Design of a new CCD-camera neutron radiography detector
Design of a new CCD-camera neutron radiography detector
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DOI：
10.1016/s0168-9002(97)00944-3
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发表时间：
1997-11
影响因子：
1.4
通讯作者：
H. Pleinert;E. Lehmann;S. Körner
中科院分区：
文献类型：
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作者：
H. Pleinert;E. Lehmann;S. Körner
Paul Scherrer研究所设计了一种新的电子中子射线照相探测器，目的是为需要高定量精度的科学和工业射线照相应用提供一种工具。探测器的基本原理是CCD相机与中子敏感闪烁体屏幕的组合。来自屏幕的光线被一面镜子反射到相机上，并通过一个透镜聚焦在CCD芯片上。保护摄像机免受辐射损害的屏蔽部件包括位于反射镜和透镜之间的光路中的辐射保护窗口。整个组件被放置在探测器盒中，该探测器盒用作定位装置和不透光外壳。该探测器已被优化用于未来的中子射线照相站在连续的中子源SINQ，但也可以很容易地移动到其他中子源。该探测器已在几个设施进行了测试，其性能进行了研究，动态范围和空间分辨率，以及减少干扰因素。
A new electronic neutron radiography detector has been designed at the Paul Scherrer Institute with the aim of providing a tool for scientific and industrial radiography applications requiring high-quantitative precision. The basic principle of the detector is the combination of a CCD-camera with a neutron-sensitive scintillator screen. The light from the screen is reflected to the camera by a mirror and focused on the CCD-chip by a lens. Shielding components to protect the camera from radiation damage include radiation protection windows located in the optical path between mirror and lens. The whole assembly is placed in a detector box which functions as a positioning device and light-tight enclosure. The detector has been optimized for use at the future neutron radiography station at the continuous spallation source SINQ but can also be moved easily to other neutron sources. The detector has been tested at several facilities and its performance has been studied regarding dynamic range and spatial resolution as well as the reduction of interference factors.