【摘要】 介绍旨在抑制BaF2 闪烁体慢发光成分 ,拓展其应用领域的紫外滤光膜系设计和性能测量结果 ,研究表明 ,以Al2 O3 MgF2 Al MgF2 为基本结构优化设计的紫外滤光膜系对来自BaF2 闪烁体不同角度入射的快 慢成分光分别具有高透射和强截止特性 .还提供了用纳秒级脉冲辐射源激发“BaF2 +紫外滤光膜系 +光电闪烁探测器”系统获得的BaF2 闪烁体时间响应曲线 ,并对紫外滤光膜系中子辐照损伤特性进行了研究更多还原

【Abstract】 In order to extend the scope of application of BaF 2 scintillators in the diagnosis of the fast pulse radiation field, an ultraviolet light filter has been developed for the modification of the scintillation spectrum. The experimental results reveal that the filter, which is composed of Al 2O 3, MgF 2, and Al, has a very low transmittance to the slow component light emitted by BaF 2 in the incident angles from 0°to 45° with respect to the surface normal, but has a relatively high transmittance to the fast component light also emitted by it. The property of the temporal response curve has been obtained by use of a pulse x rays source, and the damage effect induced by the irradiation of the neutron with an energy of 14.1 MeV is also introduced in this paper.更多还原