Scintillation spectrometers consisting of inorganic scintillation crystals coupled to appropriate optical detectors are one of the most widely used classes of detectors for X-ray, gamma-ray and neutron radiation. Scintillation spectrometers are widely used in a number of important applications including nuclear and particle physics research, nuclear non-proliferation monitoring, geophysical exploration, astronomy, nondestructive evaluation, material science studies and medical imaging.
In the search for brighter and more responsive scintillators, a major push has been made in developing improved scintillators from the alkaline earth and the rare earth halide families. Two of the most promising examples of these crystals are CLYC and Strontium Iodide (SrI2).