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Output details

13 - Electrical and Electronic Engineering, Metallurgy and Materials

University of Sheffield : B - Materials Science and Engineering

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Article title

Real-Time Gamma Imaging of Technetium Transport through Natural and Engineered Porous Materials for Radioactive Waste Disposal

Type

D - Journal article

DOI

10.1021/es402718j

Title of journal

Environmental Science & Technology

Article number

Volume number

n/a

Issue number

First page of article

n/a

ISSN of journal

1520-5851

Year of publication

2013

URL

Number of additional authors

Additional information

A new approach to rapid, non-invasive, imaging of radionuclide transport in porous materials, is described. The technique is utilised to show that cement barriers do not effectively retard the transport of oxidised technetium-99 (a long lived fission product). These results provide key evidence to support the assumption of unimpeded transport of oxidised technetium in the current UK safety case for radioactive waste disposal. In collaboration with the Radioactive Waste Management Directorate, this new approach is exploited in three projects to improve radionuclide retention in cement barriers (EP/L014041/1, £518k; NNL iCASE, ~£80k; University of Sheffield Fellowship, ~£300k).

Interdisciplinary

Cross-referral requested

Research group

None

Proposed double-weighted

Double-weighted statement

Reserve for a double-weighted output

Non-English

English abstract