2014-03-20
04:39 |
$^{62}$Ni($n,\gamma$) and $^{63}$Ni($n,\gamma$) cross sections measured at n_TOF/CERN
/ Lederer, C (Vienna U.) ; Massimi, C ; Berthoumieux, E ; Colonna, N ; Dressler, R ; Guerrero, C ; Gunsing, F ; Käppeler, F ; Kivel, N ; Pignatari, M et al.
The cross section of the $^{62}$Ni($n,\gamma$) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200~keV neutron energy and Maxwellian averaged cross sections (MACS) from $kT=5-100$ keV were calculated. [...]
arXiv:1403.4778.-
2014 - 12 p.
- Published in : Phys. Rev. C 89 (2014) 025810
External link: Preprint
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2014-02-06
04:28 |
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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
10:49 |
Neutron capture on (94)Zr: Resonance parameters and Maxwellian-averaged cross sections
/ Tagliente, G (Gent U. ; INFN, Bari) ; Milazzo, P.M (INFN, Trieste) ; Fujii, K (INFN, Trieste) ; Abbondanno, U (INFN, Trieste) ; Aerts, G (DAPNIA, Saclay) ; Alvarez, H (Santiago de Compostela U.) ; Alvarez-Velarde, F (Madrid, CIEMAT) ; Andriamonje, S (DAPNIA, Saclay) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Karlsruhe, Forschungszentrum) et al.
The neutron capture cross sections of the Zr isotopes play an important role in nucleosynthesis studies. The s-process reaction flow between the Fe seed and the heavier isotopes passes through the neutron magic nucleus (90)Zr and through (91,92,93,94)Zr, but only part of the flow extends to (96)Zr because of the branching point at (95)Zr. [...]
2011
- Published in : Phys. Rev. C 84 (2011) 015801
APS Published version, local copy: PDF;
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2011-11-21
10:48 |
The Role of Fe and Ni for S-process Nucleosynthesis and Innovative Nuclear Technologies
/ Giubrone, G (Valencia U., IFIC) ; Ventura, A (ENEA, Bologna, Italy.) ; Perkowski, J (Lodz U.) ; Andriamonje, S (CERN) ; Carrapico, C (ITN, Lisbon) ; Wallner, A (U. Vienna (main)) ; Vannini, G (INFN, Bologna ; Bologna U.) ; Quesada, J M (Seville U.) ; Lederer, C (U. Vienna (main)) ; Tarrio, D (Santiago de Compostela U.) et al.
The accurate measurement of neutron capture cross sections of all Fe and Ni isotopes is important for disentangling the contribution of the s-process and the r-process to the stellar nucleosynthesis of elements in the mass range 60 < A < 120. At the same time, Fe and Ni are important components of structural materials and improved neutron cross section data is relevant in the design of new nuclear systems. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 2106-2109
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.2106-2109
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2011-11-21
10:48 |
(237)Np(n,f) Cross Section: New Data and Present Status
/ Paradela, C (Santiago de Compostela U.) ; Plukis, A (DSM, DAPNIA, Saclay) ; Carrapico, C (ITN, Lisbon ; DSM, DAPNIA, Saclay) ; Eleftheriadis, C (Aristotle U., Thessaloniki) ; Leeb, H (Vienna, Tech. U., Atominst.) ; Calvino, F (Barcelona, Polytechnic U.) ; Herrera-Martinez, A (CERN) ; Savvidis, I (Aristotle U., Thessaloniki) ; Vlachoudis, V (CERN) ; Haas, B (CENBG, Gradignan) et al.
In this document, we present the final result obtained at the n_TOF experiment; for the neutron-induced fission cross section of the (237)Np, from the fission threshold up to 1 GeV. The method applied to get tins result is briefly discussed. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1908-1911
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1908-1911
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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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