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. 2012 Feb 20;7(2):e31402. doi: 10.1371/journal.pone.0031402

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Beattie et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Curves are the modeled efficiencies for β-particle produced CR as a function of refractive index assuming β cross-section properties and density of water. Efficiencies are in photons within the 550 to 570 nm range per disintegration. The X's used the β cross section properties of biological tissue. (A) and (B) list different radionuclides. Note - Ac-225+ denotes Ac-225 plus its daughters in transient equilibrium.