https://doi.org/10.1140/epja/i2016-16104-4
Regular Article - Experimental Physics
Independent isotopic yields in 25 MeV and 50 MeV proton-induced fission of natU
1
University of Jyvaskyla, Department of Physics, P.O. Box 35 (YFL), FI-40014, Jyväskylä, Finland
2
STUK - Radiation and Nuclear Safety Authority, P.O. Box 14, FI-00881, Helsinki, Finland
3
V. G. Khlopin Radium Institute, 194021, St. Petersburg, Russia
* e-mail: penttila@jyu.fi
Received:
18
August
2015
Revised:
4
December
2015
Accepted:
4
February
2016
Published online:
22
April
2016
Independent isotopic yields for elements from Zn to La in the 25 MeV proton-induced fission of 
were determined with the JYFLTRAP facility. In addition, isotopic yields for Zn, Ga, Rb, Sr, Zr, Pd and Xe in the 50 MeV proton-induced fission of were measured. The deduced isotopic yield distributions are compared with a Rubchenya model, the GEF model with universal parameters and the semi-empirical Wahl model. Of these, the Rubchenya model gives the best overall agreement with the obtained data. Combining the isotopic yield data with mass yield data to obtain the absolute independent yields was attempted. The result depends on the mass yield distribution.
© SIF, Springer-Verlag Berlin Heidelberg, 2016
