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CERN Document Server Намерени са 2,046 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.97 секунди. 
1.
(100)
Neutron capture cross section of $^{90}$Zr : Bottleneck in the s-process reaction flow / n_TOF Collaboration
The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus 90Zr, which accounts for more than 50% of natural zirconium represents one of the key isotopes for the stellar s-process, because it acts as a bottleneck in the neutron capture chain between the Fe seed and the heavier isotopes. [...]
2008 - Published in : Phys. Rev. C 77 (2008) 035802 APS Published version, local copy: PDF;
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2.
(91)
 Neutron Capture Cross Sections of Zr and La: Probing Neutron Exposure and Neutron Flux in Red Giant Stars / Ferrari, Ainstitute et al.
Approved: 06 February 2003.-
Status: Finished
Experiment: nTOF8
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3.
(89)
Neutron reactions and nuclear cosmo-chronology / Mosconi, M ; Fitzpatrick, L (CERN) ; Herrera-Martínez, A (CERN) ; Sarchiapone, L (CERN)
The β-decay of 187Re represents a suited cosmo-chronometer for the age of the r-process abundances, since the radiogenic part of the daughter isotope 187Os is defined by the difference between the solar 187Os abundance and s-process contribution to 187Os. The latter component can be determined via the s-process systematics based on the stellar neutron capture cross sections of 186Os and 187Os. [...]
2007 - Published in : Prog. Part. Nucl. Phys. 59 (2007) 165-173
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4.
(82)
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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5.
(79)
Neutron capture cross section of $^{232}Th$ measured at the nTOF facility at CERN in the unresolved resonance region up to 1 MeV / n_TOF Collaboration
We have measured the neutron capture reaction yield of /sup 232energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy range from 4 keV up to 1 MeV with an overall accuracy better than 4%. [...]
2006 - Published in : Phys. Rev. C 73 (2006) 054610 APS Published version, local copy: PDF;
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6.
(78)
Neutron Capture Measurements at the nTOF Facility / n_TOF Collaboration
2009 - 5 p. - Published in : AIP Conf. Proc.: 1109 (2009) , pp. 84-89
In : 1st Ulaanbaatar Conference on Nuclear Physics and Applications, Ulaanbaatar, Mongolia, 8 – 11 Sep 2008, pp.84-89
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7.
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Μελέτη των χαρακτηριστικών της δέσμης νετρονίων και προσδιορισμός παραμέτρων συντονισμού της σύλληψης νετρονίων στο 234U με την μέθοδο της ολικής απορρόφησης, στην πειραματική διάταξη n_TOF του CERN / Lampoudis, Christos
At an international level several issues accompany the long-term development of nuclear science and its applications: nuclear waste management, new reactor design, increasingly safety requirements, public acceptance etc [...]
CERN-THESIS-2007-116 -

Fulltext
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8.
(75)
 Neutron capture cross section of $^{93}$Zr
Approved: 30 November 2012.-
Status: Preparation
Experiment: nTOF20
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9.
(69)
Measurement of the Neutron Capture Cross Section of the Fissile Isotope 235U with the CERN n_TOF Total Absorption Calorimeter and a Fission Tagging Based on Micromegas Detectors / Balibrea, J ; Mendoza, E ; Cano-Ott, D ; Guerrero, C ; Berthoumieux, E ; Altstadt, S ; Andrzejewski, J ; Audouin, L ; Barbagallo, M ; Bécares, V et al.
Current and future nuclear technologies require more accurate nuclear data on (n,γ) cross sections and the α-ratios of fissile isotopes. Their measurement presents several difficulties, mainly related to the strong fission γ-ray background competing with the weaker γ-ray cascades used as the experimental signature of the (n,γ) process. [...]
2014 - Published in : Nucl. Data Sheets 119 (2014) 10-13
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10.
(68)
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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