NaI (Tl) Scintillation Crystal Description:
NaI (Tl) Scintillation Crystal is widely recognized as suitable alternatives to single-crystal scintillators in many applications where thermal and mechanical shocks are encountered. NaI (Tl) Scintillation Crystal is a new type of scintillation crystal material. This crystal offers ruggedness combined with a scintillation performance identical to single-crystal NaI(Tl). Current applications include aerospace research, oil well logging, geophysical survey, and radiation environmental monitoring.
NaI (Tl) Scintillation Crystal Advantages:
- High light output
- No significant self-absorption of scintillation light
- Emission spectrum well matched with the sensitivity curve of photomultiplier tubes (PMTs) with bialkali photocathodes
- Available in single-crystal & polycrystalline form
NaI (Tl) Scintillation Crystal Specifications:
Density (g/cm3)
|
3.67
|
Melting point (K)
|
924
|
Thermal expansion coefficient (C-1)
|
47.7 x 10-6
|
Cleavage plane
|
<100>
|
Hardness (Mho)
|
2
|
Hygroscopic
|
Yes
|
Wavelength of emission max. (nm)
|
415
|
Refractive index @ emission max
|
1.85
|
Primary decay time (ns)
|
250
|
Light yield (photons/keVγ
|
38
|
Temperature coefficient of light yield
|
0.3%C-1
|
NaI (Tl) Scintillation Crystal Applications:
- Environmental monitoring
- Oil and gas exploration – well-logging
- Nuclear physics
- Industrial – Thickness or density gauging, coal/mineral assy