A wipe sample targets radioactive material that can be removed from an accessible surface, rather than relying only on the source’s sealed construction. Measuring that sample with a radiation detector provides an indication of whether material has escaped from the source or its container. This makes the test useful for detecting compromised encapsulation before contamination risks increase.
Detector readings require comparison with established safety limits to determine whether the measured removable activity is acceptable. The limit provides the decision point for interpreting the wipe result, while the sample supplies the measured evidence. Using both elements supports consistent quality control, helps identify a potentially damaged source, and strengthens radiation-safety documentation.
Radioactivity Leakage Test focuses specifically on removable radioactive material collected from accessible surfaces. It therefore addresses the integrity of the source’s encapsulation and the possibility of contamination, rather than only considering the source as a sealed object. That distinction matters in medical settings where sealed sources may be handled near staff and patients.
First, personnel wipe accessible surfaces of the radioactive source or its container. They then measure the wipe sample with a radiation detector and compare the result with the applicable safety limit. This sequence links sampling, measurement, and interpretation, allowing the test to reveal removable contamination and provide a documented quality-control result.
Two elements are central: where the wipe is taken and how its measured activity compares with the established safety limit. Accessible surfaces must be sampled so that removable material can be assessed, and the detector result must be interpreted against the relevant threshold. A concerning result can indicate damaged encapsulation and support radiation-safety follow-up.
In medicine, regular testing supports the safe use of sealed sources in brachytherapy, calibration equipment, and other nuclear medicine applications. It can identify damaged encapsulation early, reduce contamination risks, and help protect staff and patients. Maintaining test results also documents that radiation-safety requirements are being addressed, making the procedure part of ongoing source quality control.