نتایج جستجو برای: nuclear reaction and scattering

تعداد نتایج: 16945123  

Journal: :Physical review letters 2005
Dongxu Dai Chia Chen Wang Guorong Wu Steven A Harich Hui Song Michael Hayes Rex T Skodje Xiuyan Wang Dieter Gerlich Xueming Yang

Full quantum-state resolved scattering of a highly excited Rydberg H atom with D2 has been carried out using the Rydberg H-atom time-of-flight method. A detailed analysis of the experimental results shows that both inelastic and reactive scatterings are significant in the Hn-D2 collisions, and nuclear spin is conserved in the inelastic scattering process. The differential cross sections for the...

بلوری زاده, محمد, قنبری عدیوی, ابراهیم,

  A second-order approximation to the Faddeev-Watson-Lovelace treatment of the rearrangement channel is used in a three-body scattering cross sections. In this formalism, the Three-body wave function is expressed by three coupled integral equations, the Faddeev equations, which contian the two-body (off-shell) transition amplitudes, and proved the uniqueness of their solutions. This amplitude c...

Journal: :Epj Web of Conferences 2023

The necessary improvement of evaluated nuclear data for applications development is possible through new and high-quality measurements, often combined with appropriate nuclear-reaction modelling. In particular, improving inelastic cross-section evaluations requires data. We measure (n, n’γ) cross-sections using prompt γ-ray spectroscopy neutron energy determination by time-of-flight. To extract...

2000
Leonard Rosenberg

Developments in effective-range theory as applied to low-energy atomic scattering processes are reviewed. The focus is on the seminal contributions to this theory made by Larry Spruch, who showed how its original form could be extended to account for the presence of long-range forces arising from Coulomb interactions. The influence of this body of work on the very recent developments stimulated...

1992
A Rapisarda

Cross section fluctuations in nuclear scattering are briefly reviewed in order to show the main important features. Then chaotic scattering is introduced by means of a very simple model. It is shown that chaoticity produces the same kind of irregular fluctuations observed in light heavy–ion collisions. The transition from order to chaos allows a new general framework for a deeper understanding ...

Journal: :Epj Web of Conferences 2023

Nuclear reaction data required for astrophysics and applications is incomplete, as not all nuclear reactions can be measured or reliably predicted. Neutron-induced involving unstable targets are particularly challenging, but often critical simulations. In response to this need, indirect approaches, such the surrogate method, have been developed. theory key extract reliable cross sections from m...

2011
S. P. Simakov R. A. Forrest A. J. Koning

The activation cross sections of (d,p), (d,2n), (d,3n), and (d,2p) reactions on 63,65Cu were measured in the energy range from 4 to 20 MeV using the stacked-foil technique. Then, following the available elastic-scattering data analysis that provided the optical potential for reaction cross-section calculations, an increased effort was devoted to the breakup mechanism, direct reaction stripping,...

2008
Nadia Fomin

Inclusive electron scattering from nuclei at large x and Q2 is the result of a reaction mechanism that includes both quasi–elastic scattering from nucleons and deep inelastic scattering from the quark consitituents of the nucleons. Data in this regime can be used to study a wide variety of topics, including the extraction of nuclear momentum distributions, the influence of final state interacti...

Background: In radiation therapy with ion beams, lateral distributions of absorbed dose in the tissue are important. Heavy ion therapy, such as carbon-ion therapy, is a novel technique of high-precision external radiotherapy which has advantages over proton therapy in terms of dose locality and biological effectiveness.Methods: In this study, we used Monte Carlo method-based Geant4 toolkit to s...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید