Evaluating laser-driven Bremsstrahlung radiation sources for imaging and analysis of nuclear waste packages

JOURNAL OF HAZARDOUS MATERIALS

卷:318

Article

Jones, Christopher P.¹  Brenner, Ceri M.²  Stitt, Camilla A.¹  Armstrong, Chris^2,3  Rusby, Dean R.^2,3  Mirfayzi, Seyed R.⁴  Wilson, Lucy A.²  Alejo, Aaron⁴  Ahmed, Hamad⁴  Allott, Ric²  Butler, Nicholas M. H.³  Clarke, Robert J.²  Haddock, David²  Hernandez-Gomez, Cristina²  Higginson, Adam³  Murphy, Christopher⁵  Notley, Margaret²  Paraskevoulakos, Charilaos¹  Jowsey, John⁶  McKenna, Paul³  Neely, David²  Kar, Satya⁴  Scott, Thomas B.¹ 

[1] HH Wills Phys Lab, Interface Anal Ctr, Tyndall Ave, Bristol BS8 1TL, Avon, England

[2] Rutherford Appleton Lab, STFC, Cent Laser Facil, Didcot OX11 0QX, Oxon, England

[3] Univ Strathclyde, SUPA, Dept Phys, Glasgow G4 0NG, Lanark, Scotland

[4] Queens Univ Belfast, Ctr Plasma Phys, Belfast BT7 1NN, Antrim, North Ireland

[5] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[6] Sellafield Ltd, Ground Floor North B582, Seascale CA20 1PG, Cumbria, England

关键词: Laser;    X-ray;    Radiography;    Corrosion;    Nuclear;   

DOI  :  10.1016/j.jhazmat.2016.07.057

来源: Elsevier

【 摘 要 】

A small scale sample nuclear waste package, consisting of a 28 mm diameter uranium penny encased in grout, was imaged by absorption contrast radiography using a single pulse exposure from an X-ray source driven by a high-power laser. The Vulcan laser was used to deliver a focused pulse of photons to a tantalum foil, in order to generate a bright burst of highly penetrating X-rays (with energy >500 keV), with a source size of <0.5 mm. BAS-TR and BAS-SR image plates were used for image capture, alongside a newly developed Thalium doped Caesium Iodide scintillator-based detector coupled to CCD chips. The uranium penny was clearly resolved to sub-mm accuracy over a 30 cm(2) scan area from a single shot acquisition. In addition, neutron generation was demonstrated in situ with the X-ray beam, with a single shot, thus demonstrating the potential for multi-modal criticality testing of waste materials. This feasibility study successfully demonstrated non-destructive radiography of encapsulated, high density, nuclear material. With recent developments of high-power laser systems, to 10 Hz operation, a laser-driven multi -modal beamline for waste monitoring applications is envisioned. (C) 2016 Published by Elsevier B.V.

【 授权许可】

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