The baseline charge stripper is a flowing windowless film of liquid lithium approximately 10 µm thick flowing at about 50 m/s. The lithium film system, conceived and developed at Argonne National Laboratory, was tested with a 65 kV, 4.6 mA proton beam from the FRIB-reconditioned LEDA (Los Alamos National Laboratory) ion source. The film successfully sustained more than 200 percent of the FRIB maximum volume power density deposition.

Work on the charge stripper took place at the Argonne Liquid metal EXperiment (ALEX) facility and included a joint team led by Dr. Nolen at the Physics Division and Dr. Reed at the Nuclear Engineering Division of Argonne National Laboratory.