Congratulations to Guelph Ph.D. students Andrew MacLean and Christina Burbadge who were awarded first (U.S. $300) and second (U.S. $200) prizes for the top two posters presented at the International Conference on Advances in Radioactive Isotope Science (ARIS 2017) held in Keystone, Colorado from May 28 - June 2, 2017.  ARIS [1], held every three years, is one of the major research conferences in the field and was attended by approximately 300 delegates from 23 countries.  Andrew and Christina's posters were selected as the top two contributions from more than 120 posters presented at the conference.