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Low emittance growth funneling line: preliminary design and beam dynamics study

Conference ·
DOI:https://doi.org/10.1063/1.35577· OSTI ID:5374908
A theoretical design study has resulted in a conceptual funneling-line design that has a transverse emittance growth limited to only 15% based on beam-dynamics calculations. Two 2-MeV, 100-mA proton beams are funneled from a two-channel, 212.5-MHz radio-frequency quadrupole (RFQ) to a single beam suitable for injection into a 425-MHz linac. The design uses permanent-magnet quadrupoles, dipoles, and combined-function elements. The low emittance growth is obtained by arranging the focusing strength, the periodic structure, and the bending elements so as to minimize abrupt changes in the beam environmental with consequent charge redistribution and space-charge-caused emittance growth.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5374908
Report Number(s):
LA-UR-85-2189; CONF-8505164-5; ON: DE85015687
Country of Publication:
United States
Language:
English