Image: Tech backscatter
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Tech_backscatter.jpg (209 × 170 pixels, file size: 11 KB, MIME type: image/jpeg)
Description: Backscatter Unit
Title: Tech backscatter
Credit: TSA How it works Direct
Author: Transportation Security Administration
Permission: This image or file is a work of a United States Department of Homeland Security employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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