Measurement of electron beam emittance using optical transition radiation and development of a diffuse screen electron beam monitor
By: Carlton B. Reid Jr
Contributors: Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1990
Place of publication: Monterey, California
Language: eng
Format: [electronic resource]
Number of pages: 112
Subjects: Physics; Radiation
Description: An experimental technique for measuring electron beam emittance using Optical Transition Radiation (OTR) with the Wartski Interferometer Method has been applied to the Naval Postgraduate School linear electron accelerator. Data for obtaining the emittance of the NPS linac has been collected. A chronology of the procedure for using OTR as a beam diagnostic at the NPS Linac is described in detail. A novel OTR beam monitor consisting of a surface purposely made diffuse was also developed and proved to be an excellent profile monitor. It can be used to measure the shape of the electron beam incident on a vacuum/metal interface over a viewing angle range of +/-30 degrees. Beam current and profile measurements using the diffuse screen were compared with measurements using a front surface mirror and a fluorescent screen. The diffuse screen demonstrated a linear response to current while the fluorescent screen showed an exponential response. The OTR produced the beam incident on the diffuse screen and accurately reflected the shape of the electron beam while the secondary electron effects of the fluorescent screen distorted the image.
Notes: Thesis Advisor(s): Maruyama, Xavier K. ; Second Reader: Buskirk, Fred R.

"December 1990."

Author(s) subject terms: Transition radiation, Lorentz Factor, diffraction pattern, charged particle beam profiling.

Description based on title screen as viewed on April 1, 2010.

DTIC Identifier(s): Transition radiation, beam monitors, charged particle beams, diffuse screens, Optical Transition Radiation, Wartski Interferometers, Cerenkov Radiation, theses.

Thesis (M.S. in Physics)--Naval Postgraduate School, December 1990.

Includes bibliographical references (p. 110).

"Approved for public release, distribution unlimited"--Cover.

Also available in print.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat Reader.

US Army (USA) author.

vs/ oclc 4/5/2010.