What is this X-ray?

Summary. X-rays are a type of radiation called electromagnetic waves . X-ray imaging creates pictures of the inside of your body. The images show the parts of your body in different shades of black and white. This is because different tissues absorb different amounts of radiation.

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How do you make a THz frequency?

Broadband terahertz pulses can be generated by exciting THz-PCAs with a femto-second short pulse laser . Using a femto-second laser with ~ 100 fs optical pulse duration, terahertz pulses with their frequency content extended up to around 5 THz and an average power of a few μW can be achieved.

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