Accelerator Optics
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Electron
accelerators use magnets to direct and focus the electron beam (e-beam)
through the accelerator.
Electromagnets (EMs) are commonly used for these e-beam
optics. However, there are
applications where EMs are not suitable. Examples are compact bends and chicanes
where there is not enough space available for the EM optics due to the room
needed to accommodate their coils. STI
has patented designs for compact accelerator optics (e.g., dipoles, quadrupoles,
sextupoles), which are based upon permanent magnets (PM). An important capability is their magnetic
fields are adjustable. Motors attached
to the PM optics can remotely tune the field.
Manual adjustment is also available.
Another noteworthy feature is the ability to easily adjust the
magnetic centerline position independent of the field strength. Centerline adjustment is typically
difficult to do with EM optics once they are locked into position. Our
PM optics eliminate the need for high-current power supplies and cooling
water, and are inherently shorter in length than EMs at the same field
strengths (see PM-based optics
reprint). We delivered the triplet
shown in the upper-right to the Radiological
Research Accelerator Facility (RARAF) at Columbia University. Examples of other PM-based devices can be
found in our Magnetic Devices Brochures. We would be happy to provide a quote for
the most cost-effective PM optic to satisfy your needs. For
more information contact Stephen C. Gottschalk (see Contacting Us). |
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