1 ) Environmental monitoring
2 ) Oil and gas exploration – well logging
3 ) Nuclear physics
4 ) Industrial – Thickness or density gauging, coal / mineral assy
1 ) High light output
2 ) No significant self absorption of scintillation light
3 ) Emission spectrum well matched with the sensitivity curve of photomultiplier tubes (PMTs) with bialkali photocathodes
4 ) Available in single crystal & polycrystalline form