capture/emission cross sections
Neutron capture and fission reactions on 235U: cross sections, α-ratios and prompt γ-ray emission from fission
... detailed analysis shall begin, and this will certainly be very challenging. A combination of the measured data and a full simulation of the experimental set-up will serve to determine the different detection efficiencies ...
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Survival Mediated Heavy Element Capture Cross Sections
... For the most part, the formalism for calculating the sur- vival, against fission, of a highly excited nucleus is under- stood [2]. One begins with a single particle model [3] of the level density in which one allows the ...
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Neutron-induced capture cross sections via the surrogate reaction method
... Neutron-induced cross sections of short-lived nuclei are of great interest in applied science and fun- damental ...such cross sections are very difficult to measure directly due to the ...
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Capture cross sections on unstable nuclei
... Spectroscopy information about unstable and neutron- rich nuclei, for which a direct measurements of experimental data is either impossible or very difficult, will be in ever greater demand. Fast development of ...
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Neutron capture cross sections from Surrogate measurements
... To move beyond the approximate analysis methods cur- rently employed, a comprehensive theoretical treatment of the Surrogate approach is required. This involves a de- scription of direct reactions that populate ...
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Measurement of the 244Cm and 246Cm neutron-induced capture cross sections at the n_TOF facility
... the path for the formation of heavier Cm isotopes and heavier elements such as Bk and Cf in a nuclear reactor. In addition, both isotopes belong to the minor actinides with a large contribution to the decay heat and to ...
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A Comprehensive Approach to Determination of Nuclear Data of Unstable Nuclei
... neutron capture cross sections of unstable nuclei is one of the most important subjects of current nuclear-data activities because accurate dosimetry and burnup calculations, and research in ...
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Derivation of capture and reaction cross sections from experimental quasi-elastic and elastic backscattering probabilities
... the capture cross sections of the reactions 6 , 7 Li+ 64 Zn can be extracted, if one assumes that P BU = 0, since it is much smaller than P qe ...
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Polarised stimulated emission depletion studies of two-photon excited states
... stimulated emission cross-sections and ground state relaxation times over the DUMP wavelength range was carried out using the conventional 90 ° excitation-detection geometry (figure 3A), scattered ...
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Simultaneous measurement of neutron-induced fission and capture cross sections for 241Am at neutron energies below fission threshold
... The capture reaction was measured by detecting γ rays emitted in the deexcitation of the compound nuclei using the same detectors, where the prompt fission neutrons and capture γ rays were separated by a ...
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Generation of 238U Covariance Matrices by Using the Integral Data Assimilation Technique of the CONRAD Code
... neutron cross sections are produced via two types of information: microscopic experiments (such as transmission, capture and fission reaction yields measured in dedicated facilities) and integral ...
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Astrophysical Radiative Neutron Capture on 10B Taking into Account Resonance at 475 keV
... total cross section of the capture reactions as a function of energy is very important for investigation of many astro- physical problems such as primordial nucleosynthesis of the universe, main trends of ...
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Sub-barrier capture with quantum diffusion approach
... of capture cross sections and mean-square angular momenta of captured systems are revealed in the reactions with deformed and spherical nuclei at sub-barrier ...the capture cross ...
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Neutron cross-sections for advanced nuclear systems: the n_TOF project at CERN
... Since 2001 a high-luminosity neutron time-of-flight facility, n_TOF, has been operating at CERN with the aim of addressing the needs of nuclear data for basic and applied nuclear Physics [2, 3]. A large International ...
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Sensitivity and Uncertainty Analysis of the Keff Due to ENDF/B VII 0 Cross Sections Uncertainties of the Major Isotopes in Nuclear Reactors
... Since the beginning of the century, the nuclear data evaluation communities are putting more and more attention to the assessment of uncertainties. This increased interest concerns both basic data (cross section, ...
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Validation of Neutron Evaluated Data Based on The Experimental Reactivity Worth of Tungsten Target in CiADS
... radiative capture, elastic scattering, inelastic scattering, (N, 2N) and (N, ...radiative capture causes a negative reactivity in the system, whereas the elastic scattering and inelastic scattering ...
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Fukushima Plutonium Effect and Blow Up Regimes in Neutron Multiplying Media
... ABSTRACT It is shown that the capture and fission cross-sections of 238U and 239Pu increase with temperature within 1000 K - 3000 K range, in contrast to those of 235U, that under certai[r] ...
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Fission cross-sections, prompt fission neutron and γ-ray emission in request for nuclear applications
... The respective experiments have been performed at the JRC-IRMM Van de Graaff accelerator during the past years. The main difference to previous works in literature was that three reference targets have been used, namely ...
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Rotational character of the 12C spectrum investigated through inelastic cross sections via photon emission
... As shown in Ref.[3], in the case of continuum to continuum transitions, a direct calculation of the transition strength from Eq.(3) is not possible. It is in fact necessary to extract it directly from the cross ...
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Evaluation of Neutron Capture Cross Sections and Covariances on 99Tc and 129I in the keV Energy Region
... Figure 3 shows the resulting correlation matrix of capture cross section. The strong and positive correlation is found below 10 MeV. This is because the positive change of parameters such as level density ...
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