The n TOF facility: Neutron beams for challenging future measurements at CERN
Document typeConference lecture
Rights accessOpen Access
The CERN n TOF neutron beam facility is characterized by a very high instantaneous neutron flux, excellent TOF resolution at the 185m long flight path (EAR-1), low intrinsic background and coverage of a wide range of neutron energies, from thermal to a few GeV. These characteristics provide a unique possibility to perform high-accuracy measurements of neutron-induced reaction cross-sections and angular distributions of interest for fundamental and applied Nuclear Physics. Since 2001, the n TOF Collaboration has collected a wealth of high quality nuclear data relevant for nuclear astrophysics, nuclear reactor technology, nuclear medicine, etc. The overall efficiency of the experimental program and the range of possible measurements has been expanded with the construction of a second experimental area (EAR-2), located 20m on the vertical of the n TOF spallation target. This upgrade, which benefits from a neutron flux 30 times higher than in EAR-1, provides a substantial extension in measurement capabilities, opening the possibility to collect data on neutron cross-section of isotopes with short half-lives or available in very small amounts. This contribution will outline the main characteristics of the n TOF facility, with special emphasis on the new experimental area. In particular, we will discuss the innovative features of the EAR-2 neutron beam that make possible to perform very challenging measurements on short-lived radioisotopes or sub-mg samples, out of reach up to now at other neutron facilities around the world. Finally, the future perspectives of the facility will be presented.
CitationChiaveri, E., Aberle, O., Andrzejewski, J., Calviño, F., Casanovas, A., Cortes, G., Tarifeño, A. The n TOF facility: Neutron beams for challenging future measurements at CERN. A: International Conference on Nuclear Data for Science and Technology. "EPJ Web of Conferences, vol. 146 (2017); ND 2016: International Conference on Nuclear Data for Science and Technology: Bruges, Belgium: 11-16 September 2016". Bruges: EDP Sciences, 2016, p. 03001-1-03001-4.
- ANT - Advanced Nuclear Technologies Research Group - Ponències/Comunicacions de congressos 
- Departament de Física - Ponències/Comunicacions de congressos 
- INTE - Institut de Tècniques Energètiques - Ponències/Comunicacions de congressos 
- NEMEN - Nanoenginyeria de materials aplicats a l'energia - Ponències/Comunicacions de congressos