electron gun
noun
: an electron-emitting cathode and its surrounding assembly (such as electromagnets in a cathode-ray tube) for directing, controlling, and focusing a beam of electrons
Examples of electron gun in a Sentence
Recent Examples on the Web
Like Lindenblad in his earlier design, Kompfner used a precision electron gun, unavailable at the time of Haeff’s pioneering work, to direct the beam along the central axis right inside the helix.
—
IEEE Spectrum, 25 Aug. 2015
When the set is shut down, the electromagnets deactivate and the remnant beam from the electron gun defaults momentarily to the center of the screen before dying out—but not always in the same spot, as Crippens discovered.
—Rebecca Horne, Discover Magazine, 2 June 2010
The researchers expect that the whole kit, including the electron gun, can be encapsulated on a chip.
—Chris Lee, Ars Technica, 22 July 2019
Varying the output of the electron gun, however, can create a lopsided force deliberately, permitting the craft to be steered.
—The Economist, 21 Sep. 2017
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
IEEE Spectrum, 25 Aug. 2015
When the set is shut down, the electromagnets deactivate and the remnant beam from the electron gun defaults momentarily to the center of the screen before dying out—but not always in the same spot, as Crippens discovered.
—Rebecca Horne, Discover Magazine, 2 June 2010
The researchers expect that the whole kit, including the electron gun, can be encapsulated on a chip.
—Chris Lee, Ars Technica, 22 July 2019
Varying the output of the electron gun, however, can create a lopsided force deliberately, permitting the craft to be steered.
—The Economist, 21 Sep. 2017
Cite this Entry
“Electron gun.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electron%20gun. Accessed 1 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share