Berlin 2005 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 11: Physik mit schweren Ionen

HK 11.7: Talk

Friday, March 4, 2005, 18:45–19:00, TU MA042

Systematic study of spallation reactions in inverse kinematics at the FRS at GSI. — •Maria Valentina Ricciardi¹, P. Armbruster¹, J. Benlliure^1,2, M. Bernas³, A. Boudard⁴, E. Casarejos², S. Casarejos⁵, T. Enqvist¹, B. Fernandez⁴, A. Kelic¹, S. Leray⁴, P. Napolitani^1,3, J. Pereira², F. Rejmund^1,3, K.-H. Schmidt¹, C. Stéphan³, J. Taieb^1,3, L. Tassan-Got³, C. Villagrasa⁴, C. Volant⁴, W. Wlazlo⁴, and O. Yordanov¹ — ¹GSI Darmstadt, Germany — ²Univ. Santiago de Compostela, Spain — ³IPN Orsay, France — ⁴DAPNIA / SPhN CEA / Saclay, France — ⁵CEN Bordeaux, France

In 1996, at GSI, Darmstadt, a European collaboration started a dedicated experimental program to investigate spallation reactions. Spallation residues and fission fragments from ²³⁸U, ²⁰⁸Pb, ¹⁹⁷Au, ¹³⁶Xe and ⁵⁶Fe projectiles, in the energy range 200-1500 MeV per nucleon, irradiating liquid ^1,2H targets were studied with the FRagment Separator for magnetic selection of reaction products including ray-tracing, energy-loss and ToF techniques. All nuclides were fully identified, and from the longitudinal-momentum evaporation residues and fission fragments could be separated. For almost all the produced nuclides, production cross-sections and velocity distributions were determined. These results provided an important insight into the physics of these reactions. In addition, these data are relevant for the design of ADS and RIBs facilities.