کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6970261 | 1453042 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluating laser-driven Bremsstrahlung radiation sources for imaging and analysis of nuclear waste packages
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
A small scale sample nuclear waste package, consisting of a 28Â 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 >500Â keV), with a source size of <0.5Â 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 30Â cm2 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 10Â Hz operation, a laser-driven multi-modal beamline for waste monitoring applications is envisioned.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 318, 15 November 2016, Pages 694-701
Journal: Journal of Hazardous Materials - Volume 318, 15 November 2016, Pages 694-701
نویسندگان
Christopher P. Jones, Ceri M. Brenner, Camilla A. Stitt, Chris Armstrong, Dean R. Rusby, Seyed R. Mirfayzi, Lucy A. Wilson, Aarón Alejo, Hamad Ahmed, Ric Allott, Nicholas M.H. Butler, Robert J. Clarke, David Haddock, Cristina Hernandez-Gomez,