A polarized atomic-beam target for COSY-Juelich
- Institut fuer Strahlen- und Kernphysik Universitaet Bonn, D-53115 Bonn (Germany)
- Institut fuer Kernphysik, Forschungszentrum Juelich, D-52425 (Germany)
An atomic-beam target (ABT) for the EDDA experiment has been built in Bonn and was tested for the very first time at the cooler synchrotron COSY. The ABT differs from the polarized colliding-beams ion source for COSY in the DC-operation of the dissociator and the use of permanent 6-pole magnets. At present the beam optics of the ABT is set-up for maximum density in the interaction zone, but for target-cell operation it can be modified to give maximum intensity. The modular concept of this atomic ground-state target allows to provide all vector- (and tensor) polarizations for protons and deuterons, respectively. Up to now the polarization of the atomic-beam could be verified by the EDDA experiment to be > or approx. 80% with a density in the interaction zone of > or approx. 10{sup 11} atoms/cm{sup 2}.
- OSTI ID:
- 21182448
- Journal Information:
- AIP Conference Proceedings, Vol. 421, Issue 1; Conference: 7. international workshop on polarized gas targets and polarized beams, Urbana, IL (United States), 18-22 Aug 1997; Other Information: DOI: 10.1063/1.55009; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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