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|Title:||Development of an experimental set-up for the measurement of neutron-induced fission and capture cross sections of radioactive fissile nuclei|
|Authors:||COMPANIS I.; AICHE Mourad; MATHIEU L.; SCHILLEBEECKX Peter; HEYSE JAN; BARREAU G.; CZAJKOWSKI C.; DUCASSE Q.; GUNSING F.; JURADO B.; KESSEDJIAN G.; MATARRANZ J.; PLOMPEN Arjan; TSEKHANOVICH I.|
|Citation:||EPJ Web of Conferences vol. 62 p. 1-4|
|Type:||Articles in periodicals and books|
|Abstract:||A new experimental set-up for a simultaneous measurement of neutron induced capture and fission cross sections was designed, assembled and optimized. The measurements will be performed at GEel LINear Accelerator (GELINA) neutron time-of-flight facility in Belgium, where neutron cross sections can be measured over a wide energy range with high energy resolution. The fission events detector consists of a dedicated multi-plate high efficiency fission ionization chamber (IC). The γ-rays produced in capture reaction are detected by an efficient array of C6D6 scintillators. Fission γ-rays events are distinguished from capture events by the anticoincidence signals from the IC and the C6D6 detectors. For the undetected fission events a correction has to be applied with respect to the efficiency of the IC that should be high and known with a high precision. Another important issue is the good separation between fission-fragment (FF) and the high alpha pile-up. The performances of the IC during test experiments are presented, focusing in particular on the detection efficiency.|
|JRC Directorate:||Health, Consumers and Reference Materials|
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