Title :
Low-emittance uniform-density Cs+ sources for heavy ion fusion accelerator studies
Author :
Eylon, S. ; Henestroza, E. ; Garvey, T. ; Johnson, R. ; Chupp, W.
Author_Institution :
Lawrence Berkeley Lab., California Univ., Berkeley, CA, USA
Abstract :
A report is presented on the performance of a 5 mA scraped beam source (which eliminates the outermost beam rays in the diode) and on the design of an improved 10 mA source. The new source is based on EGUN calculations which indicated that a beam with good emittance and uniform current density could be obtained by modifying the cathode Pierce electrodes and using a spherical emitting surface. The measurements of the beam current density profile on a test stand were found to be in agreement with the numerical simulations.<>
Keywords :
ion accelerators; ion sources; Cs/sup +/ sources; EGUN calculations; beam current density profile; cathode Pierce electrodes; emittance; heavy ion fusion accelerator studies; low-emittance uniform-density sources; numerical simulations; scraped beam source; spherical emitting surface; test stand; uniform current density; Acceleration; Cathodes; Current density; Current measurement; Diodes; Ion accelerators; Linear particle accelerator; Molecular beam epitaxial growth; Particle beams; Voltage;
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.1991.164841
