Search results
Results from the WOW.Com Content Network
Bragg's law. Physical law regarding scattering angles of radiation through a medium. In many areas of science, Bragg's law, Wulff –Bragg's condition, or Laue–Bragg interference are a special case of Laue diffraction, giving the angles for coherent scattering of waves from a large crystal lattice. It describes how the superposition of wave ...
In condensed matter physics and crystallography, the static structure factor (or structure factor for short) is a mathematical description of how a material scatters incident radiation. The structure factor is a critical tool in the interpretation of scattering patterns (interference patterns) obtained in X-ray, electron and neutron diffraction ...
Differential equations. In mathematics, the power series method is used to seek a power series solution to certain differential equations. In general, such a solution assumes a power series with unknown coefficients, then substitutes that solution into the differential equation to find a recurrence relation for the coefficients.
Wide-angle X-ray scattering. In X-ray crystallography, wide-angle X-ray scattering (WAXS) or wide-angle X-ray diffraction (WAXD) is the analysis of Bragg peaks scattered to wide angles, which (by Bragg's law) are caused by sub-nanometer-sized structures. [1] It is an X-ray-diffraction [2] method and commonly used to determine a range of ...
Ohm's law states the relationship between the current I and the voltage V of a circuit by introducing the quantity known as resistance R [35] Ohm's law: = / Power is defined as = so Ohm's law can be used to tell us the power of the circuit in terms of other quantities [36]
Stopping power (particle radiation) In nuclear and materials physics, stopping power is the retarding force acting on charged particles, typically alpha and beta particles, due to interaction with matter, resulting in loss of particle kinetic energy. [1] [2] Stopping power is also interpreted as the rate at which a material absorbs the kinetic ...
Powder diffraction. Electron powder pattern (red) of an Al film with an fcc spiral overlay (green) and a line of intersections (blue) that determines lattice parameter. [1] X-ray powder diffraction of Y 2 Cu 2 O 5 and Rietveld refinement with two phases, showing 1% of yttrium oxide impurity (red tickers). Powder diffraction is a scientific ...
This relationship is used in engineering, for example to approximate a factor of two in power as 3 dB (actual is 3.0103 dB – see Half-power point), or to relate a kibibyte to a kilobyte; see binary prefix. [8] [9] The same numerical coincidence is responsible for the near equality between one third of an octave and one tenth of a decade. [10]