R&D of a SIMPLE bubble chamber for dark matter searches M. Felizardo, T.A. Girard, I. Lazaro, A.C. Fernandes, T. Morlat, J.G. Marques and A. Kling E3S Web Conf., 12 (2016) 03002 Published online: 05 December 2016 DOI: 10.1051/e3sconf/20161203002