Measurement of light-ion production at the new Uppsala neutron beam facilityM. Hayashi1, Y. Watanabe1, R. Bevilacqua2, J. Blomgren2, L. Nilsson2, A. Öhrn2, M. Österlund2, S. Pomp2, A. Prokofiev3, V. Simutkin2, P.A. Söderström2 and U. Tippawan4
1 Department of Advanced Energy Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
2 Department of Neutron Research, Uppsala University, P.O. Box 525, 751 20 Uppsala, Sweden
3 The Svedberg Laboratory, Uppsala University, P.O. Box 533, 751 21 Uppsala, Sweden
4 Fast Neutron Research Facility, Chiang Mai University, P.O. Box 217, Chiang Mai 500200, Thailand
Published online: 21 May 2008
A collaborative research project has been launched on neutron-induced light-ion production measurements using the new Uppsala neutron beam facility. The available energy range of quasi mono-energetic neutron beams is extended up to 175 MeV. Double-differential cross sections (DDXs) of light-ion production (p, d, t, 3He, and α) are measured using a conventional spectrometer system which consists of eight counter telescopes. Each telescope is composed of two silicon surface barrier detectors as the ΔE detectors and a CsI(Tl) scintillator as the E detector. Response of the scintillators to 160 MeV protons is measured to test the performance. The measured response is reproduced well by a PHITS transport calculation. The DDXs of light-ion production are measured for Ca at 94 MeV and C at 175 MeV at angles between 20° to 160° in steps of 20°. The preliminary experimental (n,xp) data are shown in comparison with a model calculation using the TALYS code and the evaluated cross sections in the JENDL high-energy file.
© CEA 2008