Organic Scintillation Crystals

Organic Scintillation Crystals

Organic scintillation crystals are polycyclic aromatic hydrocarbon compounds that exist in single crystalline form. They are typically grown from solution or by melt-based methods such as the Bridgman technique. Under ionizing radiation, they emit scintillation light in the wavelength region of 325nm (Naphthalene) to 650nm (Rubrene) with a decay time of the order of 1 to 50ns. Some organic crystals can perform neutron/gamma pulse shape discrimination (PSD) such as Stilbene and 9,10-Diphenylanthracene (DPA). At RMD, we offer organic crystals of 9,10-Diphenylanthracene (DPA) and 9-Phenylcarbazole (PCz), grown from solution. Other organic crystals are available upon request.

9-Phenylcarbazole (PCz)

  • 9 Phenylcarbazole (PCz) Organic Scintillation Crystal
    9 Phenylcarbazole (PCz) Organic Scintillation Crystal

    Size: Up to 10 in3

  • Chemical formula: C18H13N
  • Density: 1.24 g/cm3
  • Emission wavelength: Typically around 450 nm with a light yield of 20,000 ph/MeV
  • Figure of Merit for neutron/gamma PSD: > 2.0 at 1 MeVee
  • Operating temperature: Not to exceed 50°C
  • Care: The crystals are relatively rugged, but still should be handled with care

9,10-Diphenylanthracene (DPA)

  • 9,10-Diphenylanthracene (DPA) Organic Scintillation Crystal
    9,10-Diphenylanthracene (DPA) Organic Scintillation Crystal

    Size: Available in sizes up to 5 in3

  • Chemical formula: C26H18
  • Density: 1.22 g/cm3
  • Emission wavelength: 468 nm with a light yield of 14,000 ph/MeV
  • Figure of Merit for neutron/gamma PSD: > 2.0 at 1 MeVee
  • Operating temperature: Not to exceed 120°C
  • Care: Crystals are very brittle and need to be handled with care

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