2013-12-06
04:26 |
A new CVD Diamond Mosaic-Detector for (n,$\alpha$) Cross-Section Measurements at the n\_TOF Experiment at CERN
/ Weiss, C (Vienna, Tech. U., Atominst. ; CERN) ; Griesmayer, E (Vienna, Tech. U., Atominst.) ; Guerrero, C (CERN)
/n\_TOF Collaboration
At the n\_TOF experiment at CERN a dedicated single-crystal chemical vapor deposition (sCVD) Diamond Mosaic-Detector has been developed for (n,$\alpha$) cross-section measurements. The detector, characterized by an excellent time and energy resolution, consists of an array of 9 sCVD diamond diodes. [...]
arXiv:1312.1649.-
2013
- Published in : Nuclear Instruments and Methods in Physics Research A: 732 (2013) , pp. 190-194
External link: Preprint
In : 13th Vienna Conference on Instrumentation, Vienna, Austria, 11 - 15 Feb 2013
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2013-03-28
15:50 |
Measurement of the fission fragment angular distribution for 232Th(n,f) at the CERN n-TOF facility
/ Tarrío, D (U. Santiago de Compostela (main)) ; Tassan-Got, L (Orsay, IPN) ; Audouin, L (Orsay, IPN) ; Duran, I (U. Santiago de Compostela (main)) ; Leong, L S (Orsay, IPN) ; Paradela, C (U. Santiago de Compostela (main)) ; Altstadt, S (Goethe U., Frankfurt (main)) ; Andrzejewski, J (Lodz U.) ; Barbagallo, M (INFN, Bari) ; Bécares, V (Madrid, CIEMAT) et al.
A fission reaction chamber was designed to measure the angular distribution of the fragments emitted in neutron-induced fission reactions at n_TOF. Up to ten Parallel Plate Avalanche Counters can be included and kept at controlled low-pressure gas. [...]
2012
Fulltext: PDF;
In : 13th International Conference on Nuclear Reaction Mechanisms, Villa Monastero, Varenna, Italy, 11 - 15 Jun 2012, pp.253
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2012-05-08
17:45 |
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2011-11-21
10:50 |
$^{197}Au(n,\gamma)$ cross section in the unresolved resonance region
/ Lederer, C. (Vienna U.) ; Colonna, N (INFN, Bari) ; Domingo-Pardo, C (CSIC, Catalunya) ; Gunsing, F (DAPNIA, Saclay) ; Kappeler, F (Karlsruhe, Inst. Technol.) ; Massimi, C. (INFN, Bologna ; Bologna U.) ; Mengoni, A. (CERN ; IAEA, Vienna) ; Wallner, A. (Vienna U.) ; Abbondanno, U. (INFN, Trieste) ; Aerts, G. (DAPNIA, Saclay) et al.
The cross section of the reaction (197)Au(n,gamma) was measured with the time-of-flight technique at the n_TOF (neutron time-of-flight) facility in the unresolved resonance region between 5 and 400 keV using a pair of C(6)D(6) (where D denotes (2)H) liquid scintillators for the detection of prompt capture gamma rays. The results with a total uncertainty of 3.9%-6.7% for a resolution of 20 bins per energy decade show fair agreement with the Evaluated Nuclear Data File Version B-VII.0 (ENDF B-VII.0), which contains the standard evaluation. [...]
2011
- Published in : Phys. Rev. C 83 (2011) 034608
APS Published version, local copy: PDF;
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2011-11-21
10:48 |
Improved Neutron Capture Cross Section Measurements with the n\_TOF Total Absorption Calorimeter
/ Mendoza, E (Madrid, CIEMAT) ; Prena, J (Seville U.) ; Perkowski, J (Lodz U.) ; Andriamonje, S (CERN) ; Carrapico, C (ITN, Lisbon) ; Moinul, M (INFN, Bari) ; Vannini, G (INFN, Bologna ; Bologna U.) ; Quesada, J M (Seville U.) ; Harrisopulos, S (Democritos Nucl. Res. Ctr.) ; Milazzo, P M (INFN, Trieste) et al.
The n\_TOF collaboration operates a Total Absorption Calorimeter (TAC) {[}1] for measuring neutron capture cross-sections of low-mass and/or radioactive samples. The results obtained with the TAC have led to a substantial improvement of the capture cross sections of (237)Np and (240)Pu {[}2]. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1813-1816
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1813-1816
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2011-11-21
10:48 |
Neutron Capture Measuremetns on Minor Actinides at the n\_TOF Facility at CERN: Past, Present and Future
/ Cano-Ott, D (Madrid, CIEMAT) ; Plukis, A (DSM, DAPNIA, Saclay) ; Eleftheriadis, C (Aristotle U., Thessaloniki) ; Leeb, H (Vienna, Tech. U., Atominst.) ; Calvino, F (Madrid, Polytechnic U.) ; Herrera-Martinez, A (INFN, Legnaro) ; Savvidis, I (Aristotle U., Thessaloniki) ; Vlachoudis, V (CERN) ; Haas, B (CENBG, Gradignan) ; Abbondanno, U (INFN, Bari) et al.
The successful development of advanced nuclear systems for sustainable energy production and nuclear waste management depends on high quality nuclear data libraries. Recent sensitivity studies and reports {[}1-3] have identified the need for substantially improving the accuracy of neutron cross-section data for minor actinides. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1809-1812
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1809-1812
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2011-11-21
10:48 |
Measurement of the (236)U(n, f) Cross Section at n\_TOF
/ Sarmento, R (ITN, Sacavem) ; Goncalves, I F (ITN, Sacavem) ; Vaz, P (ITN, Sacavem) ; Colonna, N (INFN, Bari) ; Calviani, M (CERN)
A precise knowledge of the (236)U neutron-induced fission cross-section is required for the development of accelerator-driven systems and reactors based on the Th-U cycle. The evaluated data presently stored in the nuclear data libraries rely on outdated experimental measurements and show large discrepancies in the energy region between 1 keV and 100 keV. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1793-1796
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2011-11-21
10:47 |
Characterization of the New n\_TOF Neutron Beam: Fluence, Profile and Resolution
/ Guerrero, C (Madrid, CIEMAT) ; Ventura, A (ENEA, Bologna) ; Perkowski, J (Lodz U.) ; Andriamonje, S (CERN) ; Carrapico, C (ITN, Lisbon) ; Moinul, M (INFN, Bari) ; Vannini, G (INFN, Bologna ; Bologna U.) ; Quesada, J M (Seville U.) ; Harrisopulos, S (Democritos Nucl. Res. Ctr.) ; Milazzo, P M (INFN, Trieste) et al.
After a halt of four years, the n\_TOF spallation neutron facility at CERN has resumed operation in November 2008 with a new spallation target characterized by an improved safety and engineering design, resulting in a more robust overall performance and efficient cooling. The first measurement during the 2009 run has aimed at the full characterization of the neutron beam. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1624-1627
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1624-1627
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2011-11-21
10:47 |
Past, Present and Future of the n\_TOF Facility at CERN
/ Chiaveri, E (CERN) ; Ventura, A (ENEA, Bologna) ; Perkowski, J (Lodz U.) ; Andriamonje, S (CERN) ; Carrapico, C (ITN, Lisbon) ; Wallner, A (U. Vienna (main)) ; Quesada, J M (Seville U.) ; Harrisopulos, S (Democritos Nucl. Res. Ctr.) ; Milazzo, P M (INFN, Trieste) ; Berthier, B (Orsay, IPN) et al.
The n\_TOF spallation neutron facility is operating at CERN since 2001. Neutrons are produced with a very wide energy range, from thermal up to 1 GeV and with a very high instantaneous flux (10(5)n/cm(2)/pulse at 200 m from target) thanks to the high intensity (7 x 10(12) protons/pulse) and low repetition rate of the Proton Synchrotron (PS) which is delivering protons to a lead spallation target. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1620-1623
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1620-1623
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2011-11-21
10:47 |
A New 2D-micromegas Detector for Neutron Beam Diagnostic at n\_TOF
/ Andriamonje, S (CERN) ; Giomataris, Y (Saclay) ; Vlachoudis, V (CERN) ; Guerrero, C (Madrid, CIEMAT) ; Losito, R (CERN) ; Calviani, M (CERN) ; Gunsing, F (Saclay) ; Colonna, N (INFN, Bari) ; Papaevangelou, T (Saclay) ; Berthoumieux, E (Saclay) et al.
A novel detector for 2D neutron beam diagnostic has been jointly developed by CERN and CEA in the framework of the n\_TOF Collaboration for investigation of the neutron beam spatial characteristics, namely position and profile as a function of the neutron energy. The detector is based on the already established MicroMegas ``Bulk{''} technology and has been evolved from the one used for the CAST (CERN Axion Solar Telescope) experiment but equipped with an appropriate neutron/charged particle converter for neutron detection. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1601-1604
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1601-1604
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