gxmo module 3
Study online at https://quizlet.com/_jms1mp
1. penetrate Related to the x - ray quality
2. absorb soak up, results in energy being scattered or converted into new scatter x
- rays
3. scatter occurs back in the direction of the incident x - ray beam
4. attenuation the total reduction in the number of x-rays remaining in a beam after
penetration through a given thickness of tissue
5. differential attenua- depending on mass, thickness, and density of matter. x-rays can penetrate
tion matter that is opaque to light
6. subject contrast size Differential attenuation is basis for ____ ______: determined by the ___,
shape ____, and x - ray attenuating characteristics of the subject who is being
examined and the energy of the x - ray beam
7. subject contrast the range of differences in the intensity of the x - ray beam after it exists
the patient
8. kvp tissue density subject contrast is affected by ___ and ____ __
9. air bone muscle fat subject contrast has effects on ___, ___, ___and ___:
10. intensity measured in milligray in air (mGy a ) and is called quality
11. mas kvp^2 intensity is proportional to ____ and ___
12. square of distance intensity is inversely proportional to
from the source
13. high short extermity is low kV = ____ contrast (____scale)
14. low abdomen has _____ subject contrast
, gxmo module 3
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15. high low long chest has ____ subject contrast ____ contrast ___ scale
16. speed The sensitivity of the screen - film combination to x - rays and light
17. 50 slow speed is
18. contrast resolution Ability to distinguish between and to image similar tissues
19. 1200 fast speed is
20. manifest observable image that is formed when the latent image undergoes proper
chemical processing
21. optical density Degree of blackening of a radiograph
22. spatial resolution sharpness of structural lines on a radiograph ; ability to image small objects
that have high subject contrast
23. fog Unintended optical density on a radiograph that reduces contrast through
light or chemical contamination
24. phosphor layer the active layer of the screen
25. light phosphors emit __ during stimulation by x-rays
26. 10 Intensifying screens use a rare earth phosphor that is a fluorescent material
that emits light photons within ____ seconds after stimulation by x - rays
27. latent photons from phosphor are converted to a _________ image on the film
using silver halide crystals as a storage medium
28. flourescence Emission of visible light only during stimulation
29. blurring The use of screens results in lower patient dose but has the disadvantage
of causing a slight ______ of the image
Study online at https://quizlet.com/_jms1mp
1. penetrate Related to the x - ray quality
2. absorb soak up, results in energy being scattered or converted into new scatter x
- rays
3. scatter occurs back in the direction of the incident x - ray beam
4. attenuation the total reduction in the number of x-rays remaining in a beam after
penetration through a given thickness of tissue
5. differential attenua- depending on mass, thickness, and density of matter. x-rays can penetrate
tion matter that is opaque to light
6. subject contrast size Differential attenuation is basis for ____ ______: determined by the ___,
shape ____, and x - ray attenuating characteristics of the subject who is being
examined and the energy of the x - ray beam
7. subject contrast the range of differences in the intensity of the x - ray beam after it exists
the patient
8. kvp tissue density subject contrast is affected by ___ and ____ __
9. air bone muscle fat subject contrast has effects on ___, ___, ___and ___:
10. intensity measured in milligray in air (mGy a ) and is called quality
11. mas kvp^2 intensity is proportional to ____ and ___
12. square of distance intensity is inversely proportional to
from the source
13. high short extermity is low kV = ____ contrast (____scale)
14. low abdomen has _____ subject contrast
, gxmo module 3
Study online at https://quizlet.com/_jms1mp
15. high low long chest has ____ subject contrast ____ contrast ___ scale
16. speed The sensitivity of the screen - film combination to x - rays and light
17. 50 slow speed is
18. contrast resolution Ability to distinguish between and to image similar tissues
19. 1200 fast speed is
20. manifest observable image that is formed when the latent image undergoes proper
chemical processing
21. optical density Degree of blackening of a radiograph
22. spatial resolution sharpness of structural lines on a radiograph ; ability to image small objects
that have high subject contrast
23. fog Unintended optical density on a radiograph that reduces contrast through
light or chemical contamination
24. phosphor layer the active layer of the screen
25. light phosphors emit __ during stimulation by x-rays
26. 10 Intensifying screens use a rare earth phosphor that is a fluorescent material
that emits light photons within ____ seconds after stimulation by x - rays
27. latent photons from phosphor are converted to a _________ image on the film
using silver halide crystals as a storage medium
28. flourescence Emission of visible light only during stimulation
29. blurring The use of screens results in lower patient dose but has the disadvantage
of causing a slight ______ of the image
