Ripping an electron from an atom is called ionization. X-rays and Gamma rays are both forms of electromagnetic radiation. Half-life is defined as the amount of time it takes for a source material to lose one half of its total activity. Lead is a good shielding material and is often used as a means of protection from radiation. Cobalt and Iridium are two of the primary sources of gamma rays used in industrial radiography.
Electrons colliding with a target material create X-rays.
T. or F. Complete this test to the best of your ability. It will not be graded. This information is used to determine what level the class is when we begin and end. Many times students come into the classes with experience of prior knowledge of NDT subjects. This information is valuable to the instructor.