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首页> 外文会议>Decommissioning, decontamination, and reutilization topical meeting 2010 >Surface decontamination with an optimized laser system
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Surface decontamination with an optimized laser system

机译：使用优化的激光系统进行表面净化

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As the first and second generations of nuclear facilities are being closed, a growing number of radioactively contaminated buildings have to be dismantled. In parallel increasing societal, environmenta and economical constraints put strong requirements on tl site owners. Those constraints include a reduction of the worker exposition, a reduction of total waste and of the cost.rnThis leads to the development of various techniques for decontamination and decommissioning. Laser systen have long been seen as potentially very interesting for removing contamination from surfaces. As the main expected advantages, it was mentioned the possibility of remote process and the absence of secondary waste. However these systems were unable to find their way to an industrial deployment due to the lack of reliability of the laser and the difficulty to satisfactory collect the (contaminated) removed matter.rnIn this contribution we report on a compact, reliable and efficient laser decontaminating system called ASPILASER. It takes advantages of the recent progress made by the fibre lasers which have now a lifetime long< than 20,000 hours without maintenance. The collecting system collects all the removed matter (gases and aerosols) on nuclear grade filters. The fully automated system was tested on a vertical wall of a stopped nuclear installation. It has demonstrated an efficiency of 1 m~2/hr which is in the same order of other classical techniques but with a much lower quantity of waste and the ability t work continuously without human intervention.rnMeasurements performed after the laser treatment have shown that the contamination was completely removed by removing the paint and that this contamination was not re-deposited elsewhere on the wall.
机译：随着第一代和第二代核设施的关闭，必须拆除越来越多的放射性污染建筑物。同时，越来越多的社会，环境和经济限制对站点所有者提出了强烈要求。这些限制包括减少工人博览会，减少总浪费和降低成本。这导致了各种净化和退役技术的发展。长期以来，人们一直认为激光系统对于去除表面的污染物可能非常有趣。作为主要的预期优势，提到了可以进行远程处理并且不存在二次废物的可能性。但是，由于缺乏激光的可靠性以及难以令人满意地收集（污染的）去除物质，这些系统无法找到进入工业部署的途径。在此报告中，我们报告了一种紧凑，可靠且高效的激光去污系统。称为ASPILASER。它利用了光纤激光器的最新进展，这些激光器现在的使用寿命长于20,000小时而无需维护。收集系统将所有去除的物质（气体和浮质）收集到核级过滤器上。全自动系统在停止的核设施的垂直墙上进行了测试。它已证明其效率为1 m〜2 / hr，与其他经典技术相同，但是浪费少得多，并且能够在没有人为干预的情况下连续工作。rn激光处理后进行的测量表明去除涂料可以完全去除污染物，并且不会将污染物重新沉积在墙壁上的其他位置。

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