The luminescence efficiency of CsI(Na) is similar to that of NaI(Tl) crystals. The emission spectrum peaked at 420nm can match well with PMT. Its temperature dependence is small and can be mainly applied in the well logging. 

Regular size: Dia 50mmx Length300mm
Customized size：Dia 39mmxLength 49mm
Types：Blank and aluminum encapsulation

Property of our CsI(Na)
Density (g/cm³)                                 4.51
Light Yield NaI(Tl) (%)                       85
Radiation length                             1.86
Emission peak(nm)                         420
Hygroscopicity                         deliquescent
Hardness (Mohs)                             2
Melting point(℃)                           621