In order to develop a high spatial resolution (micron level) thermal neutron detector, a detector assembly composed of cerium doped lithium glass microfibers, each with a diameter of 1\,$μ$m, is proposed, where the neutron absorption location is reconstructed from the observed charged particle products that result from neutron absorption. To suppress the cross talk of the scintillation light, each scintillating fiber is surrounded by air-filled glass capillaries with the same diameter as the fiber. This pattern is repeated to form a bulk microfiber detector. On one end, the surface of the detector is painted with a thin optical reflector to increase the light collection efficiency at the other end. Then the scintillation light emitted by any neutron interaction is transmitted to one end, magnified, and recorded by an intensified CCD camera. A simulation based on the Geant4 toolkit was developed to model this detector. All the relevant physics processes including neutron interaction, scintillation, and optical boundary behaviors are si\-mulated. This simulation was first validated through measurements of neutron response from lithium glass cylinders. With good expected light collection, an algorithm based upon the features inherent to alpha and triton particle tracks is proposed to reconstruct the neutron reaction position in the glass fiber array. Given a 1\,$μ$m fiber diameter and 0.1\,mm detector thickness, the neutron spatial resolution is expected to reach $σ\sim 1\, μ$m with a Gaussian fit in each lateral dimension. The detection efficiency was estimated to be 3.7\% for a glass fiber assembly with thickness of 0.1\,mm. When the detector thickness increases from 0.1\,mm to 1\,mm, the position resolution is not expected to vary much, while the detection efficiency is expected to increase by about a factor of ten.
Ultracold neutron detection with 6Li-doped glass scintillators, NANOSC: a fast ultracold neutron detector for the nEDM experiment at the Paul Scherrer Institute
本文总结了旨在表征超冷中子探测的测量结果与6Li掺杂玻璃闪烁体。厚度为100-200微米的单个GS 10或GS 20中子源满足超冷中子探测要求，具有可接受的中子-伽马鉴别力。这种区分明显地通过两个澄清器的堆叠得到改善：6Li耗尽的玻璃结合到6Li富集的玻璃。光学接触粘合用于两个反射器之间，以获得完美的光学接触。闪烁体的探测效率类似于3 He Strelkov气体探测器。与数字数据采集系统耦合，计数率可达10^5计数/秒。基于这种闪烁体堆叠布置的探测器已经建成，并自2010年以来一直用于Paul Scherrer研究所的中子电偶极矩实验。给出了它对中子电偶极矩实验正常运行的响应。
Performance and pulse shape discrimination of glass scintillator SG101 for neutron detection
School of Physics, Sun Yat-sen University（中山大学物理学院）；Institut Franco-Chinois de l’Énergie Nucléaire , Sun Yat-sen University（中法核能源学院，中山大学）；School of Science, Sun Yat-sen University（中山大学理学院）；Beijing Hoton Technology Co.Ltd.（北京霍顿科技有限公司）
Response of a Li-glass/multi-anode photomultiplier detector to $α$-particles from $^{241}$Am
测量了位置敏感锂玻璃闪烁体探测器对来自准直$^{241}$ Am源的$α$粒子的响应。闪烁光由8 X 8像素多阳极光电倍增管读出，并且对于扫描上的每个位置记录每个像素的信号幅度。像素信号强烈地依赖于位置，并且通常几个像素将记录高于给定阈值的信号（命中）。研究了该阈值对命中多重性的影响，以优化检测器的单次命中效率。
SiPM-based neutron Anger camera with auto-calibration capabilities
我们目前的中子愤怒相机的基础上的锂-6加载铈激活硅酸盐玻璃闪烁体（33.3 × 33.3 × 1 mm 3）和64硅光电倍增器阵列的表征结果。用在图形处理单元（GPU）上实现的统计方法来执行闪烁事件的重建。我们证明，光响应模型的探测器可以获得洪水照射校准数据使用一个无监督的迭代过程。有效视场为28 x 28 mm 2。在2.5A中子束下测量的空间分辨率优于0.6mm半高宽，中子峰能量分辨率为11%。
