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EPJ A - Hadrons and Nuclei
Hadrons and Nuclei


Eur. Phys. J. A 14, 365-370 (2002)
DOI: 10.1140/epja/i2002-10013-1

Yields of neutron-rich isotopes around $\mth{Z=28}$ produced in 30 MeV proton-induced fission of $\chem{^{238}U}$

K. Kruglov1, A. Andreyev2, B. Bruyneel1, S. Dean1, S. Franchoo3, M. Górska4, K. Helariutta4, M. Huyse1, Yu. Kudryavtsev1, W.F. Mueller5, N.V.S.V. Prasad1, R. Raabe6, K.-H. Schmidt4, P. Van Duppen1, J. Van Roosbroeck1, K. Van de Vel1 and L. Weissman5

1  Instituut voor Kern- en Stralingsfysica, University of Leuven, Celestijnenlaan 220D, B-3001 Leuven, Belgium
2  University of Liverpool, UK
3  CERN-ISOLDE, Switzerland
4  GSI, D-64291, Darmstadt, Germany
5  MSU, East Lansing, MI, USA
6  CEA, Saclay, France

Kirill.krouglov@fys.kuleuven.ac.be
K.h.schmidt@gsi.de

(Received: 11 February 2002 / Revised version: 25 April 2002 Communicated by J. Äystö)

Abstract
Heavy $\chem{^{65\mbox{-}70}Co}$, $\chem{^{68\mbox{-}74}Ni}$, $\chem{^{70\mbox{-}76}Cu}$ and $\chem{^{74\mbox{-}81}Ga}$ isotopes were produced at the LISOL facility by means of 30 MeV proton-induced fission of $\chem{^{238}U}$. Production rates were deduced and compared to two types of cross-section calculations: the empirical model (V. Rubchenya, private communication) and the PROFI code. Comparison with experimental data favors the latter model. Yields using different beam-target combinations and different energies are calculated and discussed.

PACS
24.10.-i - Nuclear-reaction models and methods.
24.75.+i - General properties of fission.
25.85.Ge - Charged-particle-induced fission.
29.25.Rm - Sources of radioactive nuclei.

© Società Italiana di Fisica, Springer-Verlag 2002

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