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ARD - Accelerator Research and Development

The IKP-4 performs research on mainly 3 topics within the framework of the Helmholtz-Group program ARD: Electron Cooling, Defelctor Development for Storage Rings that can be used to test the electric dipole moment of ligth hadrons and finally new ion sources for hadron accelerators.

A new 2MeV Electron Cooler has been developed and build at the Budker-Institute in Novosibirsk. It is currently installed in COSY to investigate the cooling performance on the COSY beam. A similar Electron Cooler could be used as injection cooler for HESR. To extend its range of operation up to HESR maximum energy the acceleration voltage of the electrons would have to be increased from 2MV to 8MV.

We are also preparing to investigate the Electric Dipole Moment of hadrons within the JEDI (Jülich Electrical Dipole Moment Investigation) collaboration. To measure this quantity we need to develope and construct deflectors that have minimal influence on the beam particle's spin. These defelctors need to be able to provide precise knowledge about direction and magnitude of the deflecting electric and magnetic fields. In addition a so called Sibirian Snake, a superconducting solenoid, has recently been installed in COSY. Its interaction with the beam and the particle's spin will be studied soon.

For the commissioning of the ELENA ring at CERN and for detector test at this ring we are building a 100 keV H--Source. ELENA is supposed to store antiprotons and decelerate them to about 1.5% of the speed of light. This allows direct comparisons of matter and anti-matter. Note: When antiprotons are produced they are moving with about 97% of the speed of light. To compare: On the way back from the moon to earth the Apollo-10-spacecraft reached 40000km/h, which is just 0.37% of the speed of light.


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