A transparent hybrid metal halide glassy scintillation screen for high-resolution fast neutron radiography

Zi’an Zhou, Jinxiao Zheng (), Shihao Ruan, Guichu Yue, Tiao Feng, Yini An, Meimei Wu, Nü Wang, Shuyun Zhou, Linfeng He () and Chenghua Sun ()
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Zi’an Zhou: Chinese Academy of Sciences
Jinxiao Zheng: Chinese Academy of Sciences
Shihao Ruan: China Institute of Atomic Energy
Guichu Yue: Inner Mongolia University of Technology
Tiao Feng: Chinese Academy of Sciences
Yini An: Chinese Academy of Sciences
Meimei Wu: China Institute of Atomic Energy
Nü Wang: Beihang University
Shuyun Zhou: Chinese Academy of Sciences
Linfeng He: China Institute of Atomic Energy
Chenghua Sun: Chinese Academy of Sciences

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: 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)1.8(HTPP)0.2MnBr4 (BTPP+ = butyltriphenylphosphonium, HTPP+ = 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−1, 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.

Date: 2025
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DOI: 10.1038/s41467-025-61503-9

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