Tungsten is the metal of choice for the source of x-ray photons because of its

Question

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Tungsten has a high atomic number (74), which means it has a large number of protons in its nucleus, making it an excellent target for generating high energy x-ray photons. The high atomic number also leads to a higher probability of photoelectric absorption, which is desirable for many medical imaging applications. Tungsten also has a high melting point, making it able to withstand the high temperatures generated during x-ray production. While tungsten may be more expensive compared to other metals, its superior properties make it the ideal material for x-ray sources.

Tungsten Is the Metal of Choice for the Source of X-Ray