论文标题
模拟固态中子探测器对欧洲剥落源的响应
Simulation of the Response of the Solid State Neutron Detector for the European Spallation Source
论文作者
论文摘要
基于GEANT4的计算机代码模拟了欧洲散布源的中子散射测量的固态中子探测器的特征。该代码模拟了热中子和电离辐射在6Li掺杂的镜头玻璃中的离子化辐射，闪烁光的产生以及通过闪烁体的光学，闪烁光子的传输，途径在连接的多动物摄影剂的光子阴极中。影响光光子传输的因素，例如表面饰面，玻璃板的像素化，前反射器的提供和光耦合介质。将检测器响应的预测与用中子和伽玛射线源，准直alpha源和2.5 mev质子和杜特龙的精细光束进行比较。
The characteristics of the Solid-state Neutron Detector, under development for neutron-scattering measurements at the European Spallation Source, have been simulated with a Geant4-based computer code. The code models the interations of thermal neutrons and ionising radiation in the 6Li-doped scintillating glass of the detector, the production of scintillation light and the transport of optical, scintillation photons through the the scintillator, en route to the photo-cathode of the attached multi-anode photomultiplier. Factors which affect the optical-photon transport, such as surface finish, pixelation of the glass sheet, provision of a front reflector and optical coupling media are compared. Predictions of the detector response are compared with measurements made with neutron and gamma-ray sources, a collimated alpha source and finely collimated beams of 2.5 MeV protons and deuterons.
