Title :
UV laser ionization and electron beam diagnostics for plasma lenses
Author :
Govil, R. ; Volfbeyn, P. ; Leemans, W.
Author_Institution :
Lawrence Berkeley Lab., CA, USA
Abstract :
A comprehensive study of focusing of relativistic electron beams with overdense and underdense plasma lenses requires careful control of plasma density and scale lengths. Plasma lens experiments are planned at the Beam Test Facility of the LBL Center for Beam Physics, using the 50 MeV electron beam delivered by the linac injector from the Advanced Light Source. We present results from an interferometric study of plasmas produced in tri-propylamine vapor with a frequency quadrupled Nd:YAG laser at 266 nm. To study temporal dynamics of plasma lenses we have developed an electron beam diagnostic using optical transition radiation to time resolve beam size and divergence. Electron beam ionization of the plasma has also been investigated
Keywords :
electron beam focusing; photoionisation; plasma density; plasma diagnostics; plasma production by laser; 266 nm; Beam Test Facility; Nd:YAG; Nd:YAl5O12; UV laser ionization; beam divergence; beam size; electron beam diagnostics; electron beam ionization; frequency quadrupled Nd:YAG laser; optical transition radiation; overdense plasma lens; plasma density; plasma lenses; relativistic electron beams; scale lengths; tri-propylamine vapor; underdense plasma lens; Electron beams; Ionization; Laser beams; Laser theory; Lenses; Particle beam injection; Particle beams; Plasma density; Plasma diagnostics; Plasma sources;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.504788
