New stopping cell capabilities: RF carpet performance at high gas density and cryogenic operationM. Ranjan, S. Purushothaman, T. Dickel, H. Geissel, W. R. Plass, D. Schäfer, C. Scheidenberger, J. Van de Walle, H. Weick and P. DendoovenEPL, 96 5 (2011) 52001DOI: https://doi.org/10.1209/0295-5075/96/52001