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Proceedings Paper

Experimental study of a high-brightness H- beam and its transport through an ESQ focusing system
Author(s): Samar Kumar Guharay; C. K. Allen; Martin P. Reiser; Patrick G. O'Shea
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Paper Abstract

A 6-lens ESQ LEBT system is designed by a detailed computational analysis with the aim of transport a 30 mA, 35 kV high-brightness H- beam over a length of about 30 cm. The computer simulation studies are made using the beam parameters of two types of sources- -a Penning-Dudnikov source at Los Alamos and a volume ionization source of BNL. In our effort for a waist-to-waist transport mode with the ESQ system, the computer simulation results predict a factor of about 1.8 emittance enhancement of the output beam for the Penning-Dudnikov case, while the emittance growth is insignificant for beams from the volume source. The emittance growth is reduced to a factor of about 1.4 by rejecting approximately 10% of the beam particles in the Penning-Dudnikov case. The lens system is fabricated in-house at Maryland. Experiments on beam transport are planned to understand the physics of emittance growth and establish the confidence limit of the computer codes used.

Paper Details

Date Published: 1 April 1992
PDF: 12 pages
Proc. SPIE 1629, Intense Microwave and Particle Beams III, (1 April 1992); doi: 10.1117/12.137142
Show Author Affiliations
Samar Kumar Guharay, Univ. of Maryland (United States)
C. K. Allen, Univ. of Maryland (United States)
Martin P. Reiser, Univ. of Maryland (United States)
Patrick G. O'Shea, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 1629:
Intense Microwave and Particle Beams III
Howard E. Brandt, Editor(s)

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