What is a common method for checking for leaks in sealed radioactive sources?

Utilizing a radiation detection survey meter or wipe test is a common method for checking for leaks in sealed radioactive sources because these tools are specifically designed to measure radiation levels. In the case of a survey meter, it allows for real-time detection of radiation in the environment surrounding the sealed source. This method helps identify if there is any leakage of radioactive material.

On the other hand, a wipe test involves using a absorbent material to wipe the surface of the source. The wipe is then analyzed for radioactive contamination. This method is effective in detecting any particles or traces of radioactive material that may have escaped from the source.

In contrast, using a pocket dosimeter primarily measures personal exposure to radiation rather than leak detection, so it does not provide accurate data on the integrity of the sealed source itself. While visually inspecting for cracks could indicate physical damage, it does not specifically ascertain if radiation is escaping. Similarly, ultrasonic testing is typically employed to detect structural flaws in materials but is not a recognized method for assessing radioactive leaks from sealed sources. Thus, the combination of these techniques provides a comprehensive approach to ensuring the safety and integrity of sealed radioactive sources.