INDUSTRY COMPONENT

Magnetic Pole Pieces

Magnetic pole pieces are precision-engineered ferromagnetic components that shape and concentrate magnetic fields in bending magnets for particle accelerators and beam transport systems.

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Component Specifications

Definition
Magnetic pole pieces are critical components in bending magnets used in particle accelerators, synchrotrons, and beamlines. These precisely machined ferromagnetic elements define the magnetic field geometry, ensuring uniform field distribution and precise beam deflection. They work in conjunction with electromagnet coils to create controlled magnetic fields that steer charged particles along predetermined paths. The pole pieces' geometry (typically hyperbolic or cylindrical surfaces) determines the field quality, while their material properties affect saturation characteristics and hysteresis losses.
Working Principle
Magnetic pole pieces operate on electromagnetic principles. When current flows through surrounding coils, it generates a magnetic field that is concentrated and shaped by the high-permeability pole pieces. The pole faces create uniform magnetic flux density across the gap, with the field strength proportional to the magnetomotive force and inversely proportional to the gap distance. The precise contouring of pole surfaces ensures field homogeneity, minimizing beam aberrations and enabling accurate particle trajectory control.
Materials
High-permeability electrical steel (M19, M36 grades), Vanadium Permendur (49% Co, 49% Fe, 2% V), Silicon steel laminations (0.35-0.65mm thickness), Pure iron (Armco grade), Nickel-iron alloys (Mu-metal for shielding applications)
Technical Parameters
  • Coercivity <10 A/m
  • Surface Flatness <10 μm over 100mm
  • Surface Roughness Ra < 0.8 μm
  • Residual Induction <0.1 Tesla
  • Dimensional Tolerance ±0.05 mm
  • Magnetic Permeability >5000 μr
  • Operating Temperature -196°C to +150°C
  • Saturation Flux Density 1.8-2.3 Tesla
Standards
ISO 19833, ISO 19834, DIN 17405, IEC 60404-8-6

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Magnetic Pole Pieces.

magnetic pole pieces bending magnet components accelerator magnets beam steering ferromagnetic poles synchrotron components particle accelerator parts electromagnetic pole faces Magnetic Pole Pieces in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Bending Magnet

A magnetic component that deflects and controls the path of charged particle beams in a linear accelerator.

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Engineering Analysis

Risks & Mitigation
  • Magnetic saturation at high fields
  • Mechanical deformation under magnetic forces
  • Corrosion in vacuum environments
  • Thermal expansion mismatches
  • Residual magnetism affecting field quality
FMEA Triads
Trigger: Material impurities or improper heat treatment
Failure: Reduced permeability leading to field inhomogeneity
Mitigation: Implement material certification (MTR), perform permeability testing, use vacuum annealing processes
Trigger: Inadequate surface finish or geometric errors
Failure: Field distortions causing beam instabilities
Mitigation: Apply precision grinding/polishing, implement CMM verification, use optical profilometry for surface analysis
Trigger: Improper assembly or alignment
Failure: Asymmetric field distribution and beam steering errors
Mitigation: Use laser alignment systems, implement shimming procedures, perform magnetic field mapping after assembly

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 2768-mK, magnetic properties within ±2% of specification, surface finish Ra < 0.8 μm
Test Method
Hall probe mapping for field homogeneity, permeameter testing for B-H curves, CMM for dimensional verification, eddy current testing for material defects

Buyer Feedback

★★★★☆ 4.6 / 5.0 (9 reviews)

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Magnetic Pole Pieces arrived with full certification."

"Great transparency on the Magnetic Pole Pieces components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Magnetic Pole Pieces we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

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Frequently Asked Questions

What is the primary function of magnetic pole pieces in bending magnets?

Magnetic pole pieces shape and concentrate magnetic fields to create uniform flux density across the magnet gap, enabling precise deflection of charged particle beams with minimal aberrations.

Why are high-permeability materials essential for pole pieces?

High-permeability materials minimize magnetic reluctance, allowing efficient field concentration with lower magnetomotive force, reducing power consumption and heat generation while improving field homogeneity.

How do pole piece geometry affect beam quality?

Precisely contoured pole surfaces (hyperbolic, cylindrical) create optimized field distributions that minimize sextupole and higher-order multipole components, reducing beam emittance growth and trajectory errors.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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