Ptt 大爆卦 | Backscatter x ray - 前往 https://arstechnica.com/science/2010/12/the-physics-and-biology-of-the-tsas-backscatter-security-scanners/

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The physics and biology of the TSA's backscatter security ...

For a backscatter system, the X-ray source and the sensor are placed on the same side of the object being imaged. The X-rays themselves are ...

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