Quench Protection Method of HTS and LTS Hybrid Magnet Systems

Spatial and Temporal Variations of a Screening Current Induced Magnetic Field in a Double-Pancake HTS Insert of an LTS/HTS NMR Magnet Citation

This paper presents experimental and simulation results of a screening current induced magnetic field (SCF) in a high temperature superconductor (HTS) insert that constitutes a low-/high-temperature superconductor (LTS/HTS) NMR magnet. In this experiment, the HTS insert, a stack of 50 double-pancake coils, each wound with Bi2223 tape, was operated at 77 K. A screening current was induced in the...

An 800 MHz all-REBCO Insert for the 1.3-GHz LTS/HTS NMR Magnet Program – A Progress Report

A critical component of the 1.3-GHz NMR Magnet (1.3G) program, currently ongoing at the Francis Bitter Magnet Laboratory, Plasma Science and Fusion Center, MIT and now approaching its final stage, is the all high-temperature superconductor (HTS) 800-MHz insert (H800). The insert consists of three nested DP coils fabricated with 6-mm wide REBCO conductor. Coil 1, the innermost coil of H800 has a...

The Nijmegen Hybrid Magnet Systems

Stability and Quench Protection of High-Temperature Superconductors

In the design and operation of a superconducting magnet, stability and protection are two key issues that determine the magnet's reliability and safe operation. Although the high-temperature superconductor (HTS) is considered much more stable than the low-temperature superconductor (LTS), it is susceptible to damage caused primarily by three events that can occur in large-scale "real" devices: ...

HTS current leads for the LHC magnet powering system

Among the different applications of the emerging High Temperature Superconducting (HTS) technology, current leads represent a key development component. In this field the state of maturity of the conductor is such as to satisfy both a wide range of design requirements and those of economic viability. The LHC superconducting magnets will be powered through HTS current leads transferring in total...