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units of macroscopic cross sections
effective cross sections for calculations of criticality of ... - IPEN
approximation to the total macroscopic cross section of the medium can be found by In the next step, we consider radiation falling on a unit area of the
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A) Melting point as a function of the thermal-neutron
The macroscopic cross section is the microscopic cross section (cm 2 ) multiplied by the atomic number density (cm −3 ), which gives it the units of cm −1
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The difference between microscopic and macroscopic cross
Microscopic cross-sections (σ) are given for each nuclide usually in units of barns, where 1 b = 1 x 10-24 cm2. It is essentially the effective
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Absorption Cross Section | Physics Forums
The macroscopic cross section (capital sigma or sometimes mu) is the product of the number density A (units of m^-3) and the microscopic cross section (units of m^2) giving units of inverse length (m^-1). The macroscopic cross section is useful because it is a material property.
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Dictionary:Capture cross section - SEG Wiki
2. The macroscopic capture cross section, Σ, is the effective cross-sectional area per unit volume for capture of neutrons; it depends on the
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The difference between microscopic and macroscopic cross sections
10/31 · 20,607. 4,578. Microscopic cross-sections (σ) are given for each nuclide usually in units of barns, where 1 b = 1 x 10 -24 cm 2. It is essentially the effective area for the particular reaction. The macroscopic cross-section (Σ) has units of cm -1 is derived from the microscopic section according to. Σ = N σ, where N is the atomic density
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Cross-Sections - DoITPoMS
The macroscopic cross-section is the probability that a neutron will undergo a reaction per unit path length travelled in the material. The probability that a
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Macroscopic Cross-section | Definition & Examples | nuclear
The macroscopic cross-section represents the effective target area of all of the nuclei contained in the volume of the material (such as fuel pellet). The units are given in cm-1. It is the
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Review - the Particle Flux - Indico
The macroscopic cross-section The units of Σ are m-1 (m-3.m2) and this represents the probability of an interaction per unit path length. So the number of interactions per unit volume (per unit time) in the target is also given by
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A method for conversion of hounsfield number to electron density and prediction of macroscopic pair production cross-sections
1986/1/1 · If Hc is the macroscopic cross-section for pair production for the com- pound, then ZMiHi Hc - (7) M where Mi/M is the fractional weight in the com- pound of element i. Since Hi (barn/atom) micro- scopically is dependent on Z2 it will, when ex- pressed as a macroscopic quantity, in cmZ/g, in- stead be dependent on Z.
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4.2: Cross - Sections - Engineering LibreTexts
11/26 · Each element present in a material has its own macroscopic cross-section (m −1) defined by the following equation, where N is the nuclear number density as used earlier (m −3
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