Radiology us the general term given to material inspection methods that are based on the differential absorption of penetrating radiation-either electromagnetic radiation of very short wavelength or particulate radiation – by the part or testpiece (object) being inspected.
Radiography is used to detect the features of a component or assembly that exhibit a difference in thickness or physical density as compared to surrounding material.
Large differences are more easily detected than small ones. In general, radiography can detect only those features that have an appreciable thickness in a direction parallel to the radiation beam.
This means that the ability of the process to detect planar discontinuities such as cracks depends on inspection. Discontinuities such as voids and inclusions, which have measurable thickness in all directions, can be detected as long as they are not too small in relation to section thickness. In general, features that exhibit a 1% or more differences in absorption compared to the surrounding material can be detected.
Radiology us the general term given to material inspection methods that are based on the differential absorption of penetrating radiation-either electromagnetic radiation of very short wavelength or particulate radiation – by the part or testpiece (object) being inspected.
Radiography is used to detect the features of a component or assembly that exhibit a difference in thickness or physical density as compared to surrounding material.
Large differences are more easily detected than small ones. In general, radiography can detect only those features that have an appreciable thickness in a direction parallel to the radiation beam.
This means that the ability of the process to detect planar discontinuities such as cracks depends on inspection. Discontinuities such as voids and inclusions, which have measurable thickness in all directions, can be detected as long as they are not too small in relation to section thickness. In general, features that exhibit a 1% or more differences in absorption compared to the surrounding material can be detected.
Three basic elements of radiography include a radiation source, the testpiece or object being evaluated, and a sensing material.
Radiation from the source is absorbed by the testpiece as the radiation passes through it, the flaw and surrounding material absorb different amounts of radiations.
Radiographic inspection is extensively used on casting and weldments, particularly where there is a critical need to ensure freedom from internal flaws.
Radiography is often specified for the inspection of thick wall castings and weldments for steam power equipment (boiler and turbine components and assemblies) and other high pressure systems.
Radiography can also be used on forgings and mechanical assemblies, although with mechanical assemblies, radiography is usually limited to inspection for condition and proper placement of components or for the proper liquid-fill level in sealed system.
It is also used to inspect for cracks, broken wires, foreign material, and misplaced and misaligned elements.
Italsabi is authorized to detain, transport and store sources of Ir-192, Se-75, Co-60 and Cs-137 all across Italian territory.
We also can offer a wide range of directional and panoramic X-ray tubes from 160 KV, 200KV and 300KV, constantly overhauled and calibrated.
Italsabi’s radiographer are selected to guarantee the client the utmost professionalism, respecting the required times and operating in maximum safety, according to what is established by the regulations in force concerning radioprotection.
Our technicians attend semi-annually training courses held by the qualified company expert aimed at verifying the compliance with the established operating procedures in order to guarantee the constant respect of the safety standards.
