The thermal neutron capture cross section of 129IT. Belgya1, O. Bouland2, G. Noguere2, A. Plompen3, P. Schillebeeckx3 and L. Szentmiklósi1
1 Institute of Isotopes Hungarian Academy of Sciences, P.O. Box 77, 1525 Budapest, Hungary
2 CEA Cadarache, DEN/CAD/DER/SPRC/LEPh, 13108 Saint-Paul-lez-Durance, France
3 EC-JRC, IRMM, Neutron Physics Unit, 2440 Geel, Belgium
Published online: 21 May 2008
The thermal neutron capture cross section of 129I Long Lived Fission Product is determined from chopped cold neutron beam experiments preformed at the PGAA facilities of the Institute of Isotopes. The new experimental value is more precise than the earlier values and is in agreement with recent results of Nakamura et al. and fits well to the differential cross section measurements of Noguere et al. A detailed description of the analysis is given.
© CEA 2008