Hybrid plastic scintillators aim to improve nuclear safety and medical imaging

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Researchers from Xiangtan University and the China Institute of Atomic Energy have developed a new type of plastic scintillator that demonstrates enhanced optical transparency and mechanical durability. These materials offer a safer, more cost-effective alternative to traditional radiation detectors and may impact sectors such as nuclear safety, homeland security, and medical imaging.

Safer & More Cost-Effective Radiation Detection

Radiation detectors are widely used in nuclear power, border security, and medical diagnostics. Traditional detectors, however, often face challenges related to cost, fragility, and reliance on hazardous materials. The newly developed hybrid plastic scintillators address these issues by offering improvements in optical clarity and mechanical strength. This could lead to the development of next-generation radiation detectors that are more durable and efficient to manufacture.

“This development demonstrates the potential for creating next-generation radiation detectors that are both durable and clear,” said Prof. Ying-Du Liu, the corresponding author. “We hope this advancement will inform future research and industry practices.”

Prominent Advancements for Industry and Society

Industries relying on radiation detection could see cost reductions due to simpler production processes and longer material lifespan. The research may also encourage further studies on hybrid polymer materials, potentially benefiting applications in optical sensors, wearable biomedical devices, and other fields.

This advancement is relevant given current global concerns about nuclear safety, healthcare costs, and the need for efficient radiation detection systems. The hybrid scintillators offer a potential solution to several of these challenges.

Innovative Material Design Leads to New Capabilities

The research team’s analysis revealed several significant findings regarding plastic scintillators’ clarity, strength, and overall performance. Adding polymethyl methacrylate (PMMA) to polystyrene-based scintillators increased visible light transmissivity to 90%, facilitating more precise and clear radiation detection. The inclusion of PMMA also enhanced the mechanical hardness of the scintillators by up to 55%, improving resistance to wear, impact, and environmental stress. An optimal composition was identified with a 20% PMMA blend, which provided a balance of clarity, mechanical strength, and detection accuracy. While higher PMMA concentrations reduced light output, the 20% blend maintained strong performance and stability over time.

This research outlines a potential path toward safer, more durable, and more cost-effective radiation detectors. By enhancing optical clarity and mechanical strength while maintaining detection performance, the hybrid plastic scintillators may influence the future of radiation detection technologies. As global demand for improved radiation detection increases, these materials offer a promising solution for several critical industries.  The complete study is accessible via DOI: 10.1007/s41365-024-01577-0.