Title :
Measurements of halo generation for a proton beam in a FODO channel
Author :
Colestock, P.L. ; Allen, C.K. ; Chan, K.C.D. ; Crandall, K.R. ; Garnett, R.W. ; Gilpatrick, D. ; Lysenko, W. ; Schneider, J.D. ; Schulze, M.E. ; Sheffield, R.L. ; Smith, H.V. ; Wangler, T.P.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
An experimental effort has been undertaken to investigate the production of halo particles in a proton beam having significant space charge forces. The LEDA RFQ was used to inject a pulsed 6.7 MeV 15-75 mA beam into a linear FODO channel. Four matching quads at the input of this 52-quadrupole transport line were used to generate specific mismatch oscillations, believed to be a key mechanism in the generation of beam halo. A suite of diagnostics that provide beam profile measurements over a wide dynamic range enabled a detailed comparison of measurements with theoretical models
Keywords :
beam handling equipment; particle beam diagnostics; proton beams; FODO channel; LEDA; RFQ; beam halo; beam profile measurements; mismatch oscillations; proton beam; space charge forces; Atomic beams; Atomic measurements; Dynamic range; Force measurement; Iron; Laboratories; Particle beam measurements; Particle beams; Space charge; US Department of Energy;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987461
