CsI(Na) Scintillator Crystals

High Light Output
High Density and Atomic Number
Emission at 420nm and Matching Well to PMT
Applications: Well Logging, Space Research, and Other Harsh Environmental Applications

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Basic Properties:

Melting Point (°C)	894	Density (g/cm³)	4.51
Cleavage Plane	None	Hardness(Mohs)	2
Hygroscopic	Yes	Refractive Index at Emission Peak	1.84
Emission Peak Wavelength	420	Lower Wavelength Cutoff(nm)	300
Decay Time(ns)	630	Light Yield(Photons/KeV)	41
Photoelectron Yield(% of NaI(Tl))	85

Sodium doped Cesium Iodide, or CsI(Na), has a wavelength of emission peak at 420nm, which makes it well matched to the photo-cathode sensitivity of bialkali photomultiplier (PMT), CsI(Na) scintillation crystals also has a high light output yielding up to 85% of NaI(Tl). Compared to NaI(Tl), it is a relatively soft and plastic material without a cleavage plane, which makes the CsI(Na) scintillator materials suitable for harsh environmental applications, like well-logging, space research, etc.

Hangzhou Shalom EO offers the CsI(Na) custom scintillator, the polished and encapsulated CsI(Na) crystals are available, and the Photo Multiplier (PMT) could be installed if requested.

Scintillation Detectors (Scintillators+PMT+Electronics)

Aluminum or stainless steel housing
PMT made by Beijing Hamamatsu, ET, or others
Package with Voltage Divider, Preamplifier, High Voltage Module (HV), and Connectors available upon requests
Various scintillators options: NaI(Tl), CsI(Tl), CsI(Na), LYSO(Ce), BGO, LaBr3(Ce), LaCl3(Ce), CeBr3 and plastic scintillators
Main Applications: X-radiation and gamma detections

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CsI Scintillation Crystals

Fast decay time: 16ns
Emission peak at 315nm
Lower light output than CsI(Tl) and CsI(Na)
Grown using the Bridgman method, maximum size diameter 90mm x 300mm length
High stopping power
CsI one-dimensional line arrays, CsI two-dimensional plane arrays, CsI(Tl), and CsI(Na) also available

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