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|Title:||First experimental prompt γ-ray spectra in fast neutron-induced fission of 238U|
|Authors:||LABORIE J.-M.; BELIER G.; TAIEB J.; OBERSTEDT A.; OBERSTEDT STEPHAN|
|Citation:||EPJ Web of Conferences vol. 146 p. 04032|
|Type:||Articles in periodicals and books|
|Abstract:||The knowledge of prompt fission γ-ray emission has been of major interest in reactor physics since few years, but it is also important in the understanding of the fission process. We present here measurements of prompt γ-ray spectra emitted in the fission of 238U. A simple experimental method was used to measure the prompt fission gamma-ray spectrum up to 10 MeV. In this approach, the gamma-rays are measured with a bismuth germanate (BGO) detector which offers two significant advantages with respect to other gamma-ray detectors: a high peak-to-total ratio and a high efficiency. The prompt fission neutrons are rejected by the time-of-flight technique between the BGO detector and a fission trigger given by a fission chamber. Prompt fission gamma-ray spectra were measured for 1.7, 5.2 and 15.6 MeV incoming neutron energies at the CEA, DAM, DIF Van de Graaff accelerator.|
|JRC Directorate:||Nuclear Safety and Security|
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