File:X-RayStandardization 003.jpg
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| Description | The x-ray towers at NBS, which generated x-ray voltages as high as 1.4 1million volts. Though no longer the largest in the United States at the time this photo was taken, the equipment had voltage stabilization second to none. This was a feature necessary for the x-ray research at NBS that led to standard dosage measurements and x-ray protection standards. | |||
| Date | 8/1/1940 | |||
| Source | National Institute of Standards and Technology | |||
| Author | National Institute of Standards and Technology | |||
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This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:22, 11 March 2014 | | 4,852 × 5,997 (24.34 MB) | NISTResearchLibrary (talk | contribs) |
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