A transparent hybrid metal halide glassy scintillation screen for high-resolution fast neutron radiography.
basic_science · Level V
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- Record sourced from PubMed, PMID 40617835.
- Also identified by DOI 10.1038/s41467-025-61503-9 and PMC identifier 12228732.
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Abstract
Fast neutron radiography offers exceptional penetration for high-density and bulky objects, yet its resolution is hindered by light scattering in conventional scintillators and screen fabrication techniques. To address this, here, we develop a transparent glassy Mn-based hybrid metal halide scintillation screen, (BTPP)<sub>1.8</sub>(HTPP)<sub>0.2</sub>MnBr<sub>4</sub> (BTPP<sup>+</sup> = butyltriphenylphosphonium, HTPP<sup>+</sup> = heptyltriphenylphosphonium), leveraging temperature-dependent ordered-disordered transitions. The large-area screen boasts >70% visible light transmittance (500-800 nm), a high photoluminescence quantum yield (~85.54%), and threefold higher light output than commercial ZnS (Ag): PP screens. With a spatial resolution of 5 lp mm<sup>-1</sup>, it surpasses existing scintillators. This hybrid material enables imaging of heavy objects with clear hierarchical details, providing accurate data for non-destructive detection while offering an alternative approach to scintillator design, advancing the potential of fast neutron radiography.