The next generation of particle accelerators will be one-of-a-kind facilities, and to meet their luminosity goals they must have guaranteed availability over their several decade lifetimes. The Next Linear Collider (NLC) is one viable option for a 1 TeV electronpositron linear collider, it has an 85% overall availability goal. We previously showed how a traditional Failure Modes and Effects Ana...

Any single permanent or electro magnet will always attract a magnetic fluid. For this reason it is difficult to precisely position and manipulate ferrofluid at a distance from magnets. We develop and experimentally demonstrate optimal (minimum electrical power) 2-dimensional manipulation of a single droplet of ferrofluid by feedback control of 4 external electromagnets. The control algorithm we...

This paper reports a micromachined Geiger counter with integrated permanent magnets that enhance the RF transmission from the discharges initiated by incident beta particles. With the intent of wireless sensing within the ultra wideband (UWB) spectrum, the transmission in the 2.0-2.8 GHz frequency range is investigated. The device consists of a 1x2 cm micromachined glass/Si cavity sandwiched be...

Rare-earth magnets which are the best solutions for PMSM rotors are expensive which makes that other types of motors are used in the applications. The solution of the replacement of these motors with PMSynRM that use low-cost type of ferrite magnets becomes more tempting lately. This paper proposes two different types of low-cost ferrite solutions: first a V permanent magnet assisted synchronou...

Most permanent magnet (PM) loss studies consider only eddy current and neglect hysteresis. In this article, the hysteresis behavior of two NdFeB PM grades with different magnetic properties is assessed when applied in a PMSM. Data from vibrating sample magnetometer measurements modeling are used as base. addition to main phase, samples contained phases reduced coercivity. Such may contribute lo...

We have observed the well-kown quantum Hall effect (QHE) in epitaxial graphene grown on silicon carbide (SiC) by using, for the first time, only commercial NdFeB permanent magnets at low temperature. The relatively large and homogeneous magnetic field generated by the magnets, together with the high quality of the epitaxial graphene films, enables the formation of well-developed quantum Hall st...

Fabrication of bulk nanocomposite materials, which contain a magnetically hard phase and a magnetically soft phase with desired nanoscale morphology and composition distribution has proven to be challenging. Here we demonstrate that SmCo/Fe(Co) hard/soft nanocomposite materials can be produced by distributing the soft magnetic a-Fe(Co) phase particles homogenously in a hard magnetic SmCo phase ...