What is the primary purpose of radiographic testing?

The primary purpose of radiographic testing is to detect internal defects in materials. This nondestructive testing method utilizes ionizing radiation, such as X-rays or gamma rays, to produce images that reveal the internal structure of the material being tested. By analyzing these images, technicians can identify the presence of cracks, voids, inclusions, or other irregularities that may compromise the integrity of the material or component. This capability is essential in various industries, including manufacturing, aviation, and construction, as it helps ensure safety and reliability by identifying flaws that may not be visible through other inspection methods.

The other options focus on different measurement or assessment techniques that do not align with the fundamental objective of radiographic testing. For instance, measuring electrical conductivity or assessing material thickness involves different nondestructive testing methods such as eddy current testing or ultrasonic testing, which are separate from the scope of radiographic testing. Similarly, improving the chemical properties of materials is not a function of radiographic testing but rather involves chemical processes and treatments, further emphasizing that the main role of radiographic testing is specifically related to defect detection.