Conveners
Thu-Mo-Or29: Cryogenics & Auxiliary Technologies
- Rob Van Weelderen (CERN)
- Riccardo Musenich (Universita e INFN Genova (IT))
We present design and test results for a thermally-activated persistent-current switch (PCS) applied to a double pancake wound (DP) coil (151-mm ID, 172-mm OD), wound, using the no-insulation (NI) technique with a 120-m long, 76 micron thick, 6-mm wide REBCO tape. For the experiments reported in this paper, the NI DP assembly was immersed in a volume of solid nitrogen (SN2), cooled to...
Currently, how to measure the magnetic field accurately is a difficulty in the study of high magnetic field. This paper proposes a measurement method for pulsed magnetic field based on distributed magnetic field sensors. The method adopts multiple magnetic field sensors based on Rogowski coil to measure the value of the magnetic field. The magnetic field sensor is a single cube structure, of...
HTS dynamos are a class of superconducting flux pump, which have attracted significant recent interest as novel current sources for HTS magnet coils. They employ a series of permanent magnets which mechanically traverse a coated conductor stator, giving rise to a time averaged output emf. Previous work has shown that the maximum achievable output current of an HTS dynamo is determined by the...
The SUPRAPOWER consortium, an EU FP7 funded research project, is developing an innovative 10 MW class superconducting generator (SCG) to provide an important breakthrough in the offshore wind industry. It is a partial SCG with MgB2 wires used in the field coils while conventional copper conductors are used in the armature coils. Due to the requirements of handling, maintenance, reliability of...
Superconducting and cryogenic environments are in use and under development for a large variety of Nanotechnology applications and Quantum technologies. Next generation of nanotechnology applications will be dependent on platforms that can probe and manipulate matter at the nanoscale under magnetic field and/or at cryogenic temperatures. This contribution presents an overview of a new class...
We present a compact, mobile pre-cooling cryogenic system (cooler) developed by Sumitomo Cryogenics as a solution that can significantly reduce helium losses associated with shipping medical MRI magnets globally. In contrast to conventional cold-shipping of MRI magnets, the cooler can enable MRI magnets to be shipped with the cryostat at room temperature, and then pre-cooled either during the...
Cryogenic technology is extensively used at DESY, FERMILAB, ITER, CERN, FAIR and ESS to create and maintain low-temperature conditions for the magnets. In order to operate at high magnetic fields, magnets are cooled with supercritical helium at 4 K (-269°C). They are surrounded by a large cryostat and an actively-cooled thermal shield with a forced flow of helium. Efficient cryogenic...
