The US demonstration poloidal coil

Steeves, M.M.; Painter, T.A.; Takayasu, M.; Randall, R.; Tracey, Jennifer; Hwang, In-Kyeong; Hoenig, M.

doi:10.1109/20.133694

Cited by 26 publications

(7 citation statements)

References 2 publications

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“…This interaction is observed in dedicated experiments as well as in operating magnets. Examples of coupling are the helium induced flow that affects stability and quench propagation in force-flow cooled cables [1], [2] and the limitation found on the quench current during ramps in multi-strand cables that is thought to be caused by premature current sharing due to large current imbalances among strands [3], [4]. Not only magnet quench, but also field quality in accelerator magnets is influenced by the current distribution in the superconducting cables through interaction with the filament magnetization [5], [6].…”

Section: Introductionmentioning

confidence: 99%

A general model for thermal, hydraulic and electric analysis of superconducting cables

Rosso²,

2000

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In this paper we describe a generic, multi-component and multi-channel model for the analysis of superconducting cables. The aim of the model is to treat in a general and consistent manner simultaneous thermal, electric and hydraulic transients in cables. The model is devised for most general situations, but reduces in limiting cases to most common approximations without loss of efficiency. We discuss here the governing equations, and we write them in a matrix form that is well adapted to numerical treatment. We finally demonstrate the model capability by comparison with published experimental data on current distribution in a two-strand cable.

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Section: Introductionmentioning

confidence: 99%

A general model for thermal, hydraulic and electric analysis of superconducting cables

Rosso²,

2000

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“…Cowound sensors were used first on the US-DPC coil, where an insulated wire was wound along an outside edge of the conduit [37]. Two more orders of magnitude of noise rejection may be achieved by placing the voltage sensor inside the conduit, in the part of the cable best calculated to reject pulsed field voltages.…”

Section: A Advanced Voltage Sensorsmentioning

confidence: 99%

Protection of superconducting magnets

Schultz

2002

IEEE Trans. Appl. Supercond.

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The protection of superconducting magnets can be narrowly considered as the problem of rapidly detecting an irreversible loss of superconductivity (quench) and converting the magnetic stored energy to thermal energy (dump) without permanent damage (protection). It can also be broadly considered as a method for avoiding all structural and electrical failure mechanisms through design, fabrication, and operation of a magnet. Energy dump and quench detection methods are reviewed. General magnet failure is surveyed historically.

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“…The name was chosen because of the similarity of the curve to that of the shell of the mollusk. where E and I are as usual and MR is the recovery bending moment computed from (2). Accordingly, by subtraction of the linearly distributed recovery stresses from stresses generated by the applied moment (2), the residual stress distribution is obtained, Fig.…”

Section: I1 Principlesmentioning

confidence: 99%

The "nautilus": A method of winding disc coils

et al. 1996

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A b s t r a c t -T h eso called nautilus is a winding form in the shape of a double helical spiral onto which a stiff conductor is wound. The conductor is thus bent to a radius smaller than the desired local curvature. When the conductor is allowed to relax from the nautilus form, the required radius of curvature is achieved everywhere. The stiffness in the axial direction is small and compression of the wound coil to a disc is easy. The coil is tightened to a compact disc by pulling the outer tails.

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The US demonstration poloidal coil

Cited by 26 publications

References 2 publications

A general model for thermal, hydraulic and electric analysis of superconducting cables

A general model for thermal, hydraulic and electric analysis of superconducting cables

Protection of superconducting magnets

The "nautilus": A method of winding disc coils

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