Title: Towards high accurate neutron-induced fission cross sections of 240,242Pu: Spontaneous fission half-lives
Authors: SALVADOR CASTINEIRA PAULABRYS TOMASZEYKENS RogerHAMBSCH Franz-JosefMOENS AndreOBERSTEDT StephanPRETEL C.SIBBENS GoedeleVANLEEUW DAVIDVIDALI Marzio
Citation: EPJ Web of Conferences vol. 62 p. 08001
Publisher: EDP Sciences
Publication Year: 2013
JRC N°: JRC88594
ISSN: 2100-014X
URI: http://dx.doi.org/10.1051/epjconf/20136208001
http://publications.jrc.ec.europa.eu/repository/handle/JRC88594
DOI: 10.1051/epjconf/20136208001
Type: Articles in periodicals and books
Abstract: Fast spectrum neutron-induced fission cross sections of transuranic isotopes are being of special demand in order to provide accurate data for the new GEN-IV nuclear power plants. To minimize the uncertainties on these measurements accurate data on spontaneous fission half-lives and detector efficiencies are a key point. High -active actinides need special attention since the misinterpretation of detector signals can lead to low efficiency values or underestimation in fission fragment detection. In that context, 240,242Pu isotopes have been studied by means of a Twin Frisch-Grid Ionization Chamber (TFGIC) for measurements of their neutron-induced fission cross section. Gases with different drift velocities have been used, namely P10 and CH4. The detector efficiencies for both samples have been determined and improved spontaneous fission half-life values were obtained.
JRC Directorate:Health, Consumers and Reference Materials

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