论文标题
可伸缩有机半导体中子探测器
Scalable Organic Semiconductor Neutron Detectors
论文作者
论文摘要
半导体中子探测器的长期局限性是缺乏可扩展的解决方案来制造大面积仪器。中子探测器用于广泛的应用，包括核工业，保护放射性材料，中子成像，无损检测，了解航空中使用的商业电子设备的空间天气影响以及核和粒子物理等基本科学。在这里，我们证明了解决方案可以扩展的有机半导体技术可以解决此问题。我们已经证明了从AMBE源（能量0.565和16.5 MEV）的快速中子，AMBE源的检测，以及用B-10富集B_4C敏感的设备中的热能（0.025 eV）。对于上面列出的许多应用程序，此能源范围是有趣的。发现检测器响应是线性的，通量高达1.5 x 10^7 n/cm^2/s。由于有机半导体与人体组织的密度相似，因此该技术可能对医学物理应用吸引，例如B中子捕获治疗剂量监测并了解人类组织中的中子相互作用。
A long-standing limitation of semiconductor neutron detectors is the lack of a scalable solution to make large area instruments. Neutron detectors are used in a wide range of applications, including the nuclear industry, safeguarding radioactive material, neutron imaging, non-destructive testing, understanding space weather effects on commercial electronics used in aviation, and for fundamental science such as nuclear and particle physics. Here we demonstrate that a solution processed organic semiconductor technology, which is scalable, can solve this aproblem. We have demonstrated detection of fast neutrons from monoenergetic beams (energies 0.565 and 16.5 MeV), from AmBe sources, and thermal energy (0.025 eV) in devices sensitised with B-10 enriched B_4C. This energy range is of interest for many of the applications listed above. The detector response is found to be linear with flux up to 1.5 x 10^7 n/cm^2/s. As organic semiconductors are a similar density to human tissue, this technology may be of interest for medical physics applications, for example B neutron capture therapy dose monitoring and understanding neutron interactions in human tissue.
