نتایج جستجو برای: fission reactor
تعداد نتایج: 43724 فیلتر نتایج به سال:
In 2002, an innovative neutron time-of-flight facility started operation at CERN: n_TOF. The main characteristics that make the new facility unique are the high instantaneous neutron flux, high resolution and wide energy range. Combined with state-of-the-art detectors and data acquisition system, these features have allowed to collect high accuracy neutron cross-section data on a variety of iso...
INTRODUCTION Nuclear power reactors have a large inventory of radioiodine among other radionuclides. In the event of an accident in an operating NPP involving a release of radioactivity, the iodine isotopes will be among the first fission products to be released. Radioiodine isotopes cumulate in the thyroid gland. Therefore protection of the thyroid is one of the most important issues of emerge...
Fossil tracks of charged particles have been observed in minerals separated from the Vaca Muerta mesosiderite. Irradiation of samples of the meteorite with thermal neutrons in a nuclear reactor, together with measurements of track-length distribution, indicate that some of the tracks result from the spontaneous fission of uranium impurities; others, however, are of different origin. Uranium con...
Until the pure fusion ages come true, present nuclear power is a crucial option if humanity takes aim for zero net carbon society by 2050s. A thorium subcritical reactor activated and controlled muon-catalyzed (MuCF) an alternative until completion of reactors. This proposal consists two main technologies: steady-state MuCF fission with cascaded neutron multipliers. It will be environmentally f...
Protective aluminum-based coatings represent a promising anti-permeation and anti-corrosion barrier for breeding blanket systems developed European DEMO fusion reactor. Following the prior in-depth characterizations, selected coating candidates were subjected to combined test consisting of contact with liquid Pb-16Li, its repeated in-situ solidification re-melting, tritium permeation during gam...
Silicon carbide (SiC) is a competitive candidate material to be used in several advanced and Generation-IV nuclear reactor designs as neutron moderator, fuel coating, cladding, or core structural material. Many studies have been performed investigate the durability of SiC severe environment reactor. However, nature behavior defect induced by irradiation are still not fully understood. This pape...
We have calculated the fission barrier height for 16O+208Pb, 16O+209Bi, 16O+232Th, 16O+238U and 16O+248Cm systems in energy range between 90 MeV to 215 MeV. This method is based on the experimental data for angular anisotropies of fission fragments. In present work, we have used the transition state model (STM) for two different cases: the first case is without neutron emission correction and...
We have calculated the fission fragment angular anisotropy for 16O + 232Th,12C + 236U , 11B + 237 Np , 14 N + 232 Th , 11B + 235U , 12C + 232Th systems with the saddle point statistical model and compared the fission fragment angular anisotropy for these systems. This comparison was done with two methods a) without neutron correction and b) with neutron correction. Also we studied normal and ...
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