Neutron Capture Measurements at the n lowbar TOF Facility

Journal Article · Tue Mar 31 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3122267· OSTI ID:21293527

Milazzo, P M; Abbondanno, U; Fujii, K ^[1]; Aerts, G; Andriamonje, S; Berthoumieux, E; Dridi, W; Ferrant, L; Gunsing, F; Pancin, J; Perrot, L; Plukis, A; Stephan, C; Tassan-Got, L ^[2]; Alvarez, H; Duran, I; Paradela, C ^[3]; Alvarez-Velarde, F; Cano-Ott, D; Embid-Segura, M ^[4]

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1. Istituto Nazionale di Fisica Nucleare, Trieste (Italy)
2. Centre National de la Recherche Scientifique/IN2P3-IPN, Orsay (France)
3. Universidade de Santiago de Compostela (Spain)
4. Centro de Investigaciones Energeticas Medioambientales y Technologicas, Madrid (Spain)

Nuclear astrophysics, advanced nuclear technology and nuclear structure physics present many cases that require neutron capture reaction data with high precision. In particular, refined data are needed for stellar nucleosynthesis, for nuclear waste transmutation studies, and for the design of generation IV reactors. The measurements take profit of the pulsed neutron beam of the n lowbar TOF facility at CERN, which is generated by proton-induced spallation reactions on a massive lead target. The low repetition rate of the proton beam, the high instantaneous neutron flux, and the favourable background conditions in the experimental area make this facility unique for high resolution time-of-flight measurements of neutron induced reaction cross sections. The n lowbar TOF collaboration is presently operating two different experimental set-ups. The first consists of two low-neutron sensitivity C{sub 6}D{sub 6} detectors with the analysis relying on the Pulse Height Weighting technique. In addition, a Total Absorption Calorimeter, consisting of 40 BaF{sub 2} crystals covering the whole solid angle, was used. A review of several capture measurements with these detectors on selected stable and unstable samples will be presented.

• OSTI ID: 21293527
• Journal Information: AIP Conference Proceedings, Vol. 1109, Issue 1; Conference: 1. Ulaanbaatar conference on nuclear physics and applications, Ulaanbaatar (Mongolia), 8-11 Sep 2008; Other Information: DOI: 10.1063/1.3122267; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
BARIUM FLUORIDES
BENZENE
CAPTURE
CERN
CROSS SECTIONS
LIQUID SCINTILLATION DETECTORS
NEUTRON BEAMS
NEUTRON FLUX
NEUTRON REACTIONS
NUCLEAR STRUCTURE
NUCLEOSYNTHESIS
PROTON BEAMS
RESOLUTION
SENSITIVITY
SOLID SCINTILLATION DETECTORS
TIME-OF-FLIGHT METHOD
TRANSMUTATION