ASNT Radiographic Testing Practice Test 2025 – Comprehensive All-in-One Guide for Exam Success!

The correct term that describes the solid body where high-velocity electrons decelerate to produce x-rays is the "target." In radiographic testing, when electrons emitted from a cathode are accelerated towards a target, they strike this solid material, usually made of tungsten or another high atomic number element. The rapid deceleration of these electrons upon hitting the target results in the emission of x-rays.

The specific design of the target material is crucial as it not only produces x-rays efficiently but also withstands the heat generated during this process. This aspect is vital for the longevity of radiographic equipment and the quality of the x-ray images produced.

While the anode is involved in the x-ray production process, it is primarily the electrode where the high-velocity electrons make contact. The term "source" can refer more broadly to where x-rays originate, and the cathode is specifically the component that generates electrons. In the context of this question, "target" is the most precise term to describe the physical body responsible for the production of x-rays through the deceleration of electrons.