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Intensified/shuttered cooled CCD camera for dynamic proton radiography

机译:增强/快门冷却的CCD相机,用于动态质子射线照相

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Abstract: An intensified/shuttered cooled PC-based CCD camerasystem was designed and successfully fielded on protonradiography experiments at the Los Alamos NationalLaboratory ALNSCE facility using 800-MeV protons. Thefour camera detector system used front-illuminatedfull-frame CCD arrays fiber optically coupled to either25-mm diameter planar diode or microchannel plate imageintensifiers which provided optical shuttering for timeresolved imaging of shock propagation in highexplosives. The intensifiers also provided wavelengthshifting and optical gain. Typical sequences consistingof four images corresponding to consecutive exposuresof about 500 ns duration for 40-ns proton burst imagesseparated by approximately 1 microsecond were takenduring the radiography experiments. Camera design goalsand measured performance characteristics includingresolution, dynamic range, responsivity, systemdetection quantum efficiency, and signal-to-noise willbe discussed. !4
机译:摘要:设计了基于PC的增强/快门冷却CCD相机系统,并成功地在洛斯阿拉莫斯国家实验室ALNSCE设施的质子射线照相实验中使用了800 MeV质子。四个摄像头探测器系统使用了前照式全帧CCD阵列光纤,该阵列光学耦合到直径25毫米的平面二极管或微通道板像增强器,后者为高分辨炸药中的冲击传播的时间分辨成像提供光学快门。增强器还提供了波长偏移和光学增益。在放射线照相实验期间,拍摄了由四个图像组成的典型序列,这些序列分别对应于40 ns质子爆发图像(相隔约1微秒)的约500 ns持续时间的连续曝光。将讨论相机的设计目标和测得的性能特征,包括分辨率,动态范围,响应度,系统检测量子效率和信噪比。 !4

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