PHYS 650

1. Matter is measured in _____. a. kilograms b. joules c. electron volts d. rems ANS: A Matter is measured in kilograms DIF: Easy REF: page 3 OBJ: Recognize the unit of measurement for matter. 2. Energy is measured in _____. a. kilograms b. joules c. electron volts d. B or C ANS: D Energy is measured in joules or electron volts DIF: Moderate REF: page 4 OBJ: Recognize the unit of measurement for energy. 3. Atoms and molecules are the fundamental building blocks of _____. a. ener...

1. The radiation-and light-sensitive layer of radiographic film is the ________layer. A. base B. emulsion C. supercoat D. anticurl/antihalation 2. Spectral sensitivity refers to the color sensitivity of A. Radiographic film. B. Safelight filters. C. Intensifying screens. D. Safelight filters and intensifying screens. 3. According to the Gurney-Mott theory of latent image formation, electrons liberated by radiation or light exposure are attracted to the A. Bromide. B. Sensitivity s...

Chapter 5 -4th Edition /Chapter 6-3rd Edition 1. The projected shape of the unrestricted primary beam is A. square. B. rectangular. C. circular. D. elliptical. 2. A purpose of beam-restricting devices is to ____________ by changing the size and shape of the primary beam. A. Increase patient dose B. Decrease scatter radiation C. Increase density D. Decrease contrast 3. The most effective type of beam-restricting device is the A. Cone. B. Aperture diaphragm. C. Cylinder. D. Collima...

1. The most widely used support structure for the x-ray tube is the _____. a. C-arm b. floor-to-ceiling mount c. ceiling support system d. floor support system ANS: C The most widely used support structure for the x-ray tube is the ceiling support system. DIF: Easy REF: page 105 OBJ: Describe the general design of the support structure for the x-ray tube. 2. The external structure of the x-ray tube includes the support structure, the protective housing, and the _____. a. anode b. cat...

Questions From Chapters 7, 8 & 9 1. The radiation-and light-sensitive layer of radiographic film is the ________layer. A. base B. emulsion C. supercoat D. anticurl/antihalation 2. Spectral sensitivity refers to the color sensitivity of A. Radiographic film. B. Safelight filters. C. Intensifying screens. D. Safelight filters and intensifying screens. 3. According to the Gurney-Mott theory of latent image formation, electrons liberated by radiation or light exposure are attracted to ...

1. The projected shape of the unrestricted primary beam is A. square. B. rectangular. C. circular. D. elliptical. 2. A purpose of beam-restricting devices is to ____________ by changing the size and shape of the primary beam. A. Increase patient dose B. Decrease scatter radiation C. Increase density D. Decrease contrast 3. The most effective type of beam-restricting device is the A. Cone. B. Aperture diaphragm. C. Cylinder. D. Collimator. 4. Of the beam-restricting devices listed...

1. Matter is measured in _____. a. kilograms b. joules c. electron volts d. rems ANS: A Matter is measured in kilograms DIF: Easy REF: page 3 OBJ: Recognize the unit of measurement for matter. 2. Energy is measured in _____. a. kilograms b. joules c. electron volts d. B or C ANS: D Energy is measured in joules or electron volts DIF: Moderate REF: page 4 OBJ: Recognize the unit of measurement for energy. 3. Atoms and molecules are the fundamental building blocks of _____. a. ener...

1. The three main parts of the x-ray imaging system are the x-ray tube, _____, and _____. a. protective barrier, tabletop b. operating console, high voltage generator c. rectification circuit, operating console d. crane assembly, tabletop ANS: B The three main parts of the x-ray imaging system are the x-ray tube, operating console, and high voltage generator. DIF: Moderate REF: page 87 OBJ: Identify the components of the operating console positioned outside the x-ray examination room. ...

1. Grays in air are the measurement for x-ray _____. a. quantity b. exposure c. intensity d. all of the above ANS: D Grays are the measurement for x-ray quantity, exposure or intensity. DIF: Moderate REF: page 137 OBJ: Define radiation quantity and its relation to x-ray intensity. 2. The number of x-rays in the useful beam defines x-ray _____. a. kVp b. quality c. quantity d. mAs ANS: C The number of x-rays in the useful beam defines x-ray quantity. DIF: Moderate REF: page 137 O...