NaI(Tl) Scintillation Crystal
Sodium Iodide doped with Thallium (NaI:Tl) remains the gold standard in inorganic scintillation materials, offering an unbeatable combination of superior luminous efficiency and exceptional cost-effectiveness. Emitting precisely at 415nm, its light output is perfectly matched to the sensitivity of standard bialkali photomultiplier tubes (PMTs), ensuring reliable, high-resolution detection for both X-ray and gamma-ray applications with highly stable temperature performance.Because NaI(Tl) is highly hygroscopic, expert manufacturing is critical. ATR Crystal delivers a comprehensive suite of custom solutions, including precision-sealed encapsulated NaI(Tl) scintillators, robust high-temperature NaI(Tl) variants, and fully integrated scintillation detectors. Whether you require precision for nuclear medicine and environmental monitoring, or rugged durability for aerial surveying and deep-well logging, our versatile NaI(Tl) components deliver proven, continuous performance.
Product Category:
Scintillation Crystal
Application of NaI(Tl) Scintillators (NaI:Tl Scintillators)
- Nuclear medicine
- Environmental monitoring
- Nuclear physics
- Aerial surveying
- Well logging
Advantages of NaI(Tl) Scintillators (NaI:Tl Scintillators)
- Good energy resolution
- High light output
- Emission spectrum well matched with the sensitivity curve of photomultiplier tubes (PMTs) with bialkali photocathodes
- High luminous efficiency
- Less affected by temperature
The Ability of ATR Crystal
- Maximum Size: 160mm x 200mm x 500mm
- Available items: encapsulated scintillator, high temperature encapsulated scintillator, scintillation detector
- Different encapsulation designs: general cylindrical NaI(Tl) scintillator, rectangular NaI(Tl) scintillator, end-well type NaI(Tl) scintillator, side-well type NaI(Tl) scintillator, thin disk type NaI(Tl) scintillator (for low-energy and X-ray detection) and so on.
- Typical size: 1″ diameter x 1″ thick, 2″ diameter x 2″ thick, 3″ diameter x 3″ thick, 5″ diameter X 5″ thick, 2″x4″x16″, 4″x4″x16
- Different encapsulation material options: metal shell(Aluminum, Stainless steel, Titanium alloy), optical output window(K9 glass window, Quartz window, Sapphire window), radiation entrance window(Beryllium entrance window, Aluminum entrance window).
High-Temperature NaI(Tl) Scintillators
- For oil logging applications, NaI(TI) scintillator works underground, it must withstand high temperatures above 150℃, certainshock, and vibration. The high-temperature NaI(TI) scintillators are encapsulated from high-temperature forged NaI(Tl) polycrystals
and special high-temperature resistant materials through reliable encapsulation technology. The working temperature range is
from -30℃to 175℃. It has excellent mechanical shock resistance, temperature shock resistance, and a long lifetime. The drilling
NaI(Tl) scintillator can work at 175°C and 30g strong vibration.
| Properties of NaI(Tl) Scintillators | |
| Light yield (photoelectron /MeV) | 38000 |
| Scintillation Decay Time (ns) | 250 |
| Emission Peak Wavelength (nm) | 415 |
| Refractive Index (peak wavelength) | 1.85 |
| Density（g/cm3） | 3.67 |
| Hygroscopic | Yes |
| Mohs hardness | 2 |
| Afterglow | 0.3~5%@6ms |
| Radiation length (cm) | 2.59 |
| Cleavage plane | <100> |
| Coefficient of thermal expansion (℃^-1) | 4.74×10^-5 |
| Molecular weight | 149.9 |
| Melting point (℃) | 651 |
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