X | 我不是台北書呆子
![X](https://i.imgur.com/Yg8tUKe.jpg)
X-rayscanbegeneratedbyanX-raytube,avacuumtubethatusesahighvoltagetoacceleratetheelectronsreleasedbyahotcathodetoahighvelocity.The ...
![X](https://i.imgur.com/Yg8tUKe.jpg)
Form of short-wavelength electromagnetic radiation
Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle.An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 145 eV to 124 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to as Röntgen radiation, after the German scientist Wilhelm Conrad Röntgen, who discovered it on November 8, 1895.[1] He named it X-radiation to signify an unknown type of radiation.[2]...
Medical X | 我不是台北書呆子
Plain Film X-Ray | 我不是台北書呆子
Principles of X | 我不是台北書呆子
X | 我不是台北書呆子
X | 我不是台北書呆子
X | 我不是台北書呆子
X | 我不是台北書呆子
X-ray Imaging | 我不是台北書呆子
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