undulator

American  

[uhn-juh-layt-er, uhn-dyuh-] / ˈʌn dʒəˌleɪt ər, ˈʌn djə- /

noun

undulators plural

1. Physics. an arrangement of magnets of alternating polarity inserted into the path of an electron beam, so that the alternating magnetic field causes the beam to oscillate or undulate, emitting intense electromagnetic radiation. Undulators are usually part of a synchrotron storage ring and are used to generate brilliant light.

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Other Word Forms

Noun Inflected Forms

• undulators
  plural

Example Sentences

See Examples For:

undulator undulators

But where the polarity of undulator fields alternates over a few centimeters, the laser’s field seesaws along with the wavelength of the light—just 1 micrometer.

From Science Magazine ● Mar. 22, 2023

Within an undulator, small magnets above and below the beam pipe lined up like teeth, with the north poles of neighboring magnets alternating up and down.

From Science Magazine ● Jul. 25, 2021

But Wang and colleagues demonstrated amplification, showing the light’s intensity increases 100-fold in the third undulator, they report this week in Nature.

From Science Magazine ● Jul. 25, 2021

Once he hitched his undulator to a large linear accelerator that sent out electrons at 100 million electron volts.

From Time Magazine Archive

But the undulator is "shrunk" by one of the strange effects connected with Einstein's relativity.

From Time Magazine Archive

The ASU team plans to replace the bulky magnetic undulators with a laser shone directly into the oncoming train of electrons.

From Science Magazine ● Mar. 22, 2023

They hope to send up to 2700 electron bunches through the undulators and watch the laser beam grow stronger and smoother with each pass.

From Science Magazine ● Aug. 27, 2021

In an FEL, physicists fire electrons down a vacuum pipe and through a line devices called undulators.

From Science Magazine ● Jul. 25, 2021

As electrons pass through the undulators, the rippled magnetic field shakes them back and forth, causing them to emit light.

From Science Magazine ● Jul. 25, 2021

Hamburg’s facility also has a larger capacity than its competitors: unlike other XFELs, it has three separate undulators to create simultaneous X-ray beams, with the 27,000 pulses per second distributed among them.

From Nature ● Aug. 28, 2017