Accession Number : ADA193593

Title :   Diffraction Transition Radiation from Periodic Electron Bunches.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Lee, Young M.

Report Date : DEC 1987

Pagination or Media Count : 71

Abstract : Measurements of the first lobe of diffraction transition radiation from a hole in a thin aluminum foil for electron-beam energies of 32.9 MeV and 63.3 MeV has been made. The effect of the hole size was investigated using radii of 3 cm, 5 cm, and 7 cm. Although the measured peak angle and intensity are not well matched to the theoretical values, these experiments attempt to isolate the diffraction transition radiation from Cerenkov radiation and transition radiation. The normalization of the detected signal to the beam current was tried for compensation of the beam fluctuation. Conclusive results have not yet been obtained, but this investigation provides directions for future experiments. Keywords: Diffraction transition radiation; Transition radiation; Cerenkov radiation; Normalization.

Descriptors :   *CERENKOV RADIATION, *ELECTRON DIFFRACTION, ALUMINUM FOIL, ANGLES, DIFFRACTION, ELECTRON BEAMS, ENERGY, HOLES(OPENINGS), PEAK VALUES, RADIATION, SIZES(DIMENSIONS), THINNESS, TRANSITIONS, VARIATIONS, THESES, GRAPHS.

Subject Categories : Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE