Information about Wiggler (synchrotron)
An wiggler is an insertion device in a synchrotron. It is a series of magnets designed to deflect ('wiggle') a beam of charged particles (invariably electrons or positrons) inside a storage ring of a synchrotron.
A wiggler has a broader spectrum of radiation than an undulator.
Typically the magnets in a wiggler are arranged in a Halbach array.
The design shown above is usually known as a Halbach wiggler.
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A wiggler has a broader spectrum of radiation than an undulator.
Typically the magnets in a wiggler are arranged in a Halbach array.
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Schematic diagram of a free electron laser
An insertion device is a part of a synchrotron which produces highly-brilliant, forward-directed and quasi-monochromatic synchrotron radiation. The name comes from the fact that these are devices which are inserted into a straight section of a synchrotron or a storage ring.
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This article is concerned with the synchrotron device — a sub-atomic particle accelerator. For applications of the synchrotron radiation produced by cyclic particle accelerators see synchrotron light.
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storage ring consists of a circular ring in which a particle beam or charged particles on a beamline from a particle accelerator can be kept circulating almost indefinitely. Storage of a particular particle is based on the mass of the particle being stored.
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undulator is an insertion device from high-energy physics and usually part of a larger installation, a synchrotron storage ring. It consists of a periodic structure of dipole magnets (see dipole magnet).
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Halbach array is a special arrangement of permanent magnets which augments the magnetic field on one side of the device while cancelling the field to near zero on the other side.
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