The first cooled beams from JYFL ion cooler and trap project Original Research Article

A ion manipulation scheme employing a linear radiofrequency quadrupole and a Penning trap is described. It provides means to improve emittance, cool, bunch and mass-purify the existing ion beams from an Ion Guide Isotope Separator while preserving its fast operation. The ion beam cooler is operational and capable to cool ion beam down to eV regime in few ms with at least 60 percent transmission.