Which type of radiation detector is best for assessing contamination?

A handheld radiation detector is highly effective for assessing contamination because it is specifically designed to detect and measure the presence of radioactive materials in the environment. These detectors can identify different types of radiation, such as alpha, beta, and gamma radiation, which are crucial when assessing for contamination in various settings, including medical facilities, nuclear power plants, or areas affected by radiological incidents.

Handheld radiation detectors are portable, allowing users to conduct on-site assessments quickly and efficiently. They often come equipped with features such as user-friendly interfaces, real-time readings, and alarms that activate when radiation levels exceed safe thresholds, making them practical tools for first responders and health and safety professionals.

In contrast, other devices mentioned in the options do not serve the same purpose. A thermal camera is used for thermal imaging and identifying temperature variations, which is not related to radiation contamination. A smoke detector is designed to detect smoke as an indicator of fire, and while it ensures safety from fires, it does not detect radioactivity. Lastly, a gas chromatograph is a laboratory instrument used for separating and analyzing compounds in a sample, primarily in chemistry rather than radiation detection. Thus, the handheld radiation detector stands out as the most appropriate choice for assessing contamination due to its specific design and application in