SmCo5 based magnets with smaller size and larger maximum energy product have been long desired in various fields such as renewable energy technology, electronic industry and aerospace science. However, conventional relatively rough synthetic strategies will lead to either diminished magnetic properties or irregular morphology, which hindered their wide applications. In this article, we present ...

In order to maximize the achievable luminosity of HERA the final focusing triplets of the lepton beam are installed close to the interaction point (IP). The dipole component of the magnets produces the necessary separation angle between the lepton and the proton beam. The synchrotron radiation generated in the magnets has to be passed through the detector beam pipe with extremely small losses f...

This paper presents a spherical motor driven by electro-magnets that can rotate omnidirectionally with some degrees of rotation angle error independent of rotation direction. The spherical motor is composed of a spherical rotor, a semi-spherical stator, a control PC, a control circuit, and a DC power supply. The rotor has 92 neodymium magnets. On the other hand, 84 electro-magnets are arranged ...

Introduction The Advanced Photon Source (APS), as well as other third-generation synchrotron light sources, uses permanent magnets in the insertion devices to produce x-rays for scientific research [1,2]. When placed in a high-energy storage ring, these permanent magnets are subjected to irradiation from synchrotron radiation, high-energy bremsstrahlung, and bremsstrahlung-produced neutrons. Pr...

Context. The free core nutation (FCN) can be observed by its associated resonance effects on the forced nutations of the Earth’s figure axis, as observed by very long baseline interferometry (VLBI), or on the diurnal tidal waves, retrieved from the time-varying surface gravity recorded by superconducting gravimeters (SG). Aims. In this paper, we study the sensitivity of both techniques to the F...

BACKGROUND The superconducting cyclotron is of great importance to treat cancer parts of the body. To reduce the operation costs, a superconducting magnet system for the 250 MeV proton cyclotron was designed to confirm the feasibility of the superconducting cyclotron. FINDINGS The superconducting magnet system consists of a pair of split coils, the cryostat and a pair of binary high temperatu...

Single-molecule magnets are a type of coordination compound that can retain magnetic information at low temperatures. Single-molecule magnets based on lanthanides have accounted for many important advances, including systems with very large energy barriers to reversal of the magnetization, and a di-terbium complex that displays magnetic hysteresis up to 14 K and shows strong coercivity. Ligand ...

A method of expanding the 1700 MeV, 100 mA proton beam of the APT linear accelerator onto the 19 by 190 cm target has been devised using eight ferrite dipole magnets. These magnets deflect the beam in the x and y-plane, and thereby paint the target area uniformly with a rastered pattern. Insulated Gate Bipolar Transistor (IGBT)-based power modulators drive the raster magnets with triangular cur...

Children imitating adults often appear to indulge in harmless fun, however at times these activities have more serious implications. The recent fashion of body piercing among adults has encouraged children to have similar procedures or imitate them by applying small magnets to sustain the jewellery used in piercing in position. This paper describes a series of 24 cases presented to the Sheffiel...

In the LHC, the superconducting corrector magnets will be powered in series of up to 154 magnets. For protection in case of a quench, each magnet has been equipped with a parallel resistor as a bypass for the current. To validate and optimize the parallel resistor value, a test arrangement has been set up which allows quenching a single magnet as if it were connected in a large series of magnet...