Method Developing and Testing for Inelastic Scattering Measurements at the GELINA Facility

作者：Plompen A^*; Nankov N; Rouki C; Stanoiu M; Borcea C; Deleanu D; Negret A; Dessagne P; Kerveno M; Rudolf G; Thiry J C; Mosconi M; Nolte R

来源：Journal of the Korean Physical Society, 2011, 59(2): 1581-1584.

DOI：10.3938/jkps.59.1581

• Neutron inelastic scattering
• Fluence measurement

Accurate inelastic scattering measurements are of interest to improving modelling and simulation of advanced reactor systems through better nuclear data (OECD-NEA, High priority request list for nuclear data http://www.nea.fr/html/dbdata/hprl/). Two setups are available at IRMM for measurements of inelastic scattering with the (n, n'gamma)-technique. The first the GAINS gamma-array for inelastic neutron scattering at a 200 m station consists of eight high purity germanium detectors, has high incident neutron energy resolution and is therefore tailored for inelastic scattering measurements. The second, at a 30 in station was developed by IPHC with the purpose of studying actinides for the Th/U cycle and emphasizing besides (n, n'gamma) also (n, 2n gamma) reactions. In the recent past a number of efforts were started to investigate the uncertainties and corrections required to obtain reliable results and to investigate the limits of accuracy of this technique. A joint effort is described that has led to an improved understanding of the fission chambers used. In particular, the important corrections to the efficiency for fission fragment loss were investigated.

• 出版日期2011-8-11