Towards fast-pulsed superconducting synchrotron magnets

Moritz, G.; Muehle, C.; Anerella, M.; Ghosh, A.; Sampson, W.; Wanderer, P.; Willen, E.; Agapov, N.N.; Khodzhibagiyan, Hamlet; Kovalenko, A. D.; Hassenzahl, W.V.; Wilson, M.N.

doi:10.1109/pac.2001.987472

Cited by 17 publications

(6 citation statements)

References 5 publications

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“…A FAST pulsed magnet is designed in GSI, Darmstadt, in close collaboration with JINR Dubna for the new international accelerator facility, developed at GSI [1]. The magnet concept is based on a cold (4.5 K) iron window frame design with superconducting coils.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Power Losses in a Laminated Dipole Magnet With Superconducting Coils

Kalimov

Fischer

Hess

et al. 2004

IEEE Trans. Appl. Supercond.

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Dynamic processes in a window-frame dipole with superconducting windings and a cold, laminated iron yoke have been investigated experimentally at JINR (Dubna, Russia), and theoretically at GSI (Darmstadt, Germany). The main aim of these investigations was a reduction of energy losses in the yoke during ramping. These losses are produced mainly by energy dissipation due to eddy currents and hysteresis effects in the laminations. Both effects were investigated theoretically. As a result, special end blocks were proposed to reduce eddy current losses. For eddy currents simulation we used a model developed at GSI and St. Petersburg State Polytechnical University (Russia). This model is based on an integro-differential approach to eddy currents in laminated structures and a volume integral method for the magnetization vector in ferromagnetic objects. To test this model a series of experiments were performed at GSI on a normalconducting Heavy Ion Synchrotron dipole magnet. The magnetic field in the aperture of this magnet was controlled with a point coil during the current ramping in the winding. The same transient processes were simulated using software, developed on the basis of the integro-differential method. The theoretical calculations were in reasonable agreement with the measurements.Index Terms-Ion beam applications, magnetic fields, magnets, superconducting accelerator magnets.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Power Losses in a Laminated Dipole Magnet With Superconducting Coils

Kalimov

Fischer

Hess

et al. 2004

IEEE Trans. Appl. Supercond.

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“…The magnets in development for the needs of SIS100 at GSI could be of interest for that application [10]. Indeed, the key technological item for such a synchrotron will be a fast pulsing SC dipole reaching a 4 to 6 Tesla field in a 2 to 3 second ramp [10][11][12][13][14][15][16]. The new process of multi-turn ejection which minimizes beam loss should be used.…”

Section: Psmentioning

confidence: 99%

Plans for the future of proton accelerators at CERN

Garoby¹,

Scandale²

2005

Nuclear Physics B - Proceedings Supplements

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The Large Hadron Collider, presently in construction at CERN, will be filled through a set of high performance proton accelerators providing the high brightness beam needed to reach the foreseen luminosity. Although this difficult project has top priority and uses most of the CERN resources, it is nevertheless time investigating improvements of the proton accelerator complex for physical cases beyond the LHC expectations. The needs of multiple physics communities have to be taken into account, as well as the necessity of consolidating the installations while keeping high reliability. This paper starts from the analysis and proposals made by the "High Intensity Proton" (HIP) working group [1, 2] to improve the performances of the PS and the SPS complex and better match the users requests in a staged scenario at short and medium term, and complement it, addressing the main possibilities beyond that horizon. PLANS FOR THE FUTURE OF PROTON ACCELERATORS AT CERNR. Garoby, W. Scandale, CERN, Geneva, Switzerland AbstractThe Large Hadron Collider, presently in construction at CERN, will be filled through a set of high performance proton accelerators providing the high brightness beam needed to reach the foreseen luminosity. Although this difficult project has top priority and uses most of the CERN resources, it is nevertheless time investigating improvements of the proton accelerator complex for physical cases beyond the LHC expectations. The needs of multiple physics communities have to be taken into account, as well as the necessity of consolidating the installations while keeping high reliability. This paper starts from the analysis and proposals made by the "High Intensity Proton" (HIP) working group [1, 2] to improve the performances of the PS and the SPS complex and better match the users requests in a staged scenario at short and medium term, and complement it, addressing the main possibilities beyond that horizon.

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“…A fast-pulsed superferric quadrupole magnet was designed at GSI, Darmstadt for the new international accelerator facility FAIR (Facility for Antiproton and Ion Research) [1], in close collaboration with JINR, Dubna. The synchrotron SIS100 will be part of this new facility, which will be equipped with superferric dipole [2] and quadrupole magnets.…”

Section: Introductionmentioning

confidence: 99%

Design of a Superferric Quadrupole Magnet With a High Field Gradient

Kalimov

Fischer

Kurnyshov³

et al. 2006

IEEE Trans. Appl. Supercond.

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FAIR, a new international accelerator complex is now being developed by GSI (Darmstadt, Germany). The synchrotron SIS100 is a part of this complex and will be equipped exclusively with fast-cycling superferric magnets. The magnet system of this accelerator includes 168 identical quadrupoles with a maximum gradient of 33.4 T/m in an elliptical useable aperture of 120 mm 65 mm. An important requirement of the quadrupole design is a field gradient uniformity better than 0.06% for field gradient variation range of 3 T/m-3.3 T/m. This goal is achieved by introducing slots in the central part of the magnet poles, creating the effect of artificial saturation. Simultaneously, these slots reduce the eddy currents in the yoke, induced by the current ramp in the magnet coil. This is important because the whole magnet will be operated near 4.2 K, so the power loss in the yoke should be minimized. Additionally, the shape of the quadrupole pole ends was optimized to provide the necessary integral field quality.

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Towards fast-pulsed superconducting synchrotron magnets

Cited by 17 publications

References 5 publications

Investigation of the Power Losses in a Laminated Dipole Magnet With Superconducting Coils

Investigation of the Power Losses in a Laminated Dipole Magnet With Superconducting Coils

Plans for the future of proton accelerators at CERN

Design of a Superferric Quadrupole Magnet With a High Field Gradient

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