GXMO OHIO
The image receptor (IR) usually consists of the:
A. x-ray tube and the tube stand
B. cassette and the film
C. control console and the transformer
D. tube locks and the detent - CORRECT ANSWER-B. cassette and the film
collimation and light beam restriction does what? - CORRECT ANSWER-decreases
irradiated tissue volume =decreases scatter radiation production which results in
increased image contrast-and decreased receptor exposure-reduces pt exposure-
reduces occupational exposure----IMAGE quality improves with smaller collimated
fields...as long as anatomic area isnt compromised
name some patient positioning aids or devices to assist in patient positioning and or
immobilization - CORRECT ANSWER-radiolucent sponges, immobilization devices like
sandbags, retention bands, tape, PB devices, commercially designed equipment,
mummification
The mediium that transforms the xray beam into a visible image; radiographic film or a
phosphorescent screen - CORRECT ANSWER-Image Receptor (IR)
Penetrating, ionizing electromagnetic
radiation having a wavelength much
shorter than visible light - CORRECT ANSWER-XRAY
Name some properties of XRAYS - CORRECT ANSWER-1. highly penetrating, invisible
rays;
2. electrically neutral;
3. polyenergetic/heterogenous energies;
4. liberate minute amounts of heat on
passing through matter;
5. travel ordinarily in straight lines;
6. travel at the speed of light;
7. ionizes gases indirectly by removing
electrons;
8. causes fluorescence in certain crystals;
9. cannot be focused by a lens;
10. affects photographic film;
11. produces chemical & biologic changes;
12. produces secondary & scatter
radiation.
The image receptor (IR) usually consists of the:
A. x-ray tube and the tube stand
B. cassette and the film
C. control console and the transformer
D. tube locks and the detent - CORRECT ANSWER-B. cassette and the film
collimation and light beam restriction does what? - CORRECT ANSWER-decreases
irradiated tissue volume =decreases scatter radiation production which results in
increased image contrast-and decreased receptor exposure-reduces pt exposure-
reduces occupational exposure----IMAGE quality improves with smaller collimated
fields...as long as anatomic area isnt compromised
name some patient positioning aids or devices to assist in patient positioning and or
immobilization - CORRECT ANSWER-radiolucent sponges, immobilization devices like
sandbags, retention bands, tape, PB devices, commercially designed equipment,
mummification
The mediium that transforms the xray beam into a visible image; radiographic film or a
phosphorescent screen - CORRECT ANSWER-Image Receptor (IR)
Penetrating, ionizing electromagnetic
radiation having a wavelength much
shorter than visible light - CORRECT ANSWER-XRAY
Name some properties of XRAYS - CORRECT ANSWER-1. highly penetrating, invisible
rays;
2. electrically neutral;
3. polyenergetic/heterogenous energies;
4. liberate minute amounts of heat on
passing through matter;
5. travel ordinarily in straight lines;
6. travel at the speed of light;
7. ionizes gases indirectly by removing
electrons;
8. causes fluorescence in certain crystals;
9. cannot be focused by a lens;
10. affects photographic film;
11. produces chemical & biologic changes;
12. produces secondary & scatter
radiation.
