Publication - Journal Article Shielding concepts for low-background proportional counter arrays in surface laboratories DOI https://doi.org/10.1016/j.apradiso.2015.12.033 Journal Article Applied Radiation and Isotopes, vol. 108, pp. 92-99, 2016 Authors C.E. Aalseth, P.H. Humble, E.K. Mace, J.L. Orrell, A. Seifert, R.M. Williams Language English