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File:Horizontal cyclotron with glowing beam.jpg

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

Summary edit

Description

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 Berkely National Laboratory and as such is a work of the US government and therefore in the public domain.

Source

Lawrence Berkely National Laboratory

Date

1939

Author

Lawrence Berkely National Laboratory

Rationale

No free licensed or public domain alternatives known to exist to show 60-inch cyclotron, circa 1939, with 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 Berkely National Laboratory and as such is a work of the US government and therefore likely in the public domain.

Permission

Fairuse

Licensing edit

Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.

File history

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Date/TimeThumbnailDimensionsUserComment
current23:25, 29 May 2013Thumbnail for version as of 23:25, 29 May 2013640 × 436 (56 KB)Marshallsumter (discuss | contribs)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 Berkely National Labo...

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