U-235
Determination of the U 235, Pu 239 and Pu 240 Contents in Mixed Fissile Materials by Means of Active and Passive Neutron Techniques EUR 4778
... 50.— The feasibility of the well known method of determining the U 235 and Pu 239 contents in mixed fuel by measuring prompt and delayed fission neutrons yields obtained in a sub MeV neu[r] ...
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ABSOLUTE DETERMINATION OF THE U 235/U 238 RATIO WITH AN OPTICAL INTERFEROMETER (HYPEAC) EUR 307 e
... LAUER European Atomic Energy Community - EURATOM Joint Nuclear Research Center Geel Establishment Belgium Central Nuclear Measurements Bureau Brussels, September 1963 - pages 23 - figure[r] ...
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Calculation of the absorption and fission resonance integrals of U-235 by a fitting procedure. EUR 3936
... Fission a.I values of the different energy groups for low enrichments in clifferent eompounds at TEMPERATURE 1O93OK... Fission a.t values of the different energy groups for low enrichmen[r] ...
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Simulation of Pu 239 Fueled Cores by Means of Pu 239 U 235 Fueled Cores in Fast Critical Assemblies EUR 2474
... Intuitively, it is clear that if we have a full scale Pu-2,39 reactor A with a certain y 1 and a zoned reactor B characterized by the same value Yi in the inner zone the driver zone bein[r] ...
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Euratom Bulletin 1962 No 1
... It thus became evident that there was difficulty with the procedure because the sixth fuel element would bring the total mass of U 235 in the core u p to 1457 grams, two grams more than [r] ...
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lecture 4 nuclear chemistry.ppt
... Kr isotope plus 3 neutrons and a lot of energy ■ Sample rich in U-235 could create a chain rxn ■ To make a bomb, however, need critical mass =. enough mass of U-235 to produce a self-[r] ...
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Verification of Neutron Data for Main Reactor Materials from RUSFOND Library based on Integral Experiments
... Na (n,f)Np237 (n,f)U238 (n,p)Al27 Pb (n,f)Np237 (n,f)U238 (n,p)Al27 EXP 1.000 EXP 1.000 1.000 1.000 RF2010 1.000 0.831 1.000 RF2010 1.300 1.182 1.060 E-VII.1 1.000 0.831 0.999 E-VII.1 1.251 1.145 1.036 JEFF-3.1.2 1.005 ...
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Das Verhalten hoher Plutoniumkonzentrationen im Purex Prozeß und die Entwicklung schneller Extraktoren zur Wiederaufarbeitung von Kernbrennstoffen EUR 3683 = The behavior of high plutonium concentrations in the Purex process and the development of fast extractors for the reprocessing of nuclear fuels EUR 3683
... Die beiden wesentlichen Probleme ergeben sich 1 aus der Kritikalitätsgefahr durch hohe Spaltstoffkonzentrationen Pu, U-235 und 2 durch Radiolyse des Extraktionsmittels bei hoher spezifis[r] ...
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Towards the high-accuracy determination of the 238U fission cross section at the threshold region at CERN – n_TOF
... 238 U/ 235 U fission cross section ratio has been calculated as the weighted average value of all the datasets, taking into account the uncorrelated statistical ...
6
Multiscale Modelling of Nuclear Fuels under Irradiation
... fuel element Nucleation of FG bubbles Atomic gas diffusion Production Xe Bubble/pore destruction re-solution Bubble growth Pore shrinking Bubble/pore movement Xe Xe Xe U 235 Xe Xe [r] ...
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Energy Statistics 1970 No 3
... Entwicklung der Einfuhren an angereichertem Uran durch die Gemeinschaft Évolution des importations d'uranium enrichi de la Communauté kg U-235 Davon mit Endbestimmung Jahr.. Dont à desti[r] ...
240
Testing of Neutron Data for Fe, Cr, Ni based on Integral Experiments
... National neutron data libraries were recently modified in USA, Europe, Japan, China and Russia. These data libraries are now being tested for further use in applications. The neutron data were mainly tested using ...
6
Methane Emission Control228-235
... Natural gas has a number of environmental bene fi ts: it is a cleaner burning fuel typically containing few impurities, it contains higher energy (Bti) per carbon than traditional hydr[r] ...
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A stochastic method to propagate uncertainties along large cores deterministic calculations
... eigenvalue separation factor (EVS) and grows like the size of the core. Thus with the same initial perturbation, the larger the core, the higher the resulting flux perturbation amplitude. The deterministic nuclear data ...
5
High-resolution evaluation of the U5(n,f) cross section from 3 keV to 30 keV
... measurements, but only a few having both high statistic and fine energy resolution. So that, this work is based in only those susceptible of passing a suited filter without loss of the required information. Every dataset ...
9
Use of integral experiments for the assessment of the 235U capture cross section within the CIELO Project
... section, and the C/E results stay overall in good agreement, with, in some cases, a small improvement. It should be noted however that the results could be impacted by the nuclear data of other materials present in the ...
6
Central Tethyan platform-top hypoxia during Oceanic Anoxic Event 1a
... (REEs), U iso- topes, and redox-sensitive trace elements) applied to lower Aptian shallow-water carbonates today exposed in the Kan- fanar quarry in Istria, ...
18
Novel Chiral Chemistries Japan 2012229-235
... Professor Ilya Gridnev (Tokyo Institute of Technology, Japan) discussed the mechanisms of enantioselective reactions with bifunctional Ru and Ir catalysts, such as.. 7 and 8.[r] ...
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ABSTRACTS: October 1990222-235
... Performance of the catalysts in the H,O-splitting process was related to the different reduction methods by considering the physical characteristics of the powders, bot[r] ...
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