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Public Domain Picture: 395 027 002

Courtesy: US Department of Energy
Views: 80 | Downloads: 1
395 027 002
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395 027 002
Shown is a colorized image, created using a helium ion microscope, shows a used photocathode electrode obtained from the Thomas Jefferson National Accelerator Facility. Photocathodes are used to direct high-energy beams, such as X-rays, at samples. Researchers at PNNL have made a first attempt to understand how and why the expensive photocathode materials degrade with repeated use. Knowing more could lead to longer-lasting photocathodes, less down time for maintenance, lower cost of instruments and deeper insight into the particles and forces that make up our universe. For more information or additional images, please contact 202-586-5251.
Date Added:
June 4, 2014
Download: Largest
Size: 3200 x 3206
File size: 6.1 MB
File type: jpg
Download: Small
Size: 958 x 960
File size: 244.3 KB
File type: jpg
Public Domain

Why is this picture in the Public Domain?

Produced by United States Government
The file available on this page is a work of the United States government. A work of the United States government, as defined by United States copyright law, is "a work prepared by an officer or employee of the U.S. government as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law.
US Department of Energy

Where is this picture from?

US Department of Energy (Flickr Photostream)
External Site: US Department of Energy
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