Abstract:

"Status of the TRImP facility at Groningen -
Trapped  Radioactive Isotopes as microlaboratories for fundamental Physics"

Klaus Jungmann, KVI, University of Groningen, The Netherlands

At the Kernfysisch Versneller Instituut in Groningen, a new Facility has been set up
since 2001 which aims to produce a braod spectrum of radioactive isotopes and to
trap them in ion or atom traps for precision experiments. The facility is nearing its completion.
It uses (heavy) ion beams of the K600 superconducting cyclotron AGOR to produce
radioactive nuclei in direct, fusion and evaporation and  fragmentation reactions. A magnetic
double separator separates the wanted isotopes from the primary beam and unwanted reaction
products. The secondary beam is stoped in a themal ionizing device and transported as singly charged
ions to the experimental stations through a radiofrequency (cooler and ) buncher. They can
be neutralized and trapped in neutral atom traps.  The loacl research program
is focussed on precision measurements of neutrino-beta correlations in nuclear beta deacy and on the
search for a permanent electric dipole moment in Radium atoms. The facility invites outside users
and has already performed user experiments with astrophysical background.