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Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3Ã10 16 Hz to 3Ã10 19 Hz) and energies in the range 100 eV to 100 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays.
An x-ray is very similar to the light rays that our eye can perceive, except that they have much higher energy. This higher energy corresponds with their shorter wavelength. To generate an x-ray, a cathode is heated to a high temperature.The heat causes electrons to break away from the cathode.he patient is positioned between the x-ray machine and the film. It is the x ray technician's job to properly align the patient in space in order to capture the appropriate 2-D plane. Areas not of interest should be appropriately shielded. After the beam is activated, the film is shown to the radiologist.