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Probing a cooled beam of decelerated highly-charged heavy ions extracted out of the ESR by a channeling experiment |
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| Authors: | H-Th Prinz D Dauvergne S Andriamonje K Beckert M Chevallier C Cohen J Dural H Eickhoff B Franzke H Geissel R Kirsch A L'Hoir PH Mokler R Moshammer F Nickel F Nolden JC Poizat H Reich J Remillieux F Sanuy C Scheidenberger D Schmaus M Steck Th Stöhlker M Toulemonde |
| Institution: | 1. Gesellschaft für Schwerionenforschung, D-64291, Darmstadt, Germany 2. Institut de Physique Nucléaire de Lyon, IN2P3/CNRS, Université, Claude Bernard Lyon-1, F-69622, Villeurbanne Cedex, France 3. Centre d'Etudes Nucléaires de Bordeaux-Gradignan/IN2P3, le Haut Vigneau, F-33175, Gradignan Cedex, France 4. Groupe de Physique des Solides, CNRS/URA017, Université Paris VII et Paris VI, F-75251, Paris Cedex 05, France 5. Centre Interdisciplinaire de Recherche avec les Ions Lourds, UMR11 CNRS/CEA, rue Claude Bloch, F-14040, Caen Cedex, France 6. Institut für Kernphysik der Universit?t Frankfurt, D-60486, Frankfurt, Germany |
| Abstract: | A cooled beam of decelerated highly-charged heavy ions is slowly extracted out of the cooler and storage ring ESR, by combining the deceleration technique and the charge exchange extraction mode. The quality of the external ion beam is tested by a channeling experiment. Bare Au79+ ions are injected into the ESR at an energy of 360 MeV/u, decelerated to 53 MeV/u, and finally cooled strongly in the electron cooler. By breeding of neighboring charge state ions via radiative recombination in the electron cooler H-like ions are produced. The H-like ion fraction is extracted out of the storage ring. This extracted Au78+ ion beam is probed by a channeling experiment measuring the extinction rate of the projectile Kα X-ray yield around the 110] axis of a thin silicon crystal. This revised version was published online in August 2006 with corrections to the Cover Date. |
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