While the microscopic cross-sectionconveysinformationabout the probabilities ofscattering, absorption orfission for an individual nucleus, the calculation ofthe rates ofthese processes for the reactor as a whole involves, in addition. the numbers of atoms ofeachmaterial perunit volume ofthereactor.
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microscopic fission, scattering and absorption cross- section. Neutron attenuation is a term used to describe the.
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4/24 · This is essentially barns per nucleon (proton). Now look at pp, which goes up to ~ 10 9 GeV (~10 18 eV). At these energies, neutron and proton cross sections are about the same (minimum ~ 40 mb per nucleon at 100 GeV). For silicon, I would multiply per nucleon cross sections by ~28 2/3 = 9.3 (geometric cross section). Bob S.
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To compare between actual and generated microscopic cross-section images of hardwood species, we used a VTT based on Park et al. ( ) and Chuquicusma et al. ( ). Our VTT experiments were conducted by a group of eight wood anatomy experts divided into two levels of expertise for analysis of microscopic wood images, namely, four intermediate
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There are two kinds of cross sections, microscopic and macroscopic. Microscopic cross section refer to cross sections of neutrons reacting with a specific
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Microscopic Versus Macroscopic Cross Section Up to now, the cross section referred to in this article corresponds to the microscopic cross section σ.However, it is possible to define the macroscopic cross section Σ which corresponds to the total “equivalent area” of all target particles per unit volume:
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He explains: “A microscopic cross section looks like brickwork, with flat, hexagonal tablets of a crystalline, calcium carbonate mineral stacked in neat layers. jw The distinction between macroscopic and microscopic cross - section is that the former is a property of a specific lump of material (with its density), while the latter is an intrinsic property of a type of nuclei.
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The coherent and incoherent parts of the elastic scattering cross section are The corresponding microscopic cross sections are obtained as σc = 4π bc.
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While the microscopic cross-section is interpreted as a measure of the probability of interaction between a nucleus and a neutron, the macroscopic cross-section represents the probability
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Correlation between the level density of 90Y and the neutron capture cross section for 89Y (see text for details). Last but not least is the fission cross
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rather than the initial translational velocity. Note that we refer here to the cross section at total energy E, whereas in Eq. (1) the cross section is written as a function of the collision velocity. There is a one-to-one correspondence between the two independent variables, since v = (2µE c) 1/2 = [2µ(E −ε i)] 1/2
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Neutron Cross-Sections,Neutron Density and Neutron Flux 3.1 MODULE OVERVIEW 2 3.2 MODULE OBJECTIVES 3 3.3 THE MICROSCOPIC CROSS-SECTION 3 3.4 MICROSCOPIC CROSS-8ECTIONSOF THE FISSILE ISOTOPES7 3.5 THE MACROSCOPIC
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Figure 9 shows the variation of Sha factors with neutron energy for Pu microscopic cross sections for spherical particles for all 40 combinations of D and α. A
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Tl:dr: macroscopic cross section of hydrogen and water So I'm doing a question that highlights a slight confusion with macroscopic cross section. So my question asks about rate of deuterium production in a water moderator and due to some simplicity's in the question and I've got the point where I've found the rate of neutron absorption
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The microscopic cross-section is used to characterize the probability of reaction between a neutron and an individual particle or nucleus. A neutron can have. The microscopic cross-section is used to characterize the probability of reaction between a neutron and an individual particle or nucleus. A neutron can have
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10/14 · Well, the relationship between macroscopic cross section Sigma (cm^-1) and microscopic cross section sigma (cm^2) is a basic concept introduced in physics books: sigma = A Sigma / (rho N_A), where A is the molar mass (g/mol), N_A is the Avogadro constant (mol^-1), and rho is the material density (g/cm^3).
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In fact, this technology is matching or surpassing expert wood anatomists in both macroscopic and microscopic image recognition and is being
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microscopic cross-section, σ ; probability. of a specified interaction or reaction between an incident radiation and a target particle or system of particles. It
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In this study, the total thermal neutron macroscopic and microscopic cross sections of V, Co, Cu, In, Dy and Au were measured using neutron self-absorption.
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