Final answer:
Filters in radiographic X-ray tubes are typically made of high atomic number metals like aluminum or copper. CRTs in televisions, operating at high voltages, can produce X-rays but at lower intensities than medical X-ray tubes.
Step-by-step explanation:
The question you're asking relates to the components of filters used in radiographic X-ray tubes. These filters are made of materials that can attenuate the X-ray beam to improve the image contrast and reduce patient dose. The primary material of these filters is typically a metal with a high atomic number, which varies depending on the desired application and X-ray energy. For instance, materials like aluminum and copper are commonly used.
In the context of X-rays being created by a television tube, or CRT, when electrons strike an anode, whether it is copper or another suitable material, they can produce X-rays through processes like bremsstrahlung and the emission of characteristic X-rays that are typical of the anode material. It is important to note that while CRTs do operate at high voltages, the potential for X-ray production is typically much lower than that of dedicated X-ray tubes used in medical imaging.