Title :
First demonstration of staged laser acceleration
Author :
Kimura, W.D. ; Campbell, L.P. ; Dilley, C.E. ; Gottschalk, S.C. ; Quimby, D.C. ; Babzien, M. ; Ben-Zvi, I. ; Gallardo, J.C. ; Kusche, K.P. ; Pogorelsky, I.V. ; Skaritka, J. ; van Steenbergen, A. ; Yakimenko, V. ; Cline, D.B. ; He, P. ; Liu, Y. ; Steinhaue
Author_Institution :
STI Optronics Inc., Bellevue, WA, USA
Abstract :
Two independently-driven laser accelerators were operated together in series for the first time in a proof-of-principle experiment to demonstrate staging. The ability to stage together these, devices is important for eventually building practical laser-driven accelerators. The laser accelerators consisted of two identical inverse free electron lasers (IFEL), where the first IFEL served as a prebuncher, which created ~3-fs long microbunches that were accelerated by the second IFEL. Precise and stable control of the phasing between the microbunches and laser wave inside the second IFEL was demonstrated. The effects of overmodulation of the prebuncher were also investigated. In all cases there was good agreement with the model. Additional details of the microbunch characteristics could be inferred by using the model. Plans for demonstrating monoenergetic laser acceleration are also presented
Keywords :
accelerator control systems; beam handling equipment; collective accelerators; electron accelerators; electron beams; free electron lasers; particle beam bunching; 3 fs; IFEL; electron beams; inverse free electron lasers; laser accelerators; laser wave; long microbunches; monoenergetic laser acceleration; prebuncher; proof-of-principle experiment; stable control; staged laser acceleration; Acceleration; Electron accelerators; Electron beams; Free electron lasers; Laser beams; Laser modes; Masers; Particle beams; Plasma accelerators; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987443
