Homogeneous Current Distribution in Multi-laminated HTS Tape Conductor for Pancake Coil of SMES

Investigations of HTS Twisted Stacked-Tape Conductor

Industrial Cu-Ni alloys for HTS coated conductor tape

Copper rich Cu-Ni alloys have been textured with the RABiTS method in order to get non-magnetic and cost efficient substrates for coated conductor wires. The study is focused on two industrial compositions: Cu55Ni45 (Constantan) and Cu70Ni30. Studies on surface roughness have been done. The effects of annealing conditions (temperature and atmosphere) on the grain boundaries deepness were analyz...

HTS tape RF coil for low field MRI

M. C. Cheng, K. H. Lee, K. C. Chan, K. K. Wong, E. S. Yang HKU Jockey Club MRI Engineering Center, Hong Kong, Hong Kong, China, People's Republic of Abstract A 5-inch RF receiving coil for 0.21T MRI system was developed using multifilament Bi-2223 High Temperature Superconducting (HTS) tape. The coil was designed to enclose the imaging sample so as to enhance the filling factor and field-of-vie...

A new method of fabricating HTS tape coil

High-Temperature Superconducting (HTS) materials can introduce substantial improvement in signal-to-noise ratio (SNR) of images for small-size sample or low-field MRI system (<1T) [1]. Expensive HTS thin film is typically used for making receiver surface coils for substantial SNR improvements [2]. A 5-inch HTS tape coil using silver-alloy sheathed Bi-2223 tape was first developed [3], which all...

Design and preliminary tests of a twin coil HTS SMES for pulse power operation

The design of a twin coil 2 × 200 kJ–1 MW pulse power high temperature superconductor (HTS) superconducting magnetic energy storage (SMES) demonstrator is presented. Its aim is to test at small scale various possibilities of electromagnetic launcher powering. The foreseen operation modes include high voltage discharge in power capacitors, sequential discharges of identical energies from two cou...