Statistical analysis for HTS coil considering inhomogeneous Icdistribution of HTS tape

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...

Investigations of HTS Twisted Stacked-Tape Conductor

Superior Imaging with HTS RF Coil

For the past 30 years, a major focus for new MRI technology and products has been in the development of higher field strength magnets. The rational for this is the higher the field strength, the better the Signal-to-Noise (SNR) of the MR image. This trend comes to an end as the field strength reaches 3Telsa (T), the highest field permitted for clinical use by FDA, CE and other regulatory agenci...

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...