# Linear attenuation coefficient definition

Linear attenuation coefficient or “µ” means the quotient of dN/N divided by dl when dN/N is the fraction of uncharged ionizing radiation that experience interactions in traversing a distance dl in a specified material.

## Examples of Linear attenuation coefficient in a sentence

• Its estimate (Sn) is calculated using the following expression: where: CS = Contract scale.μw = Linear attenuation coefficient of water.s = Estimated standard deviation of the CTN of picture elements in a specified area of the CT image.

• Linear attenuation coefficient is known as the probability of interaction between gamma rays and shielding material per unit path length and represents the main characterizing factor for the penetration and diffusion of gamma rays in a shielding medium (µ) .

• Linear attenuation coefficient dependant on material density and effective atomic number varies with the energy level applied, phenomena exploit by dual energy radiography.

• Linear attenuation coefficient can be determined using Beer-Lambert equation.

• CTNw= CTN of water.µx = Linear attenuation coefficient of the material of interest.

• CT number" means the number used to represent the x-ray attenuation associated with each elemental area of the CT image.where: k = A constant5μx = Linear attenuation coefficient of the material of interest.μw = Linear attenuation coefficient of water.

• During SCE’s DPAG meeting, Energy Division staff asked if SCE would consider, in the event a grid need does not arise, rolling over the excess budget from one tranche to the next.

• Linear attenuation coefficient or u means the quotient of dN/N divided by d1 when dN/N is the fraction of unchanged ionizing radiation that experience interactions in traversing a distance d1 in a specified material.

• Its estimate (Sn) is calculated using the following expression: S = 100 ⋅ μx ⋅ sn μw where µx = Linear attenuation coefficient of the material of interest, µw = Linear attenuation coefficient of water, and s = Estimated standard deviation of the CTN of picture elements in a specified area of the CT image.

• Contrast scale" means the change in the linear attenuation coefficient per CTN relative to water, that is: CS = where:μx − μw(CTN ) x − (CTN ) w μx = Linear attenuation coefficient of the material of interest.μw = Linear attenuation coefficient of water.

## Related to Linear attenuation coefficient

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