Radiation Monitoring Devices, Inc. (RMD)

RMDModel CLYC -Dual-mode Gamma-Neutron Scintillator

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CLYC (Cs2LiYCl6:Ce) is a dual-mode gamma-neutron scintillator and the first practical detector for use as a replacement for both medium resolution gamma-ray detectors and Helium-3 proportional counter tubes for neutron detection. The ease of using Pulse Shape Discrimination (PSD) for neutron detection, combined with better gamma-ray resolution than Sodium Iodide (NaI) or Caesium Iodide (CsI), make the CLYC detector an ideal solution for several classes of handheld instruments, including Personal Radiation Detectors (PRDs), Spectroscopic Personal Radiation Detectors (SPRDs), and Radioisotope Identification Devices (RIIDs).

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  • Material: Cs2LiYCl6:Ce
  • Melting Point: 640°C
  • Density: 3.31 g/cm3
  • Crystal Structure: Cubic
  • Cleavage planes: None
  • Water Solubility: Hygroscopic
  • Refractive Index: 1.81 ± 0.037 @ 405 nm
  • Coefficient of Thermal Expansion: 34.34×106/°C @ 30°C
  • Emission Spectral Range: 275 – 450 nm
  • Peak Scintillation Wavelength: 370 nm
  • Decay Constants (CVL. Ce3+, Ce-STE): 1 ns, 50 ns, 1000 ns
  • Scintillation Light Yield: 20,000 ph/MeV
  • GEE for Thermal Neutrons: 3.2 MeV
  • X-ray Absorption Coef. at 100 KeV: 3.97 cm·1
  • X-ray Absorption Coef. at 662 KeV: 0.251 cm·1
  • Radiation Length: 3.42 cm
  • Heat Capacity: 0.379 J/(g*K)
  • Thermal Conductivity: 0.0067 W/(cm *K) at 50°C

 Size

  • 25mm (1″) diameter/25mm (1″) long cylinder
  • 38mm (1.5″) diameter/38mm (1.5″) long cylinder
  • 50mm (2″) diameter/50mm (2″) long cylinder
  • 75mm (3″) diameter/75mm (3″) long cylinder
  • 75mm (3″) diameter/101mm (4″) long cylinder