Experimental study of passive compensation of space charge at the Los Alamos National Laboratory Proton Storage Ring

The inductance of the vacuum chamber of the Proton Storage Ring at Los Alamos National Laboratory was intentionally increased by the introduction of ferrite rings to counteract the longitudinal space-charge effect of the intense beam. The magnetic permeability of the ferrite could be adjusted by int...

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Published inPhysical review special topics. PRST-AB. Accelerators and beams Vol. 2; no. 6; p. 064201
Main Authors Plum, M. A., Fitzgerald, D. H., Langenbrunner, J., Macek, R. J., Merrill, F. E., Neri, F., Thiessen, H. A., Walstrom, P. L., Griffin, J. E., Ng, K. Y., Qian, Z. B., Wildman, D., Prichard, B. A.
Format Journal Article
LanguageEnglish
Published College Park American Physical Society 01.06.1999
Subjects
Ferrites
Inductance
Laboratories
Magnetic permeability
Protons
Solenoids
Space charge
Vacuum chambers
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Summary:The inductance of the vacuum chamber of the Proton Storage Ring at Los Alamos National Laboratory was intentionally increased by the introduction of ferrite rings to counteract the longitudinal space-charge effect of the intense beam. The magnetic permeability of the ferrite could be adjusted by introducing current into solenoids wound around the ferrite. Results show that the minimum rf voltage necessary to stabilize the beam against e−p instability may be reduced over that previously measured. The injected bunch length was observed to be longer when the ferrite was heavily biased so that its effect was reduced.
ISSN:1098-4402
1098-4402
2469-9888
DOI:10.1103/PhysRevSTAB.2.064201