Abstract. This article presents a running experimental program to measure the neutron-induced deuteron break-up reaction between 5 and 10 MeV, and between 20 and 30 MeV. The measurements are performed with a C 6 D 6 detector as deuteron target placed in a beam line of the Tandem 7MV accelerator at Bruyères-le-Châtel, France, dedicated to the use of a 4π neutron detector which allows to measure the two emitted neutrons. This experimental work is done in parallel with an ab initio calculation of the reaction which is sum up in the text. Comparisons to the measured cross section are done together with CENDL2 and ENDF/B-VII evaluations.