Design and Test Status of the Fast Ramped Superconducting SIS100 Dipole Magnet for FAIR

Fischer, Egbert; Schnizer, Pierre; Mierau, Anna; Wilfert, Stefan; Bleile, A.; Shcherbakov, P.; Schröder, Christian

doi:10.1109/tasc.2010.2091372

Cited by 13 publications

(7 citation statements)

References 11 publications

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“…This suggests that the spectrum of mechanical perturbations may have a larger amplitude for this type of coil shapes. A block coil configuration is suitable for low field magnets, when the iron field is predominant, like for FAIR-SIS100 [5]; see Fig. 8.…”

Section: Alternative Configurationsmentioning

confidence: 99%

Superconducting Magnets for Particle Accelerators

Rossi

Bottura

2012

Rev. Accl. Sci. Tech.

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Superconductivity has been the most influential technology in the field of accelerators in the last 30 years. Since the commissioning of the Tevatron, which demonstrated the use and operability of superconductivity on a large scale, superconducting magnets and rf cavities have been at the heart of all new large accelerators. Superconducting magnets have been the invariable choice for large colliders, as well as cyclotrons and large synchrotrons. In spite of the long history of success, superconductivity remains a difficult technology, requires adequate R&D and suitable preparation, and has a relatively high cost. Hence, it is not surprising that the development has also been marked by a few setbacks.This article is a review of the main superconducting accelerator magnet projects; it highlights the main characteristics and main achievements, and gives a perspective on the development of superconducting magnets for the future generation of very high energy colliders.To be published in Reviews of Accelerator Science and Technology, Vol. 5Geneva, Switzerland CERN-ATS-2013-019February 2013 Superconductivity has been the most influential technology in the field of accelerators in the last 30 years. Since the commissioning of the Tevatron, which demonstrated the use and operability of superconductivity on a large scale, superconducting magnets and rf cavities have been at the heart of all new large accelerators. Superconducting magnets have been the invariable choice for large colliders, as well as cyclotrons and large synchrotrons. In spite of the long history of success, superconductivity remains a difficult technology, requires adequate R&D and suitable preparation, and has a relatively high cost. Hence, it is not surprising that the development has also been marked by a few setbacks. This article is a review of the main superconducting accelerator magnet projects; it highlights the main characteristics and main achievements, and gives a perspective on the development of superconducting magnets for the future generation of very high energy colliders.

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Section: Alternative Configurationsmentioning

confidence: 99%

Superconducting Magnets for Particle Accelerators

Rossi

Bottura

2012

Rev. Accl. Sci. Tech.

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“…The parameters h and e are given in Table I as obtained for the magnet presented above (FoS), and for the prototype magnets; in particular for the straight dipole with a double layer coil (S2LD) [22], and for the curved dipole magnet with a double layer coil (C2LD) [23].…”

Section: A Test Resultsmentioning

confidence: 99%

“…The SIS100 synchrotron requires dipoles with a maximum field of 1.9 T, a length of ≈3 m, a ramp rate of 4 T/s and a repetition rate of 1 Hz, while the NICA dipoles will be operated at ramp rates of ≈1.2 T/s. The changing field creates AC losses, in particular due to the following sources: hysteresis losses in the iron yoke and eddy currents in the magnet ends, induced by the longitudinal magnetic field component B z , and eddy currents in the vacuum chamber [9]. Therefore the magnets have to be cooled reliably and efficiently Manuscript [5]; this is achieved by a forced two-phase helium flow within the Nuclotron-type cable [10].…”

Section: Sis100 Dipolesmentioning

confidence: 99%

“…Therefore the magnets have to be cooled reliably and efficiently Manuscript [5]; this is achieved by a forced two-phase helium flow within the Nuclotron-type cable [10]. The SIS100 dipole has a single layer coil [9], [11]- [14], which is cooled by a helium stream of ≈1 g/s flowing through the inner tube of the cable. The FoSdipole (see Fig.…”

Section: Sis100 Dipolesmentioning

confidence: 99%

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Fast-Ramped Superconducting Magnets for FAIR Production Status and First Test Results

Fischer

Schnizer

Sugita

et al. 2015

IEEE Trans. Appl. Supercond.

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The SIS100 synchrotron for heavy ion research is based on fast-ramped superconducting magnets. These superferric magnets are being designed, built, and tested. The first 3-m-long series dipole (maximum field of 1.9 T; ramp rate of 4 T/s) has been built. We present the test results obtained (quench training, magnetic field, ac loss, and repetition rate) and compare them with the predicted values and the required operation parameters.

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“…They were found to be major heat input for both SIS100 [12] and its planned extension, SIS300 [13]. Magnet design was significantly affected by thermal issues [14]. A proper cooling system will be introduced [15].…”

Section: Introductionmentioning

confidence: 99%

Heat generation by eddy currents in a shell of superconducting bus-bars for SIS100 particle accelerator at FAIR

Trojanowski

Ciszek

Chorowski

2017

Archives of Electrical Engineering

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Superconducting magnets in the SIS100 particle accelerator require the supply of liquid helium and electric current. Both are transported with by-pass lines designed at Wrocław University of Technology. Bus-bars used to transfer an electric current between the sections of the accelerator will be encased in a steel shell. Eddy currents are expected to appear in the shell during fast-ramp operation of magnets. Heat generation, which should be limited in any cryogenic system, will appear in the shell. In this work the amount of heat generated is assessed depending on the geometry of an assembly of the bus-bars and the shell. Numerical and analytical calculations are described. It was found that heat generation in the shell is relatively small when compared to other sources present in the accelerator and its value strongly depends on the geometry of the shell. The distribution of eddy currents and generated heat for different geometrical options are presented. Based on the results of the calculations the optimal design is proposed.

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Design and Test Status of the Fast Ramped Superconducting SIS100 Dipole Magnet for FAIR

Cited by 13 publications

References 11 publications

Superconducting Magnets for Particle Accelerators

Superconducting Magnets for Particle Accelerators

Fast-Ramped Superconducting Magnets for FAIR Production Status and First Test Results

Heat generation by eddy currents in a shell of superconducting bus-bars for SIS100 particle accelerator at FAIR

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