Question

The X-ray experiment in the 1st year laboratory involves a high voltage (up to 28 kV) source of electrons which hit a target made of copper. This causes the electrons to decelerate, which results in the emission of "Bremstrahlung" X-rays, as well as characteristic peaks. The maximum X-ray energy is 28 keV. The door of the X-ray set is made of leaded glass. This attenuates the X-rays, according to the following equation: lo exp (-ut) Here l is the transmitted intensity, lo the incide t intensity, μ is the attenuation coefficient, and t the thickness of the glass. It for 28 e what fraction (Ilo) of incident X-rays of this energy would be transmitted through 6 mm of the glass? 1 photons, μ 1.42 m Select one or more O a, 0.02 % O b. 0.2% O c. 0.002 % O d.2% e. None

Answer 1