Title :
Emittance measurements of FEL accelerators using optical transition radiation methods
Author :
Fiorito, R.B. ; Rule, D.W. ; Lumpkin, A.H. ; Tokar, R.L. ; Dowell, D.H. ; Sellyey, W.C. ; Lowrey, A.R.
Author_Institution :
US Naval Surface Warfare Center, Silver Spring, MD, USA
Abstract :
Measurements of the emittance of the Boeing free electron laser accelerator operating at 107 MeV, were performed using optical transition radiation (OTR). The results of the three measurement methods, measurement of beam spot size as a function of magnetic quadrupole focusing strength, two screen beam spot measurements, and beam spot-divergence measurements using an OTR interferometer, are compared and shown to be in excellent agreement.<>
Keywords :
electron accelerators; linear accelerators; particle beam diagnostics; Boeing free electron laser accelerator; OTR interferometer; beam monitoring; beam spot-divergence measurements; magnetic quadrupole focusing strength; optical transition radiation; particle beam diagnostics; screen beam spot measurements; Electron accelerators; Electron emission; Electron optics; Free electron lasers; Laser beams; Laser transitions; Optical interferometry; Performance evaluation; Size measurement; Stimulated emission;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164581
