Related Experiment Video
Updated: Jul 26, 2026

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films
Published on: November 9, 2015
Nuclear data used in the analysis of thorium in the workplace
S A Woods1, D K Tyler, M J Woods
1National Physical Laboratory Teddington, Middlesex, UK. simon.woods@npl.co.uk
Abstract:
The analysis of thorium in the workplace can be achieved using a variety of metrological techniques. The uncertainty on the final measured values will include components that arise from the uncertainties in the nuclear data that are used. These data include half-lives, branching ratios and gamma ray emission probabilities. It is important that a common, consistent and reliable data set is used in order to minimise the potential differences between analytical results. With particular reference to the problems associated with thorium analysis, some of the various sources of nuclear data are discussed and a recommended set of data is proposed.
Related Concept Videos
Radioactivity and Nuclear Equations
A nuclide of an element has a specific number of protons and...
Nuclear Stability
To hold positively charged protons together in the...
Radioactive Decay and Radiometric Dating
Nuclear Fission
Nuclear Power
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Nuclear Transmutation

