Investigating solid α-15N2 as a new source of ultra-cold neutrons D. J. Salvat, E. Gutsmiedl, C.-Y. Liu, P. Geltenbort, A. Orecchini, S. Paul and H. Schober EPL, 103 1 (2013) 12001 Published online: 08 July 2013 DOI: 10.1209/0295-5075/103/12001