Analysis of contaminated nuclear plant steel by laser-induced breakdown spectroscopy

JOURNAL OF HAZARDOUS MATERIALS

卷:345

Article

Lang, Adam^1,2  Engelberg, Dirk²  Smith, Nicholas T.^3,4,5  Trivedi, Divyesh^3,5  Horsfall, Owen^3,5  Banford, Anthony^3,5  Martin, Philip A.⁵  Coffey, Paul⁵  Bower, William R.¹  Walther, Clemens⁶  Weiss, Martin⁶  Bosco, Hauke⁶  Jenkins, Alex⁷  Law, Gareth T. W.^1,4 

[1] Univ Manchester, Sch Chem, Ctr Radiochem Res, Oxford Rd, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Sch Mat, Corros & Protect Ctr, Mat Performance Ctr, Oxford Rd, Manchester M13 9PL, Lancs, England

[3] Natl Nucl Lab, Chadwick House,Warrington Rd,Birchwood Pk, Warrington WA3 6AE, Cheshire, England

[4] Univ Manchester, Sch Earth & Environm Sci, Reseach Ctr Radwaste Disposal, Oxford Rd, Manchester M13 9PL, Lancs, England

[5] Univ Manchester, Sch Chem Engn & Analyt Sci, Oxford Rd, Manchester M13 9PL, Lancs, England

[6] Leibniz Univ Hannover, Inst Radioecol & Radiat Protect, Herrenhauser Str 2, D-30419 Hannover, Germany

[7] Sellafield Ltd, Decontaminat Ctr Expertise, Sellafield CA20 1PG, Cumbria, England

关键词: LIBS;    Contaminated stainless steel;    Decommissioning;    Strontium;    Cesium;   

DOI  :  10.1016/j.jhazmat.2017.10.064

来源: Elsevier

【 摘 要 】

Laser Induced Breakdown Spectroscopy (LIBS) has the potential to allow direct, standoff measurement of contaminants on nuclear plant. Here, LIBS is evaluated as an analytical tool for measurement of Sr and Cs contamination on type 304 stainless steel surfaces. Samples were reacted in model acidic (PUREX reprocessing) and alkaline (spent fuel ponds) Sr and Cs bearing liquors, with LIBS multi-pulse ablation also explored to measure contaminant penetration. The Sr II (407.77 nm) and Cs I (89435 nm) emission lines could be separated from the bulk emission spectra, though only Sr could be reliably detected at surface loadings >0.5 mg cm(-2). Depth profiling showed decay of the Sr signal with time, but importantly, elemental analysis indicated that material expelled from LIBS craters is redistributed and may interfere in later laser shot analyses. (C) 2017 The Authors. Published by Elsevier B.V.

【 授权许可】

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