Prompt fission γ-ray spectra characteristics - a first summary

In this work we give an overview of our investigations of prompt γ-ray emission in nuclear fission. This work was conducted during the last five years in response to a high priority nuclear data request formulated by the OECD/NEA. The aim was to reveal data deficiencies responsible for a severe under-prediction of the prompt γ heating in nuclear reactor cores. We obtained new prompt fission γ-ray spectral (PFGS) data for 252Cf(SF) as well as for thermal-neutron induced fission on 235U(nth,f) and 241Pu(nth,f). In addition, first PFGS measurements with a fast-neutron beam were accomplished, too. The impact of the new data and future data needs are discussed.

OBERSTEDT Stephan;  BILLNERT Robert;  GATERA Angelique;  GEERTS Wouter;  HALIPRE P.;  HAMBSCH Franz-Josef;  LEBOIS M.;  OBERSTEDT Andreas;  MARINI P.;  VIDALI Marzio;  WILSON J. N.; 

2017-01-11

ELSEVIER BV

JRC105030

1875-3892,   

http://www.sciencedirect.com/science/article/pii/S1875389215001273,    https://publications.jrc.ec.europa.eu/repository/handle/JRC105030,   

10.1016/j.phpro.2015.04.011,