Status of the ESR and Prospects for Radioactive Ion Beams
This contribution presents the status of the Experimental Storage Ring ESR at GSI after nearly 10 years of experiments with electron-cooled primary and secondary heavy ion beams, and discusses possible upgrades for the near future. The major fraction of the ESR beam time was dedicated to atomic spectroscopy experiments with fully stripped or few-electron heavy ions up to uranium. Remarkable nuclear physics results came, so far, mainly from the precise Schottky mass spectrometry with cooled radioactive fragments. The experimental program of a future--very likely modified--ESR aims at nuclear physics experiments with secondary, neutron-rich or neutron-deficient nuclides with lifetimes in the order of 1 s. Luminosities of up to 1{times}10{sup 29} cm{sup {minus}2}s{sup {minus}1} for collisions with protons of an internal H{sub 2} target and up to 1{times}10{sup 28} cm{sup {minus}2}s{sup {minus}1} for electron-nucleus interactions in the collider mode will be required. These values might b e in reach by improving both the collection efficiency and the cooling speed for the secondary nuclei and by further increasing the primary beam intensity at the heavy ion accelerator complex UNILAC/SIS.
- Research Organization:
- Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (DE)
- Sponsoring Organization:
- None (US)
- OSTI ID:
- 784301
- Report Number(s):
- ISBN 1-56396-928-9; ISSN 0094-243X; CODEN APCPCS; ISBN 1-56396-928-9; ISSN 0094-243X; CODEN APCPCS; TRN: US0106052
- Resource Relation:
- Conference: Nuclear Physics at Storage Rings: Fourth International Conference: STORI99, Bloomington, IN (US), 09/12/1999--09/16/1999; Other Information: PBD: 31 Dec 2000
- Country of Publication:
- United States
- Language:
- English
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