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.

Additional recommended knowledge

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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.

The design shown above is usually known as a Halbach wiggler.