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spontaneous fission

Use of active scintillating targets in nuclear physics experiments - Measurement of spontaneous fission

Use of active scintillating targets in nuclear physics experiments - Measurement of spontaneous fission

... for fission events and α-decay events, even for high count rates since the PSD technique can be used in order to correct for count losses due to ...of spontaneous fission, but such active targets can ...

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Variable Dead Time Neutron Counter for Tamper Resistant Measurements of Spontaneous Fission Neutrons  EUR 4801

Variable Dead Time Neutron Counter for Tamper Resistant Measurements of Spontaneous Fission Neutrons EUR 4801

... Joint Nuclear Research Centre Ispra Establishment - Italy Physics Division and Technology Division Paper presented at the International Meeting on Non-Destructive Measurement and Identif[r] ...

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Nuclear Science and Technology: On the Determination of the Pu 240 in Solid Waste Containers by Spontaneous Fission Neutron Measurements Application to Reprocessing Plant Waste

Nuclear Science and Technology: On the Determination of the Pu 240 in Solid Waste Containers by Spontaneous Fission Neutron Measurements Application to Reprocessing Plant Waste

... The fission neutrons from Pu-240 spontaneous fissions are measured with a system consisting of a flexible well-type counter built up of six modular units, each containing three ^He-count[r] ...

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Alpha-decay and spontaneous fission half-lives of super-heavy nuclei around the doubly magic nucleus 270Hs

Alpha-decay and spontaneous fission half-lives of super-heavy nuclei around the doubly magic nucleus 270Hs

... results from Fig. 3 and Fig. 4 we may conclude that the SHN from unstable configurations undergo spontaneous α-decay or SF until the nuclear stability is reached. Our results for the decay properties of SHN around ...

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Advanced model for the prediction of the neutron-rich fission product yields

Advanced model for the prediction of the neutron-rich fission product yields

... independent fission product formation cross sections in the spontaneous fission and in the neutron and proton induced fission at the energies up to 100 MeV is ...primary fission ...

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Annual progress report on nuclear data 1990  May 1991  EUR 13555 EN

Annual progress report on nuclear data 1990 May 1991 EUR 13555 EN

... In particular additional information on the nuclear charge distribution and the odd-even effects for mass, charge and neutron number in the cold spontaneous fission of 252Cf was obtained[r] ...

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Evaluation of Natural Radioactivity Levels for Structural Material Used in the Construction of the Neutrino Detector

Evaluation of Natural Radioactivity Levels for Structural Material Used in the Construction of the Neutrino Detector

... via spontaneous fission process. The spontaneous fission rate is far less than the α -decay ...the spontaneous fission of the 238 U, 235 U, 234 U and 232 ...the ...

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Real time investigation of temporal and spatial correlations in fast neutron assay from spontaneous and stimulated fission

Real time investigation of temporal and spatial correlations in fast neutron assay from spontaneous and stimulated fission

... to spontaneous fission of major ...the spontaneous fission neutron flux after the irradiation of (a) PWR-MOX, (b) BWR-MOX and (c) PWR- UOX fuel ...of spontaneous fission neutron ...

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Constraining Fission Yields Using Machine Learning

Constraining Fission Yields Using Machine Learning

... of fission observables is important for a variety of applications, ranging from energy to non-proliferation, defense to ...the spontaneous fission of 252 Cf, where there is abundant ...

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SPIDER: A new instrument for fission fragment research at the Los Alamos Neutron Science Center

SPIDER: A new instrument for fission fragment research at the Los Alamos Neutron Science Center

... Where E is the energy, t is the time-of-flight, and l the flight path length. The uncertainty in flight path length depends on two components; the different distances traveled between the two detectors due to variation ...

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Radiation transport out from the reactor core: to decouple or not to decouple

Radiation transport out from the reactor core: to decouple or not to decouple

... To illustrate further the effect of superhistories in better maintaining the fundamental mode when variance reduction is present, we show in Figs. 20 the phase space cell importances (the z axis) found with the DSA for ...

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Monte Carlo Hauser-Feshbach Modeling of Prompt Fission Neutrons and Gamma Rays

Monte Carlo Hauser-Feshbach Modeling of Prompt Fission Neutrons and Gamma Rays

... Prompt fission neutrons and gamma rays constitute the first signature of post-scission ...in fission but also inform about the intricate physical processes at work near the point of separation of the two ...

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Simultaneous measurement of neutron-induced fission and capture cross sections for 241Am at neutron energies below fission threshold

Simultaneous measurement of neutron-induced fission and capture cross sections for 241Am at neutron energies below fission threshold

... by fission using liquid organic ...prompt fission neutrons and capture γ rays were separated by a pulse shape ...the fission to capture cross sections at each resonance is compared with those from an ...

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Prompt and Delayed Neutron Emissions and Fission Product Yield Calculations with Hauser-Feshbach Statistical Decay Theory and Summation Calculation Method

Prompt and Delayed Neutron Emissions and Fission Product Yield Calculations with Hauser-Feshbach Statistical Decay Theory and Summation Calculation Method

... than the evaluated value in JENDL-4.0 (ν = 2.44). The mass dependent neutron multiplicity ν(A) is shown in Figure 1 together with available experimental data [7–11]. Our calculation well follows the experimental data in ...

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To unite or divide: mitochondrial dynamics in the murine outer retina that preceded age related photoreceptor loss

To unite or divide: mitochondrial dynamics in the murine outer retina that preceded age related photoreceptor loss

... mitochondrial fission (Fis1) and fusion (Opa1) proteins, cytochrome C oxidase (COX III), which reflects mitochondrial metabolic status, and heat shock protein 60 (Hsp60) that is a mitochondrial chaperon for ...

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Intermediate Structures in Fission and Consequences on Average Partial Cross Sections

Intermediate Structures in Fission and Consequences on Average Partial Cross Sections

... average fission cross section of about 20% for a fertile isotope over the ...overall fission barrier to be input in the calculation of the standard W n,f ...

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High Lard and High Fish Oil Diets Differ in Their Effects on Insulin Resistance Development, Mitochondrial Morphology and Dynamic Behaviour in Rat Skeletal Muscle

High Lard and High Fish Oil Diets Differ in Their Effects on Insulin Resistance Development, Mitochondrial Morphology and Dynamic Behaviour in Rat Skeletal Muscle

... and fission proc- esses, we investigated at light microscopy level the pres- ence of the four main proteins involved in these proc- esses, (Mfn2 and OPA1 for fusion and DRP1 and Fis1 for fission), by the ...

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Cyclin B in fission yeast mitosis and meiosis

Cyclin B in fission yeast mitosis and meiosis

... The cytoskeleton is a network of cytoplasmic filaments involved in cell motility, cell division and intracellular organization. In the great majority of eukaryotic cells there are three classes of component filaments: ...

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Validation of the multinucleon transfer method for the determination of the fission barrier height

Validation of the multinucleon transfer method for the determination of the fission barrier height

... (A, Z) lines associated with specific ejectiles are well sep- arated, making it possible to identify specific reaction channels clearly. On each plot, we applied banana-like gates, using a functional to select the charge ...

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PRODUCTION AND AVAILABILITY OF RADIOISOTOPES

PRODUCTION AND AVAILABILITY OF RADIOISOTOPES

... Both of these features make the reactor Fission Process The fission process results generally in two a useful and extremely productive unit for making radioisotopes; the first for yieldi[r] ...

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