Permanent Magnets

RadiaBeam Technologies provides a full range of permanent magnet (PM) beam optics, including PM dipoles and final focus PMQs.  Our PMQs are based on both the segmented Halbach design and the hybrid design, which uses iron pole pieces for field-shaping.  Permanent magnet beam optics are ideal in applications where compactness and low power consumption are desired. 

Permanent Magnet Dipoles

Permanent magnet dipoles are often used for in-vacuum beam manipulation in injection and extraction systems or as an economical way to make fixed-field ring magnets (e.g. the Fermilab recycler). At RadiaBeam we have worked on many designs incorporating PMDs. Please contact us for help with your design.

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Custom Permanent Magnet Dipole

Custom Permanent Magnet Quadrupole

RadiaBeam offers individual permanent magnet quadrupoles (PMQs) as well as PMQ-based high field strength final focus systems. Our PMQs are based on both the segmented Halbach design and the hybrid design, which uses iron pole pieces for field-shaping. PMQs magnets are ideal replacements for electromagnets in situations where size is critical or an in-vacuum component is preferred.

Custom Final Focus PMQ

The final focus systems combines 3 or more ultra-high gradient Halbach PMQs to form a tunable lattice. Adjustability is achieved through precision positioning of the individual magnets. Numerous configurations to accommodate a variety of vacuum and interaction point geometries are available. These PMQ systems are ideal for inverse Compton scattering systems and advanced accelerator injection.

Permanent Magnet Quadrupoles

Advanced applications of high-brightness electron beams demand that the beams be focused to extremely small sizes.  Conventional methods for focusing based on electromagnetic quadrupoles do not yield focusing fields that are strong enough to give the short focal lengths needed for these applications, especially in low energy systems afflicted with space-charge effects and excessive energy spread.  RadiaBeam’s PMQ final focus design provides a cost-effective, tunable focusing system for these demanding applications.

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Custom Permanent Magnet Quadrupole
Custom Permanent Magnet Quadrupole Stand

Custom Permanent Magnet Dipole