Massachusetts Institute of Technology

Still River Systems Incorporated

Joel Henry Schultz

Timothy A Antaya

Leslie Bromberg

Alexey L Radovinsky

Joseph V Minervini

Leonard Myatt

Peter H Titus

Bradford A Smith

Alexey L c/o Massachusetts Inst Of Tech Radovinsky

A superconducting coil includes (a) a plurality of windings of a coil comprising high-temperature superconductors and (b) an electrically conductive channel in which the high-temperature superconductors are mounted. The high-temperature superconductors can comprise at least one of the following: BaSrCaCuO(2212), BaSrCaCuO(2223), and YBaCuO(123) superconductor.

Superconducting coil

A NbSn superconducting coil can be formed from a wire including multiple unreacted strands comprising tin in contact with niobium. The strands are wound into a cable, which is then heated to react the tin and niobium to form a cable comprising reacted NbSn strands. The cable comprising the reacted Nb3Sn strands are then mounted in and soldered into an electrically conductive channel to form a reacted cable-in-channel of NbSn strands. The cable-in-channel of reacted Nb3Sn strands are then wound to fabricate a superconducting coil. The NbSn superconducting coil can be used, for example, in a magnet structure for particle acceleration. In one example, the superconducting coil is used in a high-field superconducting synchrocyclotron.

Niobium-tin superconducting coil

A coil system for inductively heating a superconducting magnet in order to provide an internal energy dump by uniformly quenching a high performance superconducting magnet. The quench-inducing system uses AC magnetic fields that require negligible reactive power. The system is especially suited for inducing a relatively uniform quench in dry superconducting magnets.

Inductive quench for magnet protection

A magnet structure for particle acceleration includes at least two coils that include a continuous path of superconducting material [e.g., niobium tin (NbSn) having an A15-type crystal structure] for electric current flow there through. The coils can be mounted in a bobbin, which together with the coils form a cold-mass structure. The coils are cooled to their superconducting temperatures via cryocoolers. Radial-tension members are coupled with the cold-mass structure to keep it centered, such that it remains substantially symmetrical about a central axis and is not pulled out of alignment by magnetic forces acting thereon. A wire can be wrapped around the coils, and a voltage can be applied thereto to quench the coils to prevent their operation of the coils in a partially superconducting condition, which may otherwise cause damage thereto. A magnetic yoke surrounds the cold-mass structure and includes a pair of poles that, in part, define an acceleration chamber there between. The inner surfaces of the poles have tapered profiles that establish a correct weak focusing requirement for ion and that reduce pole diameter by increasing energy gain versus radius. An integral magnetic shield is positioned about the yoke to contain magnetic fields emanating there from and can have a tortuous configuration to contain magnetic fields having a variety of orientations. The magnet structure can be very compact and can produce particularly high magnetic fields.

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Newtonville, MA, United States of America

Joel Henry Schultz