Field enhancement of a 12.5-T magnet using holmium poles

  title={Field enhancement of a 12.5-T magnet using holmium poles},
  author={R. W. Hoard and S. C. Mance and R. L. Leber and E. N. C. Dalder and M. R. Chaplin and Kailey N. Blair and Donald H. Nelson and David A. Van Dyke},
  journal={IEEE Transactions on Magnetics},
Unlike conventional ferromagnetic materials such as iron and Supermendur, which produce saturation magnetization fields of approximately 2 T, several of the rare-earth elements (holmium, terbium, erbium, gadolinium, and dysprosium) yield saturated fields of nearly 4 T. This property makes these rare-earth metals particularly attractive as flux concentrators for use in superconducting magnets. This report concerns the use of holmium inserts to enhance the peak useful field of the nominally 12.5… 

A review of high magnetic moment thin films for microscale and nanotechnology applications

The creation of large magnetic fields is a necessary component in many technologies, ranging from magnetic resonance imaging, electric motors and generators, and magnetic hard disk drives in

The Characterization of Nb3Sn Superconductors for Use in Magnets of 19 T and Greater

Increased resolution of NMR spectrometry will require the use of very high field Nb3Sn superconducting magnets. Here we report the results of our investigation into mechanical and temperature effects

Influence of strain and polycrystalline ordering on magnetic properties of high moment rare earth metals and alloys

Despite being the most suitable candidates for solenoid pole pieces in state-of-the-art superconductor-based electromagnets, the intrinsic magnetic properties of heavy rare earth metals and their

Compact Rare-Earth Superconducting Cyclotron

The use of superconductivity is well-known as a method to increase the average field of a cyclotron and thereby to allow a substantial reduction of its size and mass. We present a compact high-field

Magnetic suspension and balance system advanced study

An improved compact design for a superconducting magnetic suspension and balance system for an 8 ft. x 8 ft. transonic wind tunnel is developed. The original design of an MSBS in NASA Cr-3802

Applications of the Rare Earths

This chapter gives an overview of the most important applications of the rare earth elements. The number applications discussed is large, but not exhaustive. Among those treated are catalysts, metal

Gain of photon-axion conversion in paramagnetics

The possibility of realization of a photon-axion and axion-photon conversion processes in transparent dielectric media within the visible frequency region is analyzed. Materials contain paramagnetic

Magnetic suspension and balance system advanced study, 1989 design

The objectives are to experimentally confirm several advanced design concepts on the Magnetic Suspension and Balance Systems (MSBS). The advanced design concepts were identified as potential

First Principle Surface Analysis of YF3 and Isostructural HoF3

The trifluorides of the two high field strength elements yttrium and holmium are studied by periodic density functional theory. As a lanthanide, holmium also belongs to the group of rare earth



Field Enhancement by Magnetic Flux Concentration

  • Cryogenics

Field Enhancement by Magnetic Flux Concentration," Cryogenics

  • "Effect of Bronze on the Compression of Nb3Sn in Multifilamentary Conductors," Cryogenics,
  • 1983

Some Useful Information for The Design of Iron Magnets," National Magnet Laboratory Report AFOSR-1526

  • 1962

Magnetic Measurements of a Superconducting Magnet With Holmium Flux Concentrator

    JASON -A Code For Solving General Electrostatic Problems -User's Guide

      Some Useful Information for The Design of Iron Magnets

        Magnetic Measurements of a Superconducting Magnet With Holmium Flux Concentrator," Lawrence Berkeley Laboratory Report

        • Report UCIO-17814,
        • 1978