Xrayattenuation

2024年2月23日 — The attenuation coefficient is a measure of how much the incident energy beam (e.g. ultrasound or x-rays) is weakened by the material it is ...

The SI unit of mass attenuation coefficient is the square metre per kilogram (m2/kg). Other common units include cm2/g (the most common unit for X-ray mass ...

When X-rays penetrate material, the beam intensity decreases along the beam path. As schematically shown in Fig. 6.7, this is due to different physical effects.

The linear attenuation coefficient (µ) describes the fraction of a beam of x-rays or gamma rays that is absorbed or scattered per unit thickness of the absorber ...

由 V Thomsen 著作 · 2005 · 被引用 26 次 — X-rays are attenuated as they pass through matter. That is, the intensity of an X-ray beam decreases the farther it penetrates into matter.

The depth into the material measured along the surface normal where the intensity of x-rays falls to 1/e of its value at the surface.

Lower energy x-rays form image with higher contrast because of high attenuation coefficient. See the figure which shows the contrast of bones in an x-ray at two ...

Tables and graphs of the photon mass attenuation coefficient μ/ρ and the mass energy-absorption coefficient μen/ρ are presented for all of the elements Z = 1 to ...