PSFC Seminar: Ziad Melhem
Friday, February 16, 2018 at 3:00pm to 4:00pm
Plasma Science and Fusion Center, NW17-218 175 Albany Street, Cambridge, MA
Title: New advancements in high field superconducting magnet and cryogenic technologies and applications
Recent advancements in developments of superconducting materials and technologies together with cryogenics are enabling a new class of compact high field magnets. The production of high magnetic fields using low temperature superconductors (LTS) has become common place. However, the large magnet sizes and their associated high cooling costs have often precluded the full utilisation of these research capabilities. Recent advances in low temperature superconductors (LTS) and high temperature superconductors (HTS) and Cryofree® technology have opened up a new era in superconducting magnet development for a variety of applications including condensed matter research, materials research, nanotechnology and many other applications.
Beyond conventional wet magnet technology, there is a growing trend to utilise Cryofree® technology. Cryofree® magnets do not require liquid Helium baths and, with the addition of active shielding, both the experimental sample access and siting availability is improved.
Ultra-compact, laboratory sized magnets producing fields up to 22 Tesla are available. This new class of high field magnet is small in size and is suitable for general laboratory installation. The new class of LTS magnets designed to accommodate HTS inserts is enabling higher magnetic field > 25 Tesla.
The enabling technologies required to realise the above practical applications for high field, compact superconducting magnet systems are described together with new trends in using these advancements in other applications.