Xrayattenuation

2023年10月27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 ...

由 MH McKetty 著作 · 1998 · 被引用 97 次 — Attenuation is the reduction of the intensity of an x-ray beam as it traverses matter. The reduction may be caused by absorption or by ...

由 V Thomsen 著作 · 2005 · 被引用 25 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 ...

2009年9月17日 — Abstract. Tables and graphs of the photon mass attenuation coefficient μ/ρ and the mass energy-absorption coefficient μen/ρ are presented for ...