For low-field NMR, NdFeB permanent magnet arrangements are proposed to provide the static polarizing magnetic field. Especially a parallel and a circular arrangement of the permanent magnets, iron yokes and small shim magnets were tested and improved by COMSOL. The intent was to guide the design and the construction of NMR magnets by calculating the magnetic field strength and the associated fi...

Center With the availability of high energy accelerators the need for powerful experimental, beam transport and special magnets is steadily increasing. Experimental high field large volume watercooled or conventional magnets would have power requirements which would be economically unsound. Superconducting magnets have reached a stage where they can be incorporated in connection with high energ...

Many robotics systems rely on permanent magnets, from Lorentz force actuators to magnetic imaging devices. However, permanent magnets are often expensive and there is little opportunity for customization. Machining unmagnetized magnets and then magnetizing them in a lab setting reduces costs and allows researchers to experiment with different geometries and magnetic field parameters. In the pas...

A total of 77 magnets form the magnetic lattice of the bERLinPro energy recovery linac prototype: 1+8+8 dipole magnets of three different types, 12+40 quadrupole magnets of two different types and 8 sextupole magnets have been produced by BINP. After the design phase, magnets production started in 2015, measurements and delivery took place in 2016, first assembly stage was finished in 03/2017. ...

The PEP main ring magnet system consists of 192 bending magnets, 216 quadrupoles, 206 sextupoles and numerous other correction elements. The main ring bend magnets are laminated “C” frame dipoles having a very uniform flat field meeting a new criterion of symmetry called the residual asymmetry factor (RAF5 10m5). The main ring quadrupoles consist of 216 laminated magnets of three differing leng...

The relaxation of the magnetization is calculated for isotropic and anisotropic magnets. For NdFeB magnets, the dependence of Sv on texture, above room temperature, is roughly consistent with the model, while the NdDyFeB magnets show no dependence upon texture.

Over the last decade magnets have been used in orthodontic and dentofacial orthopaedics and attempts have been made to evaluate the biological implications of magnets and magnetic fields during clinical application. This review aims to indicate the advantages and disadvantages of magnets in orthodontics and dentofacial orthopaedics over traditional techniques, and update related clinical experi...

Spherical neodymium-iron-boron magnets are permanent magnets that can be assembled into a variety of structures owing to their high magnetic strength. A one-dimensional chain of these magnets responds to mechanical loadings in a manner reminiscent of an elastic rod. We investigate the macroscopic mechanical properties of assemblies of ferromagnetic spheres by considering chains, rings and chira...

Most safety cases for the deep geological disposal of radioactive waste are reliant on the swelling of bentonite in the engineered barrier system as it saturates with groundwater. Assurance of safety therefore requires effective monitoring of bentonite saturation. The timeand fluid-dependent corrosion of synthetic magnets embedded in bentonite is demonstrated here to provide a novel and passive...

BACKGROUND Magnetic fields may interfere with the function of cardiac pacemakers and implantable cardioverter-defibrillators (ICDs). Neodymium-iron-boron (NdFeB) magnets, which are small in size but produce strong magnetic fields, have become widely available in recent years. Therefore, NdFeB magnets may be associated with an emerging risk of device interference. OBJECTIVE We conducted a clin...