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HIE-ISOLDE beam transfer lines magnets. LIU-SPS beam loss review Magnets and power converters for beam scraping in LSS6. J. Bauche, G. Le Godec , 22 nd January 2013. HIE-ISOLDE beam transfer lines magnets. Part 1 : MAGNETS. J. Bauche. HIE-ISOLDE beam transfer lines magnets.
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HIE-ISOLDE beam transfer lines magnets • LIU-SPS beam loss review • Magnets and power converters • for beam scraping in LSS6 • J. Bauche, G. Le Godec, 22nd January 2013.
HIE-ISOLDE beam transfer lines magnets • Part 1: MAGNETS • J. Bauche
HIE-ISOLDE beam transfer lines magnets LIU-SPS bumper specification parameters (UPDATE January 2013)
HIE-ISOLDE beam transfer lines magnets • SPS vertical bumpers situation Strategy: manufacture 6 new bumpers for LIU and for spare consolidation Compatible MPLV / MPSV
HIE-ISOLDE beam transfer lines magnets • Integration on SSS girders SSS 615 MPSV + VC = 860 mm SSS 421 MPLV + VC = 920 mm
Integration in half-cell 619 with TT60 • Before LIU-SPS 61955 • After LIU-SPS
HIE-ISOLDE beam transfer lines magnets Preliminary mechanical design MPV New MPLV TT60 VC @ 61955
HIE-ISOLDE beam transfer lines magnets Preliminary magnetic design MPLV MPV New 1.35 T • 2D 1.33 T 1.75 T 1.62 T 1 T 1 T • 3D
HIE-ISOLDE beam transfer lines magnets • Summary • None of the existing SPS bumper fulfills the new specifications for the LIU-SPS scraping scheme • Spare situation of SPS vertical bumpers is not ideal • Strategy: design new magnets compatible as spares for all SPS vertical bumpers • fulfill the needs for the LSS6 scraping scheme • secure the spare situation for the long term • Preliminary study shows realistic magnet design seems achievable • Design must now be optimized (field quality, saturation) and parameters matched to other interfaces, in particular power converters
HIE-ISOLDE beam transfer lines magnets • Part 2: POWER CONVERTERS • G. Le Godec (slides presented by J. Bauche).
Converter Technical proposal • Studies were made for two scenarios: Ref_1 and Ref_2, • Bipolar converters are requested (4 quadrant operation), • Ref_1 is the worst case (RMS value), 11
Converter Technical proposal Converter initial proposal, based on original MPLV design • Modular approach and re-use of existing “bricks”: • S250 family • S500_s = +-240V/+-250A = 2xS250 in a serial configuration, • S250 used for LINAC3/LEIR/TT2/HiRadMat, • AuxPS family • Type I = +-450V/+-450A, • Family used in the PS complex and for the LINAC4/PS-LIU/ELENA/TE-MSC test benches in the future. • The technical proposal could be refined at a later stage, based on the final parameters of the new magnets: the modular approach provides some flexibility… 12