瑞士苏黎世联邦理工学院(ETH Zurich)和洛桑联邦理工学院(EPFL)的研究团队成功开发出PLATON粒子探测器，能够在无分割的闪烁体材料块内追踪隐形粒子的三维路径1。这一创新系统采用光场相机、单光子雪崩二极管传感器和人工智能技术相结合1，突破了传统粒子探测需要数百万个微小探测器分量的限制，改用单个材料块即可实现探测功能1。
研究团队对原型系统进行了严格测试，在检测光子数从几百个到仅五个的各种条件下验证了其性能1。模拟结果表明，10×10×10厘米³的无分割PLATON探测器可实现低于1毫米的空间分辨率1，而一立方米大小的探测器则可达到几毫米的空间分辨率，与目前最先进的塑料闪烁体探测器性能相当1。这项研究已发表在《自然通讯》期刊上1，并已提交三项专利申请，其中涵盖该技术在正电子发射断层扫描(PET)医学成像中的应用1。该研究获得瑞士国家科学基金会资助1。
Researchers from ETH Zurich and EPFL have created PLATON, a novel particle detector that captures the three-dimensional trajectories of invisible particles within undivided blocks of scintillator material.1 The system combines light-field imaging, single-photon avalanche diode sensors, and artificial intelligence to achieve high-resolution particle tracking without requiring the millions of miniature detector components used in conventional systems.1
The prototype has been tested under conditions ranging from detection of several hundred photons down to as few as five photons.1 According to simulations, a 10×10×10 cubic centimeter undivided PLATON detector can achieve spatial resolution below 1 millimeter, while a cubic meter-sized detector would reach spatial resolution of several millimeters—performance comparable to state-of-the-art plastic scintillator detectors.1 The findings were published in Nature Communications in 2026.1
The research team has filed three patent applications related to potential applications of the technology in positron emission tomography (PET) medical imaging.1 The work was supported by the Swiss National Science Foundation.1
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