Title :
A Smith-Purcell radiation bunch length diagnostic
Author :
Korbly, S.E. ; Shapiro, M.A. ; Temkin, R.J.
Author_Institution :
Plasma Sci. & Fusion Center, MIT, Cambridge, MA, USA
Abstract :
We present the design of a Smith-Purcell radiation diagnostic to measure the micro bunch length of a 20MeV, 17 GHz electron bunch train. The bunch length can be determined by measuring the frequency and angular distribution of the emitted radiation as proposed by Nguyen (1997) and demonstrated by Doucas et al. (2002). The beam is produced by a 17 GHz, 50 MeV/m traveling wave (TW) accelerator built by Haimson Research Corporation (HRC). The high operating frequency of this accelerator allows for the production of ultrashort bunches of about 180 femtoseconds. We present detailed calculations of the optimization of the experimental system and of the expected bunch length resolution.
Keywords :
electron accelerators; linear accelerators; particle beam bunching; particle beam diagnostics; 17 GHz; 180 fs; 20 MeV; Smith Purcell radiation bunch length diagnostic; angular distribution; electron bunch train; emitted radiation; frequency; micro bunch length; traveling wave accelerator; Acceleration; Electron accelerators; Electron beams; Gratings; Klystrons; Length measurement; Linear particle accelerator; Particle beams; Plasma measurements; Radio frequency;
Conference_Titel :
Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7423-1
DOI :
10.1109/ICIMW.2002.1076167
