Pr: LuAG crystal (chemical Pr: Lu3Al5O12, also known as Pr-doped aluminium garnet crystal) is a scintillation crystal with excellent performance and is widely used in high energy physics, oil logging, and other fields. The light output is up to 20,000 photons/MeV, which is about three times that of BGO. Decay time (about 20ns) and energy resolution (4.9%@662KeV) are better than BGO and Ce: LYSO. Pr: LuAG crystals have a strong ability to prevent gamma rays, and are non-tidal, inexpensive. Therefore, Pr: LuAG crystals have important applications in nuclear medicine imaging and other fields. In particular, Pr: LuAG crystals have a decay time of 20ns and are well suited for applications such as time-of-flight positron emission tomography (TOF-PET) and fast ion imaging. The Pr: LuAG crystal is also suitable for positron emission breast cancer scanners (PEM).
Parameter
Material Features
| Chemical formula | Pr:Lu3Al5O12 |
| Density (g/cm3) | 6.73 |
| Melting point (℃) | 2043 |
| Hardness (Mho) | 7.5 |
| Hygroscopic | No |
| Cleavage | No |
| Solubility (g/100gH2O) | N/A |
| Thermal conductivity (W/mK) | 9.7 |
| Thermal expansion coeff (C-1) | 8.8*10-6 |
Scintillator Properties
| Wavelength(Max. emission) (nm) | 310 |
| Decay time (ns) | 20 |
| Light yield (photons/keV) | 22 |
| Light output relative to Nal(Tl) (%) | 20 |
| Refractive index | 2.03@310nm |
| Radiation length (cm) | 1.41 |
| Optical transmission (um) | TBA |
| Transmittance (%） | TBA |
| Reflection loss/surface (%) | TBA |
| Energy resolution (%) | ≤5 |
| Neutron Capture Cross-section (barns) | TBA |
| Afterglow (%) | <0.3 |
Spertrum
Feature
- Strong gamma ray blocking ability
- Not easy to tide
- High light output
- Fast decay time
- Low energy resolution
Application
- Time-of-flight positron emission tomography (TOF-PET)
- Fast Ion Imaging
- Positron Emission Mammography (PEM)
- High Energy Physical Detection
- Petroleum Logging
