DocumentCode
858129
Title
Transverse Phase Space Time Dependence of LAMPF´s High Intensity H+ Beam
Author
Hurd, J. ; Browman, A.
Author_Institution
Los Alamos National Laboratory MS-812 Los Alamos, New Mexico 87545
Volume
28
Issue
3
fYear
1981
fDate
6/1/1981 12:00:00 AM
Firstpage
2658
Lastpage
2659
Abstract
The LAMPF H+ injector is pulsed 120 times a second with pulse lengths from 500 to 750 ¿sec long. Large transients in transverse phase space, lasting 100 to 200 ¿sec after turn-on, are regularly observed. The magnitude of these transients appears to increase with increasing currents and source brightness. Because high-current accelerators require great precision in phase-space tailoring to avoid excessive emittance growth during acceleration, these transients cause severe operational problems and can no longer be neglected in the beam tuning procedure. Measurements of transverse phase space as a function of time for the 750-keV, 30-mA peak current H+ beam are presented.
Keywords
Acceleration; Apertures; Brightness; Current measurement; Laboratories; Linear particle accelerator; Particle beams; Pulse measurements; Time measurement; Tuning;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1981.4331788
Filename
4331788
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