惠磊光電科技（上海）有限公司
聯(lián)系人：Leo
電話：13917318636
地址：上海市嘉定區(qū)馬陸鎮(zhèn)豐年路88弄8號
摻鉈碘化鈉，Thallium doped Sodium Iodide (NaI(Tl))
碘化鈉（鉈）閃爍體具有較高的能量轉(zhuǎn)換效率和較好的能量分辨率，被廣泛地用于X射線和γ射線的探測，可制成各種尺寸與形狀的單晶或多晶。摻鈉碘化銫晶體光輸出接近摻鉈碘化銫，但發(fā)光衰減較摻鉈碘化銫短；發(fā)光主峰在420nm，與光電倍增管的光靈敏波段能很好地配合；晶體發(fā)光的溫度效應(yīng)好，特別適合高溫環(huán)境和空間科學(xué)研究中使用。
Properties
Value
After Glow
Apx. 4.0% at 2ms
After Glow
Apx. 8.0% at 1ms
Cleavage Planes
(100)
Decay Constant (μs)
0.23
Density (g.cm-3)
3.70
Emission Spectral Range (nm)
325 to 525
Gamma and X-ray absorption coefficients (cm-1)
0.29 at 660keV
Gamma and X-ray absorption coefficients (cm-1)
5.5 at 100keV
Light Escape Cone to Air (°)
44.7
Light Escape Cone to Glass (°)
56.5
Light Escape from one face to Air (%)
8.4
Light Escape from one face to Glass (%)
22.4
Melting Point (°C)
651
Optical Transmission Range
250nm to 35μ
Peak Scintillation Wavelength (nm)
410
Photons/MeV
40,000
Radiation Length (cm)
2.59/td>
Refractive Index at peak emission
1.80
Soluble in Alcohol
Yes
Stability
Very Hygroscopic
Structure
BCC
Temperature Coefficient of Light Output (%·K-1)
+0.08
Thermal Conductivity (W·m-1·K-1)
3.47 at 298K
Water Solubility (g/100ml H2O)
159 at 273K
Youngs Modulus (GPa)
9.7