Chemistry:Lutetium-yttrium oxyorthosilicate
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Identifiers | |
---|---|
Properties | |
Lu2(1-x)Y2xSiO5 | |
Density | 7.3 g/cm3 |
Melting point | 2,047 °C (3,717 °F; 2,320 K) |
Refractive index (nD)
|
1.82 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Lutetium-yttrium oxyorthosilicate, also known as LYSO, is an inorganic chemical compound with main use as a scintillator crystal. Its chemical formula is Lu2(1-x)Y2xSiO5. It is commonly used to build screens and electromagnetic calorimeters in particle physics. LYSO crystals have the advantages of high light output and density, quick decay time, excellent energy resolution.
Density (g/cm3) | 7.4 |
Effective Atomic Number | 66 |
Radiation length (cm) | 1.10 |
Decay Constant (ns) | 40-44 |
Peak Emission (nm) | 428 |
Light Yield (Relative BGO=100%) | 190 |
Index of Refraction | 1.82 |
Peak excitation (nm) | 375 |
Radiation Hardness (rad) | >106 |
Melting Point (°C) | 2050 |
Hardness (Mohs) | 5.8 |
References
- http://authors.library.caltech.edu/8520/1/CHEieeetns07b.pdf
- http://omegapiezo.com/crystal_scintillators.html