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CLYC Crystal (Cs?LiYCl?:Ce) – High – Resolution Scintillator for Nuclear Security

Overview CLYC crystal, or cerium-doped cesium lithium yttrium chloride (Cs?LiYCl?:Ce), is a scintillation crystal with a potassium cryolite structure. As an advanced dual-mode detector material for neutrons and gamma rays, it converts radiation energy into light. With advantages like high energy resolution and dual detection capability, it plays a critical role in nuclear security, medical imaging, and more.

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Description

Key Advantages
High Energy Resolution
Enables precise differentiation of radiation energies, achieving ~4.5% resolution at 662 keV. This precision is vital for isotope identification in applications requiring detailed spectral analysis.
Dual Detection Capability
Simultaneously detects gamma rays and neutrons: efficiently detects thermal neutrons via the ?Li(n,t)?? reaction and fast neutrons (1?C10 MeV) via reactions like 3?Cl(n,p)3?S. This allows concurrent measurement of thermal/fast neutrons, gamma spectra, and fluence rates.
Fast Response Time
Features a fast decay component (~35 ns), enabling rapid signal conversion and output. Ideal for real-time applications such as nuclear accident emergency monitoring.
High Light Output
Delivers 20,000 photons/MeV, ensuring strong signals with high signal-to-noise ratios. Maintains detectability even for low-dose radiation.
Technical Specifications
This material has a melting point of 640 oC, a hardness of 2 on the Mohs scale, and a density of 3.31 g/cm3. Its refractive index is 1.81 (measured at 400 nm), with an emission wavelength of 370 nm. Additionally, it exhibits decay times of 1 ns, 50 ns, and 1000 ns, and a light yield of 20,000 photons per MeV.

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