نتایج جستجو برای: criticality nuclear fission

تعداد نتایج: 257853  

2007
E. Arthur J. Buksa

Discriminators are described that quantify enhancements added to plutonium destruction and/or nuclear waste transmutation systems through use of an accelerator/fluid fuel combination. This combination produces a robust and flexible nuclear system capable of the destruction of all major long-lived actinides (including plutonium) and fission products. The discriminators discussed in this report a...

2015
Philip Goddard Paul Stevenson Arnau Rios

Studies of nuclear fission have been ongoing since the discovery of the process in 1938 by Hahn and Strassmann [1]. The actinide nuclide Pu has long been a case of interest, as spontaneous fission presents itself as a decay mechanism with significant probability, relative to other isotopes in the actinide region. This allows for quantitative comparisons between spontaneous and induced fission [...

Journal: :تابش و فناوری هسته ای 0
هادی اسلامی زاده گروه فیزیک، دانشگاه خلیج فارس بوشهر، بوشهر، ایران مهسا پیرپور گروه فیزیک، دانشگاه خلیج فارس بوشهر، بوشهر، ایران

in the present research, we want to simulate the fission process of the excited nucleus 207at produced in fusion reaction 19f+188os in the framework of the modified statistical model with considering the effects of projection of spin about the symmetry axis, k, and temperature. in our simulation, we calculate the fission cross section and anisotropy of the fission fragment angular distribution ...

2013
A. Carpinteri

Recent experiments conducted on natural rocks subjected to different mechanical loading conditions have shown energy emissions in the form of neutrons and anomalous chemical changes (“piezonuclear fission”). In the present study, we have used a numerical technique to simulate the anomalous nuclear products of piezonuclear fission. Specifically, the reactions were simulated by means of a nuclear...

2017
S. S. Haggag

Although there have been some severe nuclear accidents such as Three Mile Island (USA), Chernobyl (Ukraine) and Fukushima (Japan), nuclear fission energy is still a source of clean energy that can substitute fossil fuels in a centralized way and in a great amount with commercial availability and economic competitiveness. Since the pressurized water reactor (PWR) is the most widely used nuclear ...

2013
Amar J. S. Klar

Both budding yeast Saccharomyces cerevisiae and fission yeast Schizosaccahromyces pombe have been very popular organisms used for biological research with eukaryotes for many decades. Judging from the fission yeast Schizosaccharomyces japonicus DNA sequence determined 2 years ago, this species is evolutionarily very much unrelated to the commonly used yeasts for research. Indicating evolutionar...

2013
C. Simenel M. Dasgupta D. J. Hinde A. Kheifets A. Wakhle

Quantum many-body nuclear dynamics is treated at the mean-field level with the time-dependent Hartree-Fock (TDHF) theory. Low-lying and high-lying nuclear vibrations are studied using the linear response theory. The fusion mechanism is also described for light and heavy systems. The latter exhibit fusion hindrance due to quasi-fission. Typical characteristics of quasi-fission, such as contact t...

Journal: :Bulletin of the Atomic Scientists 1948

Journal: :Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 1965

Journal: :International Journal of Modern Physics: Conference Series 2020

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