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Laser surface inspections: Fundamentals and applications to monitor inner surface conditions of nuclear fusion reactor chambers

机译:激光表面检查:监视核聚变反应堆腔室内表面状况的基本原理和应用

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The most recent fundamental research results to investigate surface erosions of nuclear fusion candidate chamber materials are described in short. We used a commercial surface profiler with a red semiconductor laser. Various material surfaces ablated and eroded by a rather short pulse electron beam and a short pulse ArF laser light were measured with this surface profiler and the associated three-dimensional analysis software. Threshold input levels for various sample surface erosions with electron and laser beams were clearly decided for the first time with our new method in this article. After the above fundamental results were gathered, the methods to inspect inner surface conditions of nuclear fusion reactor chambers were newly proposed with various kinds of laser displacement sensors. The first one is the erosion monitor with the above profiler, and the second one is the laser induced ultrasonic wave detection method to inspect deeper surface layers than the first one.
机译:简短描述了研究核聚变候选腔室材料表面腐蚀的最新基础研究结果。我们使用了带有红色半导体激光器的商用表面轮廓仪。用该表面轮廓仪和相关的三维分析软件测量了相当短的脉冲电子束和短脉冲的ArF激光烧蚀和腐蚀的各种材料表面。本文首次使用我们的新方法明确确定了各种样品表面受到电子和激光束腐蚀的阈值输入水平。在收集了上述基本结果之后,提出了使用各种激光位移传感器来检查核聚变反应堆腔室内表面状况的方法。第一种是具有上述轮廓仪的腐蚀监测仪,第二种是激光感应超声波检测方法,用于检测比第一种更深的表面层。

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