https://doi.org/10.1140/epja/i2009-10856-8
Regular Article - Experimental Physics
Production cross-sections of neutron-rich Pb and Bi isotopes in the fragmentation of 238U
1
Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
2
IPN Orsay, Campus Paris XI, F-91406, Orsay, France
3
GSI, Planckstrasse 1, D-64291, Darmstadt, Germany
4
University of Washington, Box 354290, 98195, Seattle, WA, USA
5
CENBG, F-33175, Gradignan, France
6
GANIL, 14076, Caen Cedex 5, France
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
3
February
2009
Revised:
25
June
2009
Accepted:
7
July
2009
Published online:
7
August
2009
Abstract
Neutron-rich lead and bismuth isotopes have been produced by cold-fragmentation reactions induced by 238U projectiles at 1A GeV impinging on a beryllium target. The high-resolving power FRagment Separator (FRS) at GSI allowed us to identify and determine the production cross-sections of 43 nuclei, nine of them for the first time ( 216, 217, 218, 219Pb and 219, 220, 221, 222, 223Bi . These data are compared to other previously measured cross-sections in similar reactions and model calculations.
Present address: CUPP project, P.O. Box 22, FIN-8680, Pyhäsalmi, Finland
Present address: University of Liverpool, Oliver Lodge Lab., Oxford street, Liverpool, L69 7ZE, UK
Present address: Forschungszentrum Rossendorf, Postfach 510119, 01314, Dresden, Germany
Present address: LPC Caen, ENSICAEN, Universitè de Caen, CNRS/IN2P3, F-14050, Caen Cedex 4, France
Present address: NSCL, Michigan State University, East Lansing, MI, 48824, USA
Present address: INRNE, 72 Tzarigradsko chausee, BG-1784, Soa, Bulgaria
© SIF, Springer-Verlag Berlin Heidelberg, 2009
