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An Electron Beam Ion Source charge breeder has been in operation at Argonne National Laboratory since 2017 and has been delivering radioactive ions for the ATLAS experimental program. Single charge state efficiencies average 16% with the radioactive species accounting for up to 99% of the beam incident on target. The electron beam collector which was repaired in early 2019 continues to perform well demonstrating the long term viability of the electroforming process. To better discriminate Mo-106 and Tc-106, an MR-TOF was incorporated into the charge breeding operation with no observed degradation in performance. As part of a study of the simultaneous transport of two beam species, a gas leak valve was installed on the source to produce a Xe-132 beam simultaneously with a Cs-133 beam. The trap emptying process has been studied in order to elongate the extracted pulse with pulse widths up to 14 ms during 10 Hz operation.
This work was supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357 and used resources of ANL’s ATLAS facility, an Office of Science User Facility