60 likes | 166 Views
Status of the AC Dipole Studies. Ryoichi Miyamoto (UT Austin) LARP Meeting at FNAL 9/12/2007. LHC AC dipoles will be the Tevatron style. RHIC AC dipole system: air core magnet + custom made amplifier Tevatron AC dipole system: already installed (iron core) pinger + audio amplifier.
E N D
Status of the AC Dipole Studies Ryoichi Miyamoto (UT Austin) LARP Meeting at FNAL 9/12/2007
LHC AC dipoles will be the Tevatron style. • RHIC AC dipole system: • air core magnet + custom made amplifier • Tevatron AC dipole system: • already installed (iron core) pinger + audio amplifier
Requirement to the Power Supplyto Produce 4σOscillation @ the Collision Energy Results of the Power Supply Tests
Potential Issues Schematic Diagram ofthe Dual Amplifier System • Burst length? • An audio amplifiers doesn’t like • resonant circuits? • Transformer? NP NS + Power to produce 200 A − + − NP Lossy Core! ZL ~ 10 Ω
An AC dipole has an influence like a thin quad. Measured Phase Space @ B0 IP δ= νd - ν Beam motion is still given by true β δ = -0.01 δ = -0.02 Change of βis the same as a thin quad:
Vertical βforNewProton and Pbar Helicies Proton Helix βv,B0 = 35.9 cm βv,D0 = 36.2 cm Pbar Helix βv,B0 = 27.9 cm βv,D0 = 30.8 cm