Cross Section Equation

In physics the cross section is a measure of probability that a specific process will take place in a collision of two particles.

Cross section equation. σ μ ρ m a n a. A cross section of any object is an intersection of a plane with that three dimensional object with the plane being perpendicular to the longest axis of symmetry passing through it. 6 1 1 1 σ a b π r a r b 2.

For example the rutherford cross section is a measure of probability that an alpha particle will be deflected by a given angle during a collision with an atomic nucleus cross section is typically denoted σ and is expressed in terms of the transverse area that the. Collision occurs when the distance between the center of the two reactant molecules is less than the sum of the radii of these molecules as shown in figure 6 1 1. For a given particle and its energy the absorption cross section of the target material can be calculated from mass absorption coefficient using.

Displaystyle sigma mu rho m a n a. The collisional cross section σ a a between molecule a and molecule a can be calculated using the following equation. The area a of an arbitrary square cross section is a s 2 where the volume v of the solid is example 2.

Find the volume of the solid whose base is the region bounded by the lines x 4 y 4 x 0 and y 0 if the cross sections taken perpendicular to the x axis are semicircles. Samuel s equation reads dx 0 15 d s where dx is the cross section spacing d is the depth and s is the bed slope. So the question was which depth do you use.