Open Access
ND 2007
Article Number 118
Number of page(s) 4
Section Facilities and experimental techniques
Published online 17 June 2008
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07394

Design study for a new spallation target of the n_TOF facility at CERN

C. Carrapiço1, S. Andriamonje2, E. Berthoumieux2, I.F. Gonçalves1, F. Gunsing2, A. Mengoni3, P. Vaz1, V. Vlachoudis3 and the n_TOF collaboration4

1  Instituto Tecnológico e Nuclear(ITN), Lisbon, Portugal
2  CEA/Saclay - DSM/DAPNIA, Gif-sur-Yvette, France
3  CERN, Geneva, Switzerland

Published online: 21 May 2008

The n_TOF facility is a time of flight spectrometer dedicated to measuring neutron capture and fission cross sections. The neutron source consists on a lead target bombarded by a high energetic proton beam. After finishing a successful period of data taking by the end of 2004, it has been decided to upgrade the neutron spallation source with a cladded target. In this study, Monte Carlo simulations are reported for the assessment and comparison of the neutron and gamma fluxes from different target configurations. In addition, the plans for a second vertical measuring station with a flight path of 20 m above the spallation target have been considered in the simulations as well. Results for the energy deposition and the target heating are also presented.

© CEA 2008