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An Affordable Image Detector and a Low-Cost Evaluation System for Computed Tomography Using Neutrons, X-rays, or Visible Light

机译:一种经济实惠的图像检测器和使用中子,X射线或可见光的计算断层扫描的低成本评估系统

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Neutron computed tomography (nCT) has been established at many major neutron sources worldwide, using high-end equipment requiring major investment and development. Many older and smaller reactors would also be capable of doing nCT, but cannot afford the investment before feasibility is proven. We have developed a compact low-cost but high-quality detection system using a new cooled CMOS camera that can either be fully integrated into a sophisticated setup, or used with a rudimentary CT control and motion system to quickly evaluate feasibility of neutron CT at a given beam line facility. Exchanging the scintillation screen makes it feasible for X-rays as well, even for visible light (and transparent samples) using a matte screen. The control system uses a hack to combine motion control with existing imaging software so it can be used to test several dozen different cameras without writing specific drivers. Freeware software can do reconstruction and 3D imaging.
机译:中子计算断层扫描(NCT)已经在全球许多主要中子源建立,使用需要重大投资和发展的高端设备。 许多年长和较小的反应堆也能够进行NCT,但在经过可行性之前不能承担投资。 我们开发了一种紧凑的低成本但高质量的检测系统,使用新的冷却CMOS相机,可以完全集成到复杂的设置中,或者与基本的CT控制和运动系统一起使用,以快速评估中子CT的可行性 给定梁线设施。 交换闪烁屏幕使X射线也可行,即使是使用遮罩屏幕的可见光(和透明样本)。 控制系统使用HACK将运动控制与现有的成像软件相结合,因此可用于在不编写特定驱动程序的情况下测试几十个不同的摄像机。 免费软件可以进行重建和3D成像。

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