Chapter_009.rtf

Chapter_Bushong: Radiologic Science for Technologists, 10th Edition Chapter 09: X-ray Interaction with Matter Test Bank MULTIPLE CHOICE 1. The two primary forms of x-ray interaction in the diagnostic range are _____. a. Compton scattering and photoelectric absorption b. Compton scattering and pair production c. photoelectric absorption and coherent scattering d. coherent scattering and Thompson scattering ANS: A The two primary forms of x-ray interaction in the diagnostic range are Compton scattering and photoelectric absorption. DIF: Moderate REF: page 148 OBJ: Describe each of the five x-ray interactions with matter. 2. An incident x-ray interacts with an atom without ionization during _____. a. photoelectric absorption b. Compton scattering c. coherent scattering d. pair production ANS: C An incident x-ray interacts with an atom without ionization during coherent scattering. DIF: Moderate REF: page 148 OBJ: Describe each of the five x-ray interactions with matter. 3. An outer-shell electron is ejected and the atom is ionized during _____. a. photoelectric interactions b. Compton interactions This study source was downloaded by from CourseH on 08-19-2023 12:12:09 GMT -05:00 Harryson c. coherent scattering d. pair production ANS: B An outer-shell electron is ejected and the atom is ionized during Compton interactions. DIF: Moderate REF: page 149 OBJ: Describe each of the five x-ray interactions with matter. 4. Which x-ray interaction involves the ejection of the K-shell electron? a. coherent scattering b. Compton interaction c. pair production d. photoelectric absorption ANS: D Photoelectric absorption involves the ejection of the K-shell electron. DIF: Moderate REF: page 151 OBJ: Describe each of the five x-ray interactions with matter. 5. The scattered x-ray from a Compton interaction usually retains _____ of the energy of the incident photon. a. none b. little c. most d. all ANS: C The scattered x-ray from a Compton interaction usually retains most of the energy of the incident photon. DIF: Moderate REF: page 149 OBJ: Describe each of the five x-ray interactions with matter. 6. Compton scatter is directed at _____ angle from the incident beam. a. a 180° b. a 90° c. a 0° d. any ANS: D Compton scatter is directed at any angle from the incident beam