Which instrument is generally used to detect gamma radiation?

The crystal scintillation counter is commonly used to detect gamma radiation due to its effective sensitivity to high-energy photons emitted during radioactive decay. This instrument works by using a crystalline material that scintillates, or emits light, when it absorbs gamma photons. The emitted light is then converted into an electrical signal by a photomultiplier tube, allowing for the quantification of the gamma radiation intensity. Crystal scintillation counters are particularly valued in clinical and environmental settings for their ability to measure low levels of gamma radiation accurately.

While liquid scintillation counters are adept at detecting beta particles and low-energy gamma radiation, they are not as efficient for higher-energy gamma radiation, which makes crystal scintillation counters the preferred choice for detecting gamma emissions. Therefore, the correct answer highlights the specific capability of crystal scintillation counters in the realm of gamma radiation detection.