ASNT Radiographic Testing Practice Test 2026 – Comprehensive All-in-One Guide for Exam Success!

Question: 1 / 400

As the MeV is increased, how does the cone of x-radiation change?

It becomes wider

It remains the same

It becomes more narrow

As the energy of x-radiation is increased, particularly in terms of megaelectronvolts (MeV), the cone of x-radiation becomes more narrow. This is because higher energy x-rays have a greater penetrating power, which allows them to pass through materials more efficiently. As a result, the spread of radiation (the cone angle) decreases, leading to a more focused beam. The increased energy reduces the scattering of x-rays, which typically occurs at lower energies, thereby creating a tighter, more directed radiation pattern. This principle is especially important in radiographic testing, as it enhances image quality by minimizing scatter and improving the contrast of the radiographic image.

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It fluctuates drastically

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