Neutron Capture Cross Sections for the Weak s Process

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Neutron Capture Cross Sections of Cadmium Isotopes

The neutron capture cross sections of 106 Cd, 108 Cd, 110 Cd, 112 Cd, 114 Cd and 116 Cd were determined in the present project. Four different OSU TRIGA reactor facilities were used to produce redundancy in the results and to measure the thermal cross section and resonance integral separately. When the present values were compared with previously measured values, the differences were mostly due...

متن کامل

Theoretical Neutron-capture Cross Sections for R-process Nucleosynthesis in the 48ca Region

We calculate neutron capture cross sections for r-process nucleosynthesis in the 48 Ca region, namely for the isotopes 40?44 S, 46?50 Ar, 56?66 Ti, 62?68 Cr, and 72?76 Fe. While previously only cross sections resulting from the compound nucleus reaction mechanism (Hauser-Feshbach) have been considered, we recalculate not only that contribution to the cross section but also include direct captur...

متن کامل

Thermal Neutron Capture Cross Sections of the Palladium Isotopes

We have measured precise thermal neutron capture γ-ray cross sections σγ for all stable Palladium isotopes with the guided thermal neutron beam from the Budapest Reactor. The data were compared with other data from the literature and have been evaluated into the Evaluated Gamma-ray Activation File (EGAF)[1]. Total radiative neutron capture cross-sections σγ can be deduced from the sum of transi...

متن کامل

Determining neutron-capture cross sections via the surrogate reaction technique

Indirect methods play an important role in the determination of nuclear reaction cross sections that are hard to measure directly. In this paper we investigate the feasibility of using the so-called surrogate method to extract neutron-capture cross sections for low energy compound-nuclear reactions in spherical and near-spherical nuclei. We present the surrogate method and develop a statistical...

متن کامل

Stellar neutron capture rates – key data for the s process

Neutron reactions are responsible for the formation of the elements heavier than iron. The corresponding scenarios relate to the Heand Cburning phases of stellar evolution (s process) and to supernova explosions (r and p processes). The s process, which is characterized by low neutron densities, operates in or near the valley of β-stability and has produced about half of the elemental abundance...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Publications of the Astronomical Society of Australia

سال: 2009

ISSN: 1323-3580,1448-6083

DOI: 10.1071/as08064