• The linear attenuation coefficient, attenuation coefficient, or narrow-beam attenuation coefficient characterizes how easily a volume of material can be...
    16 KB (2,226 words) - 01:06, 19 September 2024
  • Thumbnail for Mass attenuation coefficient
    The mass attenuation coefficient, or mass narrow beam attenuation coefficient of a material is the attenuation coefficient normalized by the density of...
    8 KB (909 words) - 23:21, 10 May 2024
  • absorption coefficient or molar attenuation coefficient (ε) is a measurement of how strongly a chemical species absorbs, and thereby attenuates, light at...
    6 KB (760 words) - 18:58, 26 June 2024
  • attenuation is usually measured in units of decibels per unit length of medium (dB/cm, dB/km, etc.) and is represented by the attenuation coefficient...
    21 KB (2,642 words) - 01:54, 14 November 2024
  • Beer–Lambert law states that the total attenuation can be obtained by integrating the attenuation coefficient over small slices dz of the beamline: A...
    27 KB (3,878 words) - 05:17, 14 November 2024
  • Extinction coefficient refers to several different measures of the absorption of light in a medium: Attenuation coefficient, sometimes called "extinction...
    756 bytes (116 words) - 20:48, 5 March 2023
  • Thumbnail for Optical depth
    is the attenuation coefficient or Napierian attenuation coefficient of that material at z, and if α(z) is uniform along the path, the attenuation is said...
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  • of the scattering spectrum. Attenuation of light in deep biological tissue depends on the effective attenuation coefficient ( μ e f f {\displaystyle \mu...
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  • telecommunications, the term attenuation constant, also called attenuation parameter or attenuation coefficient, is the attenuation of an electromagnetic wave...
    16 KB (2,353 words) - 16:25, 20 October 2024
  • decadic attenuation coefficient of that material at z. If a(z) is uniform along the path, the attenuation is said to be a linear attenuation, and the...
    21 KB (2,915 words) - 01:54, 14 November 2024
  • Thumbnail for Absorption (electromagnetic radiation)
    the absorption and attenuation coefficients, respectively "Extinction" in astronomy, which is equivalent to the attenuation coefficient Other measures of...
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  • material- and energy-dependent. Beer's Law Mean free path Attenuation coefficient Attenuation (electromagnetic radiation) Radiation length S. Eidelman;...
    2 KB (182 words) - 20:26, 10 August 2023
  • In acoustics, Stokes's law of sound attenuation is a formula for the attenuation of sound in a Newtonian fluid, such as water or air, due to the fluid's...
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  • Thumbnail for Transmittance
    the beam of light through the material sample. Attenuation cross section and molar attenuation coefficient are related by ε i = N A ln ⁡ 10 σ i , {\displaystyle...
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  • effect can be quantified through the Stokes's law of sound attenuation. Sound attenuation may also be a result of heat conductivity in the media as has...
    14 KB (1,627 words) - 01:30, 16 September 2024
  • attenuation coefficient, also called mass extinction coefficient, is the attenuation coefficient divided by density; see mass attenuation coefficient...
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  • Thumbnail for Scattering
    many different concepts, including scattering cross section (σ), attenuation coefficients, the bidirectional scattering distribution function (BSDF), S-matrices...
    30 KB (3,723 words) - 19:10, 21 November 2024
  • linear attenuation coefficient, μ/ρ is the mass attenuation coefficient and ρ is the density of the material. The mass attenuation coefficient can be...
    17 KB (2,378 words) - 08:48, 21 September 2023
  • Thumbnail for Reflectance
    Fresnel reflection coefficient, which is the ratio of the reflected to incident electric field; as such the reflection coefficient can be expressed as...
    11 KB (1,272 words) - 01:00, 3 November 2024
  • μ {\displaystyle \mu } is the linear attenuation coefficient, which is the sum of the attenuation coefficients of the various contributions: μ = μ p...
    16 KB (2,229 words) - 21:06, 3 November 2024
  • unit (HU) scale is a linear transformation of the original linear attenuation coefficient measurement into one in which the radiodensity of distilled water...
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  • Thumbnail for Opacity
    "opacity" is another term for the mass attenuation coefficient (or, depending on context, mass absorption coefficient, the difference is described here) κ...
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  • Thumbnail for Electromagnetic absorption by water
    minimum at 418 nm, at which wavelength the attenuation coefficient is about 0.0044 m−1, which is an attenuation length of about 227 meters. These values...
    28 KB (3,079 words) - 17:12, 15 November 2024
  • attenuation of seismic energy in the Earth Attenuation (or verb attenuate) may also refer to: Attenuation (botany) Attenuation (brewing), the percent of sugar converted...
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  • Thumbnail for Electromagnetic shielding
    \infty } this coefficient goes to 0 (perfect shielding). When μ r ≫ 1 {\displaystyle \mu _{\text{r}}\gg 1} , then the attenuation coefficient takes on the...
    21 KB (2,527 words) - 23:09, 11 September 2024
  • Thumbnail for Water clarity
    the beam attenuation. Beam attenuation is essentially the opposite of light transmission. Clearer water with a low beam attenuation coefficient will have...
    34 KB (3,708 words) - 01:17, 5 December 2023
  • Thumbnail for Ocean optics
    us. Attenuation in water, also called beam attenuation or the beam attenuation coefficient, is the sum of all absorption and scattering. Attenuation of...
    29 KB (2,675 words) - 18:26, 20 October 2024
  • Thumbnail for Longitudinal wave
    Thompson in a Wave Motion publication. In viscoelastic materials, the attenuation coefficients per length   α ℓ   {\displaystyle \ \alpha _{\ell }\ } for longitudinal...
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  • Thumbnail for Penetration depth
    positive number describes attenuation (reduction of the field) or gain; this is usually obvious from the context. The attenuation constant for an electromagnetic...
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  • {\displaystyle \mu (x,y)} is the attenuation coefficient as a function of position. Therefore, generally the total attenuation p {\displaystyle p} of a ray...
    22 KB (2,819 words) - 00:04, 25 June 2024