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The EPA considers radon to be the second leading cause of _____ in the United States.

Which of the following will result in higher attenuation? Increase in x-ray energy Increase in atomic number Increase in mass density

At what x-ray energies is the following interaction prominent? Pair production(1).jpg

What type of interaction is demonstrated in the following diagram? Compton scatter(2).png

Which of the following are early tissue effects of exposure to ionizing radiation? Diffuse redness of the skin Organ atrophy Shedding of the outer layer of skin Intestinal disorders

Which of the following has no effect on the production of Compton scatter in the patient’s body?

Which of the following relates the ionization produced in a small cavity within an irradiated medium to the energy absorbed in that medium as a result of radiation exposure?

What are the by-products of the following type of interaction? Photodisintegration(2).jpg

In following the cardinal rules of radiation protection in reducing exposure to the patient, radiographers should: Reduce the amount of the x-ray “beam on” time Utilize as much distance as warranted between the x-ray tube and the patient for the examination Place a shield between the radiographer and the source of radiation

What type of interaction is demonstrated in the following diagram? Photoelectric absorption(1).jpg