Understanding Neutron Radiography Post Exam Reading VIII-Part 2a of 2A

Materials and Characteristics
Scintillation materials come in gaseous, liquid and solid forms. Organic liquids
and solids, as well as inorganic gases and solids, are common scintillators.
Organic, solid scintillators are available as crystals, plastics and gels.
Inorganic solid scintillators are usually alkali halide crystals.
The scintillation process in inorganic materials requires the presence of small
amounts of an impurity, or activator. Inorganic solid scintillators are commonly
used with radiation survey instruments and are listed in Table 3.
Charlie Chong/ Fion Zhang