In: Physics
Identify the fundamental mechanisms for x-ray absorption and the relationship for the attenuation of a narrow beam of photons. Define the linear attenuation coefficient and half value thickness. For a typical steel identify how many half-layer values are needed to reduce transmitted energy to 3.1%. Select an example of a steel and determine this samples physical thickness needed to reduce radiation to 3.1 % at 100 keV. [Be sure to identify the steel used including the details of composition and attenuation data used in your calculation.]