Title :
Low energy H- beam transport using an electrostatic quadrupole focusing system
Author :
Guharay, S.K. ; Allen, C.K. ; Reiser, M. ; Yun, V.
Author_Institution :
Lab. for Plasma Res., Maryland Univ., College Park, MD, USA
Abstract :
An experiment is designed to transport a round and diverging H/sup -/ beam, with beam current of 30 mA and voltage of 35 kV, over a length of about 30 cm, with the aim of matching it to a radio frequency quadrupole (RFQ) with a modest emittance growth. The low energy beam transport system consists of six electrostatic quadrupole (ESQ) lenses. A linear KV code, in conjunction with a 3-D Laplace solver, is used to configure the electrode geometry. Details on the design and construction of the ESQ system and some preliminary experimental results are presented.<>
Keywords :
beam handling equipment; beam handling techniques; electrostatic accelerators; transport processes; beam current; diverging H/sup -/ beam; electrostatic quadrupole focusing system; emittance growth; lenses; low energy beam transport; radio frequency quadrupole; voltage; Electrostatics; Laboratories; Laplace equations; Lenses; Nonlinear optics; Optical beams; Optical design; Particle beams; Structural 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.1991.164836
