LYSO Scintillator Crystal

LYSO (Cerium-doped Lutetium Yttrium Oxyorthosilicate, Ce:Lu₁₋ₓYₓSiO₅) is one of the most widely used high-performance scintillator crystals for PET imaging, time-of-flight (TOF) detectors, gamma-ray spectroscopy, and nuclear physics research. By partially substituting lutetium with yttrium, LYSO achieves excellent scintillation performance with reduced intrinsic background, while maintaining high density and fast response.

LYSO combines high light yield, fast decay time, high effective atomic number, and non-hygroscopic stability, making it ideal for compact, high-resolution radiation detectors. Our LYSO crystals are detector-grade, precision cut, and available with optical polishing for direct coupling to PMTs, SiPMs, or APDs.

Key Features

• Fast decay time (~40 ns)
• High light yield (~32,000 photons/MeV)
• High density (~7.1 g/cm³) for strong gamma stopping power
• Reduced intrinsic radioactivity vs pure LSO
• Non-hygroscopic (no special sealing required)
• Optical-grade polished surfaces available
• Custom sizes, pixel arrays, and surface treatments supported

Typical Specifications

• Material: LYSO:Ce (Lu₁₋ₓYₓSiO₅:Ce³⁺)
• Crystal Structure: Monoclinic
• Density: ~7.1 g/cm³
• Peak Emission: ~420–430 nm
• Decay Time: ~40 ns
• Light Yield: ~30,000–33,000 photons/MeV
• Energy Resolution: ~8–10% @ 662 keV (typical)
• Form: Block, slab, pixel, array, or custom geometry
• Surface Finish: Optical polish / ground / reflector-wrapped (optional)

Applications

• PET & TOF-PET medical imaging
• Gamma-ray spectroscopy
• Nuclear & particle physics detectors
• Homeland security & radiation monitoring
• Industrial inspection & NDT
• Advanced scintillation R&D systems