transmission line) part and lumped circuit parts included a coil are systematically analyzed from the first principles of circuit. A computer code to calculate expediently the temporal profile of the pinching magnetic field is developed. Theoretical study of acceleration of high-energy electron beams by a laser light through net inverse bremsstrahlung in plasma fields: the absorption of the incident laser photons by net inverse bremsstrahlung can give rise to the dc ponderomotive force whose strength is far greater than the amplitude of the Lorentz force of the laser wave. Study of a soft-x-ray free-electron laser (FEL) scheme using a two-beam elliptical pill-box wake-field cavity: it is found that the scheme provides sufficient gain as a coherent radiation source down to the x-ray regime. Wake field acceleration research: the theoretical result from the modal analysis developed here agrees with the recent experiment in both profile (shape) and magnitude of the wake potential. Development of a laser photocathode for the generation of high-current short-length electron bunch, and design and construction of a modified betatron: a modified betatron called the UTA Modified Betatron was constructed.

• Research Organization: Texas A and M Univ., College Station (USA). Texas Engineering Experiment Station
• OSTI ID: 6664401
• Report Number(s): AD-A-197700/8/XAB
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING
BETATRONS
ELECTRON BEAMS
ACCELERATION
FREE ELECTRON LASERS
ABSORPTION
BREMSSTRAHLUNG
COHERENT RADIATION
DISTRIBUTION
ELECTRON DENSITY
ELECTROSTATIC PROBES
LORENTZ FORCE
MAGNETIC FIELDS
PHOTOCATHODES
PHOTONS
PINCH EFFECT
PROGRESS REPORT
ACCELERATORS
BEAMS
CATHODES
CYCLIC ACCELERATORS
DOCUMENT TYPES
ELECTRODES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
LASERS
LEPTON BEAMS
MASSLESS PARTICLES
PARTICLE BEAMS
PROBES
RADIATIONS
430100* - Particle Accelerators- Design
Development
& Operation
420300 - Engineering- Lasers- (-1989)