Simulation of radiation damage via alpha decay in BFS:PC grouts using 4He2+ ion acceleration
نویسندگان
چکیده
The impact of alpha radiation on cements used to encapsulate intermediate-level waste (ILW) is not well understood. ILW wastes can contain high levels alpha-emitting radionuclides, meaning that the grouts them are exposed significant ionising radiation. Thus, a damaged region could develop in grout adjacent species. This work attempted recreate this behaviour through nonradioactive 4He2+ ion-accelerator experiments, which have previously been applied common encapsulation grouts. influence irradiation slag-Portland cement was investigated at different ages via transmission electron microscopy energy-dispersive x-ray spectroscopy (TEM-EDX) and supporting techniques, assess whether caused textural or chemical zonation. No changes hydrate phases textures were observed, other than minor variations associated with carbonation. paper provides proof concept for using ion acceleration techniques furthers knowledge their response.
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ژورنال
عنوان ژورنال: Cement and Concrete Research
سال: 2022
ISSN: ['0008-8846', '1873-3948']
DOI: https://doi.org/10.1016/j.cemconres.2022.106895