Superconducting point contacts have been used for measuring magnetic polarizations, identifying magnetic impurities, electronic structures, and even the vibrational modes of small molecules. Due to intrinsically small energy scale in the subgap structures of the supercurrent determined by the size of the superconducting energy gap, superconductors provide ultrahigh sensitivities for high resolu...

High field superconducting magnets are used in different power applications, such as nuclear magnetic resonance systems, thermonuclear fusion technologies and energy storage. These magnets have to fulfill high quality standards in terms of field uniformity and stability, by keeping construction costs and size as low as possible while respecting superconducting critical state constraints. The su...

In this study, a set of self-consistent coupled-integral equations for the local magnetic flux and current distributions in a finite superconducting hollow cylinder under an axial magnetic field has been directly derived by using the Biot-Savart law within the framework of the critical-state model. The equations were first solved numerically in the three-dimensional space before obtaining the h...

In a large proton storage ring the particles circulate on narrowly defined orbits for many ~ hours, and undergo about 1012 interactions with nonlinear magnetic fields. The nonlinear fields -include significant high multipoles from inevitable errors in the fabrication of superconducting magnets. In a first approximation one neglects collective and dissipative effects, and assumes that magnetic f...

Energy storage is a key issue when integrating large amounts of intermittent and nondispatchable renewable energy sources into electric power systems. To be able to maintain the instantaneous power balance and to compensate for the influence of power fluctuations that might result from renewable sources, flexible capability for power control is needed. Therefore, sufficient energy storage with ...

In the last two years, there has been substantial progress in superconducting accelerator technology both in long term operation at many facilities as well as in high gradients at many laboratories. These rapid advances have made RF superconductivity an enabling technology for a variety of new applications. In high energy physics, low frequency (200 – 400 MHz) cavities are envisioned to acceler...

A calculational approach is described to study beam induced radiation effects in detector and storage ring components at high-energy high-luminosity + colliders. The details of the corresponding physics process simulations used in the MARS code are given. Contributions of electromagnetic showers, synchrotron radiation, hadrons and daughter muons to the background rates in a generic detector for...