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

C. Carrapiço; S. Andriamonje; E. Berthoumieux; I.F. Gonçalves; F. Gunsing; A. Mengoni; P. Vaz; V. Vlachoudis; the n_TOF collaboration

doi:doi:10.1051/ndata:07394

All issues

Year: 2007

10.1051/ndata:07394

Abstract

Open Access

Issue		ND 2007 2007


Article Number		118
Number of page(s)		4
Section		Facilities and experimental techniques
DOI		https://doi.org/10.1051/ndata:07394
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
⁴ www.cern.ch/ntof

ccarrapico@itn.pt

Published online: 21 May 2008

Abstract
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.