Progress in the Design of a Fast-Cycling Cos-style Dipole based on High Current Hollow Superconducting Cable

Khodzhibagiyan, Hamlet; Akishin, Pavel; Alfeev, Alexander; Bartenev, V.D.; Butenko, Andrey; Fischer, Egbert; Kovalenko, A. D.; Kuznetsov, G.; Mikhaylov, V. A.; Nikitaev, P.I.

doi:10.1088/1742-6596/43/1/179

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…The superconducting busbar used for the transfer of the electrical current and simultaneously in the design of superconducting magnets is based on a hollow cable cooled with a forced two-phase helium flow [6][7][8]. The cable type was developed as an optimal solution preventing damage of the coils by fast-pulsing loads over the lifetime taking into account the complex fine structure of the cable and coil designs as well as its sensitive influence on the field quality, AC loss generation and quench protection [9].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Strains in Thermal Compensation Loop of Superconducting NbTi Cable during Bending and Cyclic Operation

Iluk¹

2021

Materials

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In the paper, the thermal compensation loops on a composite, superconducting NbTi cable were investigated. This type of cable is used in the superconducting, fast ramping magnets of the SIS100 synchrotron, part of the Facility for Antiproton and Ion Research (FAIR) under construction in Darmstadt, Germany. The influence of space restrictions and electromagnetic cross-talk on the design of the thermal compensation loop was discussed. Plastic deformation of cable components during bending was analyzed by numerical simulations and experiments. A three-dimensional numerical model of the cable was prepared with individual superconducting wires in contact with a central cooling pipe. The bending of a straight cable into a compensation loop shape was simulated, followed by cyclic operation of the cable during thermal cycles. The maximum strains in the superconducting strands and cooling tube were analyzed and discussed.

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Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Strains in Thermal Compensation Loop of Superconducting NbTi Cable during Bending and Cyclic Operation

Iluk¹

2021

Materials

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“…Compared to a coil design based on the Rutherford cable or on any version of cable in conduit conductor (CICC) the highest operation intensity can be reached using superconducting cables of the Nuclotron-Type (NTC) [1,2]. In case of moderate mechanical loads but high heat pulses a special NTC can be used [3,4] combing the large steady state heat removal with direct cooling of the sc strands. The first synchrotron utilizing FCSM for heavy ion research was the Nuclotron commissioned at the JINR Dubna in 1993.…”

Section: Introductionmentioning

confidence: 99%

Critical mechanical structure of superconducting high current coils for fast ramped accelerator magnets with high repetition rates in long term operation

Fischer

Schnizer

Weiss

et al. 2010

J. Phys.: Conf. Ser.

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Critical mechanical structure of superconducting high current coils for fast ramped accelerator magnets with high repetition rates in long term operation Abstract. The heavy ion synchrotron SIS100 is the core component of the Facility for Antiproton and Ion Research (FAIR) currently under construction at GSI in Darmstadt. It is rapidly cycled with a ramp rate of 4 T/s up to 2 T maximum field and a repetition frequency of 1 Hz. The superconducting coils of the Nuclotron-type magnets utilise a hollow cable cooled with a forced two phase helium flow. These coils must operate reliably over a period of at least 20 years and thus survive 2 · 10 8 load cycles. Intensive R&D is necessary to find the optimal solution preventing any possible damage of the coils by the fast pulsing loads over the life time taking into account the complex fine structure of the cable and coil designs as well as its sensitive influence on the field quality, AC loss generation and quench protection. We used FEM codes to analyse critical aspects of various design options and had manufactured coils for detailed mechanical tests. These tests on samples extracted from the coil are: thermal expansion measurements in all three directions on the cable package itself and its composite elements, compression tests and investigation of the Inter Laminar Shear Stress (ILSS). The stress strain behaviour of the cable package was measured along the transversal direction; the most important one to sustain the cycling load by Lorentz forces. A second sample was fatigue tested. Successful integral operation test results for the coil mechanics have been obtained within our first experimental runs on the prototype dipole magnets already started at GSI in the end of 2008.

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New Design for the SIS100/300 Magnet Cooling

Khodzhibagiyan

Fischer

Kovalenko

2006

IEEE Trans. Appl. Supercond.

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Progress in the Design of a Fast-Cycling Cos-style Dipole based on High Current Hollow Superconducting Cable

Cited by 4 publications

References 5 publications

Investigation of Mechanical Strains in Thermal Compensation Loop of Superconducting NbTi Cable during Bending and Cyclic Operation

Investigation of Mechanical Strains in Thermal Compensation Loop of Superconducting NbTi Cable during Bending and Cyclic Operation

Critical mechanical structure of superconducting high current coils for fast ramped accelerator magnets with high repetition rates in long term operation

New Design for the SIS100/300 Magnet Cooling

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