CsI(Na) Scintillator (CsI(Na) Scintillation Crystal)
Cesium Iodide doped with Sodium (CsI:Na) is a high-performance inorganic scintillation crystal widely used in radiation detection. Boasting a density of 4.51 g/cm³ and a light yield reaching 85% of NaI:Tl, it features a broad emission band peaking at 420 nm, perfectly matching the sensitivity of common photomultiplier tubes. With excellent thermal stability, mechanical strength and low hygroscopicity, it serves as a key component in medical imaging, high-energy physics experiments and space exploration equipment.
OST Photonics offers custom-supply of encapsulated CsI(Na) scintillators and integrated CsI(Na) scintillation detectors to meet specific client requirements.
Application
Nuclear Radiation Detection
High Energy & Dark Matter Experiments
Nuclear Medical Imaging
Space Exploration
Industrial Non-destructive Testing
Features
High light yield
Emission peak at 420 nm
Excellent thermal stability
High density (~4.51 g/cm³)
Production and Supply Capability
Maximum Size: ɸ80mm x 400mm
Available items: encapsulated scintillator, high temperature encapsulated scintillator, scintillation detector.
Properties
Density (g/cm3) | 4.51 |
Melting point (K) | 894 |
Thermal expansion coefficient (K-1) | 49 x 10-6 |
Cleavage plane | none |
Hardness (Mhos) | 2 |
Hygroscopic | yes |
Wavelength of emission maximum (nm) | 420 |
Lower wavelength cutoff (nm) | 300 |
Refractive index at emission maximum | 1.84 |
Primary decay time (µs) | 0.63 |
Afterglow (after 6ms) (%) | 0.5 – 5.0 |
Light yield (photons/MeV) | 41000 |
Photoelectron yield (% of NaI(Tl)) | 85 |
