Title :
Plasma source test and simulation results for the underdense plasma lens experiment at the UCLA Neptune Laboratory
Author :
Suk, H. ; Clayton, C.E. ; Joshi, C. ; Katsouleas, T.C. ; Muggli, P. ; Narang, R. ; Pellegrini, C. ; Rosenzweig, J.B.
Author_Institution :
Dept. of Phys. & Astron., California Univ., Los Angeles, CA, USA
fDate :
2/1/2000 12:00:00 AM
Abstract :
The planned plasma lens experiment at the UCLA Neptune Laboratory is described. In the experiment, electron beams with an energy of 16 MeV, a charge of 4 nC, and a pulse duration of 30 ps [full-width at half-maximum (FWHM)] are designed to be produced from the 1.625-cell photoinjector radio-frequency gun (f=2.856 GHz) and PWT linac in the Neptune. The generated beams are passed through a thin plasma with a density of low 1012 cm-3 range and a thickness of a few centimeters. For this experiment, a LaB6-based discharge plasma source was developed and tested. In this paper, the overview of the planned plasma lens experiment and the test results of the plasma source for various conditions are presented. In addition, computer simulations with a 2-1/2 dimensional particle-in-cell code (MAGIC) were performed and the simulation results are shown
Keywords :
electron beams; electron lenses; plasma density; plasma devices; plasma diagnostics; plasma simulation; plasma-beam interactions; 2-1/2 dimensional particle-in-cell code; 2.856 GHz; 4 MeV; LaB6-based discharge plasma source; MAGIC PIC code; PWT linac; UCLA Neptune Laboratory; axial distance; computer simulations; discharge plasma; dynamically focused beams; electron beam charge; electron beam energy; electron beam momentum; photoinjector RF gun; photoinjector radio-frequency gun; plasma density; plasma lens experiment; plasma source simulation; plasma source test; plasma thickness; pulse duration; thin plasma; underdense plasma lens experiment; Computer simulation; Electron beams; Laboratories; Lenses; Linear particle accelerator; Plasma density; Plasma simulation; Plasma sources; Radio frequency; Testing;
Journal_Title :
Plasma Science, IEEE Transactions on
