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Abstract <p>Steady‑state and pulsed X‑ray luminescence of nanocomposites based on polystyrene and inorganic scintillators (cerium‑doped lanthanum bromide LaBr<sub>3</sub>(Ce) and thallium‑doped cesium iodide CsI(Tl)) were investigated. The formation of high‑speed emission pulses of nanosecond duration with substantially enhanced intensity was observed. For certain combinations of composition and preparation conditions, the primary emission is concentrated in a fast nanosecond component with high light output. This is explained by the formation of molecular‑cluster assemblies in which interaction between the electronic and vibrational states of the organic and inorganic components initiates a new shock‑vibronic (impact‑vibronic) excitation mechanism.</p>

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New Nanocompositions from Organic Phosphors and Inorganic Scintillators to Improve Radiation Detectors

  • 期刊论文

  • 发表日期：

    2026年8月4日

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  • I. S. Tsebruk,
  • N. V. Klassen,
  • V. V. Kedrov,
  • A. P. Kiselev,
  • A. D. Orlov

摘要

Abstract

Steady‑state and pulsed X‑ray luminescence of nanocomposites based on polystyrene and inorganic scintillators (cerium‑doped lanthanum bromide LaBr3(Ce) and thallium‑doped cesium iodide CsI(Tl)) were investigated. The formation of high‑speed emission pulses of nanosecond duration with substantially enhanced intensity was observed. For certain combinations of composition and preparation conditions, the primary emission is concentrated in a fast nanosecond component with high light output. This is explained by the formation of molecular‑cluster assemblies in which interaction between the electronic and vibrational states of the organic and inorganic components initiates a new shock‑vibronic (impact‑vibronic) excitation mechanism.