File:Cyclotron with glowing beam.jpg

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Cyclotron_with_glowing_beam.jpg (640 × 436 pixels, file size: 56 KB, MIME type: image/jpeg)

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60-inch cyclotron, circa 1939, showing beam of accelerated ions (perhaps protons or deuterons) escaping the accelerator and ionizing the surrounding air causing a blue glow. (contrast enhanced) This image is a work of the Lawrence Berkeley National Laboratory and as such is a work of the US government and therefore in the public domain.


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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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Date/TimeThumbnailDimensionsUserComment
current21:26, 4 July 2013Thumbnail for version as of 21:26, 4 July 2013640 × 436 (56 KB)PrimeHunter (talk | contribs)Reverted to version as of 15:54, 5 May 2005. No reason for rotation
13:45, 8 August 2012Thumbnail for version as of 13:45, 8 August 2012432 × 640 (63 KB)Rotatebot (talk | contribs)Bot: Image rotated by 90°
15:54, 5 May 2005Thumbnail for version as of 15:54, 5 May 2005640 × 436 (56 KB)Guam~commonswiki (talk | contribs)retrieved from en.wikipedia.org 60-inch cyclotron, circa 1939, showing beam of accelerated ions (perhaps protons or deuterons) escaping the accelerator and ionizing the surrounding air causing a blue glow. (contrast enhanced) This image is a work of the

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