Ladies and Gentlemen, Let me give you a short outlook to the operating of the new facility at this point. My colleague has just shown you, how we operate the present GSI accelerators. In the new facility, we will have 5 new ring accelerators, and some of these will run for several seconds or even minutes without any interaction with the rest of the machine. I am going to demonstrate in a short animation, how this will enable us in the planned facilities to go qualitatively beyond the beam sharing that we practise presently. In the future facility we will have a real parallel operation, providing 100% beam for each of several experiments, up to 350% total. You‘ll see an operating mode, where four experiments will run in parallel. First, I will show you in this schematic view of the new facility, how each of these experiments would use the accelerators, if it were run exclusively. Afterwards, the parallel operation will be demonstrated.

Ions for RIB experiments The existing accelerators, UNILAC and SIS18, are shown here in the upper left corner. They serve as injector for SIS100.

Ions for RIB experiments

Ions for RIB experiments: storage rings For storage ring experiments, the ions are compressed into one short bunch. This is then ejected and lead onto a target, where it produces fragments. The Super Fragment Separator selects one isotope, which can be investigated in the storage rings.

Ions for RIB experiments: fixed target A second way to investigate the structure of rare nuclei is to collide them with another target. For this kind of experiments, an almost continuous beam can be extracted from SIS200. The SIS200 is regularly refilled, but only a short interruption of the beam is necessary for this process.

Ions for RIB experiments: fixed target

Ions for RIB experiments: fixed target

Ions for RIB experiments: fixed target When SIS200 is needed for other experiments, the fixed target RIB experiment can also be served from SIS100.

Ions for RIB experiments: fixed target (Zweiter Durchlauf der Animation)

Ions for Nuclear Collisions For the study of compressed, dense hadronic matter, the ions are accelerated to the highest energies in SIS200. Afterwards, they are slowly extracted in a very long spill. During that time, only SIS200 is occupied, all other rings are idle and therefore, they may be used for other experiments without affecting the Nuclear Collisions experiment.

Ions for Plasma Physics

Ions for Plasma Physics (Zweiter Durchlauf Akkumulation)

Ions for Plasma Physics For plasma physics, ions will be accumulated in SIS100. Then the ions will be accelerated and compressed into a short bunch. A second beam from SIS18 may be sent to the plasma physics target at exactly the same time. CR

Protons and Antiprotons For the study of hadronic matter, antiproton beams will be produced. For this purpose, a proton beam is injected into SIS100 and accelerated.

Protons and Antiprotons At the target, it produces antiprotons, which are collected and cooled in the CR and then accumulated in the NESR. The cooling process requires a few seconds; during this time, the synchrotrons would be idle, if the facility would be used for antiprotonphysics exclusively.

Protons and Antiprotons (Dritter Durchlauf)

Protons and Antiprotons (Dritter Durchlauf)

Protons and Antiprotons

Protons and Antiprotons After cooling and accumulation in the NESR, the antiprotons are fed back into SIS100, accelerated and then fed into the HESR, where the experiments are run.

Protons and Antiprotons (Standbild HESR)

Parallel Operation In the following animation, the „idle“ times of SIS18 and SIS100 are filled with other experiments. This will enable us, to run all four experiments in parallel with a minimum of loss in integrated beam time for each of the experiments. With one filling of SIS200, nucleon nucleon collisions run on while antiprotons are accumulated in NESR... ... And fixed target experiments behind the SuperFRS are carried out. From time to time, the plasma physics experiment gets a shot... ... And the HESR is refilled.

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation

Parallel Operation