The magnetic measurement of solenoids is based on different methods to characterize the field quality and the magnetic axis. Usually, Hall mappers and stretched-wire systems are used for this task. This paper presents an alternative: a fluxmetric method to measure the radial field dependence and the magnetic axis with a single instrument. The solenoidal-field transducer is based on a...
In the framework of the High-Luminosity Large Hadron Collider (HL-LHC) project, 11 T dipole and MQXF quadrupole magnets employing Nb3Sn technology have been tested in short and long test configurations. Nb3Sn magnets are more sensitive than NbTi magnets to a potential degradation of their conductors during production, testing and cycling operation. In the SM18 magnet test...
High-temperature superconductors such as REBa2Cu3O7-x (REBCO) can generate strong magnetic fields that are promising for applications in particle accelerators and compact fusion reactors. Lawrence Berkeley National Laboratory is developing magnet technology-based multi-tape REBCO cable conductors. Traditionally, voltage taps are installed in superconducting magnets. The voltage signals due to...
Fermilab has been developing flexible printed circuit board (flex-PCB) based quench antenna (QA) probes since 2017, and these have seen a variety of improvements and customization for different applications over the years. The flex-QA have proven to be low-noise, low-cost, non-invasive, and highly sensitive sensors for quench characterization in superconducting magnets, with potential to...
ReBCO-based CORC® superconducting cables [1] can enable compact fusion reactors and high-field accelerator magnets. However, additional research is required to develop sensitive and robust quench detection methods. One potential technique utilizes Hall probe arrays in CORC® cable terminations to monitor inter-tape current redistribution [2] as a proxy for quench detection. In short-sample...
To prevent an unintended shutdown of the high-temperature superconducting devices (HTS), the monitoring and diagnosing system to quantitatively estimate the degradation of superconducting properties before the normal transitions occur has been proposed. Only the active power component of the Poynting vector measured around the coil conducting AC transporting current is observed in the system....
