Charging magnet for the floating coil of LDX

Zhukovsky, A.; Schultz, J.H.; Smith, B.A.; Radovinsky, A.; Garnier, D.; Filatov, O.; Beljakov, V.; Егоров, С. А.; Kuchinsky, V.G.; Malkov, A.; Bondarchouk, E.; Korsunsky, V.E.; Sytnikov, V.E.

doi:10.1109/77.920214

Cited by 11 publications

(2 citation statements)

References 3 publications

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“…Details of the C-coil design are presented in [1] and coupled operation of the C-coil and F-coil is presented in [2], [3]. The C-coil is a 1.3 m inner diameter, 0.75 m tall, layer-wound superconducting coil containing 48 layers and 8388 turns of NbTi superconductor cable.…”

Section: Quench Detection For the Levitated Dipole Experiments (Ldx) Cmentioning

confidence: 99%

Quench Detection for the Levitated Dipole Experiment (LDX) Charging Coil

Michael

Garnier²,

Radovinsky

et al. 2007

IEEE Trans. Appl. Supercond.

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A NbTi charging coil (C-coil) for the Levitated Dipole Experiment (LDX) was manufactured by the Efremov Institute for the LDX team. The C-coil is used to inductively charge and discharge the persistent-mode, Nb 3 Sn floating coil (F-coil) at the start and end of each series of plasma runs in the LDX. The intentional change of F-coil state has significant impact on the inductive voltage distribution within the C-coil during each charge/discharge cycle. Various techniques have been developed to facilitate quench detection in inductively coupled coils, the success of which depends on particularities of the application. This paper summarizes the evolution of the quench detection system applied to the LDX C-coil.

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Section: Quench Detection For the Levitated Dipole Experiments (Ldx) Cmentioning

confidence: 99%

Quench Detection for the Levitated Dipole Experiment (LDX) Charging Coil

Michael

Garnier²,

Radovinsky

et al. 2007

IEEE Trans. Appl. Supercond.

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“…The mechanical launcher brings the F-coil to the center of the vacuum chamber and back to the CS. An overview of the experiment and the magnet system [2], details of magnets including F-coil [3][4][5], C-coil [6], and L-coil [7] can be found in previous publications.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance of the LDX Floating Coil

Zhukovsky¹,

Garnier²,

Radovinsky³

2006

AIP Conference Proceedings

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The Levitated Dipole Experiment (LDX) is an innovative facility to study plasma confinement in a dipole magnetic field, created by a superconducting solenoid (floating coil), which is magnetically levitated in the center of a 5 m diameter by 3 m tall vacuum chamber. The floating coil (F-coil) consists of a Nb 3 Sn magnet installed inside a strong vessel filled with high-pressure helium gas at room temperature. It is surrounded by a fiberglass-lead composite radiation shield and by a toroidal vacuum shell. The cryostat design provides the ability to operate the magnet for several hours of warming while suspended in the middle of the vacuum chamber without electric and cryogenic connections to the coil. For this reason the magnet is charged/discharged inductively in a lower part of the vacuum chamber. The retractable cryogenic transfer lines serve to cool down the magnet to 4.5 K before it is lifted to the operating position. The F-coil can be recooled multiple times while maintaining its field and current. This paper describes the thermal performance of the F-coil.

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