Alaron, as a licensee of the EPRI DfD process, has performed a wide variety of tests to determinernif the DfD process can be used to decontaminate stainless steel components from nuclear powerrnreactors to free release. Our previous successful experience with Reactor Water Cleanup Unitrn(RWCU) heat exchangers led us to attempt to decontaminate components with much higherrnlevels of fixed and loose contamination. The objective of this attempt is not only to determine if arnsuccessful decontamination of portions of the components to free release can be achieved, butrnalso to analyze whether the process costs and secondary waste generated justify using the DfDrnprocess as opposed to direct disposal. In this paper we will present our experiences inrndecontaminating 20 shroud head bolts and 10 control rod drives that exhibit contact dose rates ofrn1.0 R/hr to 4 R/hr.
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机译：作为EPRI DfD工艺的被许可人，阿拉伦已经进行了各种测试，以确定DfD工艺是否可用于将不锈钢部件从核动力反应器中清除并释放。我们之前在反应堆水净化装置（RWCU）热交换器上的成功经验使我们尝试去净化具有更高固定和松散污染水平的组件。这项尝试的目的不仅在于确定是否可以对部件的各个部分进行成功的去污染以实现自由释放，而且还要分析使用DfDrn工艺（相对于直接处置）是否合理地证明了工艺成本和产生的二次废物是否合理。在本文中，我们将介绍我们对20个护罩头螺栓和10个控制杆驱动器进行净化的经验，这些驱动器的接触剂量率为rn1.0 R / hr至4 R / hr。
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