Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5361098 | Applied Surface Science | 2008 | 4 Pages |
Abstract
We present here the experimental results on cleaning of radioactive dielectric particulates, loosely deposited on stainless steel, by coherent light of 1064Â nm wavelength and its three harmonics occurring at 532Â nm, 355Â nm and 266Â nm, derived from an Nd-YAG laser. For the initial few exposures, the decontamination factor has been found to be highest when exposed to 1064Â nm radiation. With increasing number of exposures, however, the radiation with reducing wavelength assumes a more important role as a cleaning agent. The observation of almost no cleaning with 1064Â nm and much reduced cleaning with its harmonics when the contamination is deposited on a transparent substrate confirms the dominant role played by metal substrate towards expelling the loose particulates from its surface.
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Authors
J. Padma Nilaya, Pallavi Raote, Aniruddha Kumar, Dhruba J. Biswas,