Georgy Vorobjev

  • Citations Per Year
Learn More
The masses of six neutron-deficient rare holmium and thulium isotopes close to the proton drip line were determined with the SHIPTRAP Penning trap mass spectrometer. For the first time the masses of the proton-unbound isotopes 144,145Ho and 147,148Tm were directly measured. The proton separation energies were derived from the measured mass values and(More)
The electron beam ion source MAXEBIS, developed and built at the University of Frankfurt, has been installed at GSI to serve as an offline test ion source for the HITRAP project and for use as a test setup for charge breeding explorations. The setup has been equipped with new diagnostics and beam optics devices. Two ion sources dedicated to the production(More)
At the GSI accelerator complex, using the universal linear accelerator UNILAC and the synchrotron SIS, highly-charged ions up to U are produced by passing a 400 MeV/u beam through a gold foil stripping off all or nearly all electrons. The HITRAP facility is built to decelerate those ions to almost rest and to provide them to the experiments [1]. First, the(More)
Nuclides in the vicinity of 94Ag have been studied with the Penning trap mass spectrometer JYFLTRAP at the Ion-Guide Isotope Separator On-Line. The masses of the two-proton-decay daughter 92Rh and the beta-decay daughter 94Pd of the high-spin isomer in 94Ag have been measured, and the masses of 93Pd and 94Ag have been deduced. When combined with the data(More)
The electron beam ion source MAXEBIS from Frankfurt University has been installed in a test beam setup at GSI to deliver highly charged ions for HITRAP [1] and to serve for charge state breeding experiments. Two ion sources dedicated to the production of singly charged ions for external ion injection have been connected to a so-called multi passage(More)
Nuclei close to the N = Z line in the region near A = 80 play a special role in nuclear astrophysics since the rapid proton (rp) capture process is passing right through them (see Fig. 1). The rp-process, a sequence of rapid proton captures and β-decays, proceeds along the N = Z line up to Ni and it can continue ending in a SnSbTe cycle either in explosive(More)
For the first time, a small room-temperature electron beam ion trap (EBIT), operated with permanent magnets, was successfully used for charge breeding experiments. The relatively low magnetic field of this EBIT does not contribute to the capture of the ions; single-charged ions are only caught by the space charge potential of the electron beam. An(More)
Electron Beam Ion Sources and Traps (EBIS/T) of the Dresden EBIS/T type have been proven to be efficient and reliable sources of highly charged ions in many applications [1]. At GSI, a Dresden EBIT named SPARC-EBIT is currently being installed as an ion injector at the HITRAP facility. It will serve as an off line ion source for test runs and experiments.(More)