Paper |
Title |
Page |
MOPJE043 |
Design and Optimization of Electrostatic Deflectors for ELENA |
382 |
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- D. Barna
University of Tokyo, Tokyo, Japan
- W. Bartmann, M.A. Fraser, R. Ostojić
CERN, Geneva, Switzerland
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The ELENA ring will decelerate the antiprotons ejected from the Antiproton Decelerator (AD) at 5.3 MeV down to 100 keV kinetic energy. The slow antiprotons will be delivered to experiments using electrostatic beamlines, consisting of quadrupoles, correctors and deflectors. An extensive simulation study was carried out to find solutions to minimize the aberrations of the deflectors. These solutions will be presented together with the actual design of these devices.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE043
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MOPJE044 |
Beam Dynamics Studies of the ELENA Electrostatic Transfer Lines |
385 |
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- M.A. Fraser, W. Bartmann, R. Ostojić
CERN, Geneva, Switzerland
- D. Barna
University of Tokyo, Tokyo, Japan
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The low-energy ELENA ring at the Antiproton Decelerator (AD) facility at CERN will lower the kinetic energy of antiproton beams from 5.3 MeV to 100 keV, significantly increasing the antiproton trapping efficiency at the experiments. The antiprotons from ELENA will be distributed to two experimental areas housing several different experiments through a system of electrostatic transfer lines totalling 90 m in length. A significant optimisation of the electrostatic optical elements (deflectors, quadrupoles, and correctors) has been carried out to improve the beam quality delivered to the experiments and facilitate installation of the beam lines into the AD hall. A general overview of the beam optics is presented, including end-to-end particle tracking and error studies from the extraction point in the ELENA ring to the experiments.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE044
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THPF089 |
Beam Transfer to the FCC-hh Collider from a 3.3 TeV Booster in the LHC Tunnel |
3901 |
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- W. Bartmann, M.J. Barnes, M.A. Fraser, B. Goddard, W. Herr, J. Holma, V. Kain, T. Kramer, M. Meddahi, A. Milanese, R. Ostojić, L.S. Stoel, J.A. Uythoven, F.M. Velotti
CERN, Geneva, Switzerland
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Transfer of the high brightness 3.3 TeV proton beams from the High Energy Booster (HEB) to the 100 TeV centre-of-mass proton collider in a new tunnel of 80–100 km circumference will be a major challenge. The extremely high stored beam energy means that machine protection considerations will constrain the functional design of the transfer, for instance in the amount of beam transferred, the kicker rise and fall times and hence the collider filling pattern. In addition the transfer lines may need dedicated insertions for passive protection devices. The requirements and constraints are described, and a first concept for the 3.3 TeV beam transfer between the machines is outlined. The resulting implications on the parameters and design of the various kicker systems are explored, in the context of the available technology. The general features of the transfer lines between the machines are described, with the expected constraints on the collider layout and insertion lengths.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-THPF089
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