edition by terri l. fauber|all chapters covered 1-
10(complete answers)
,table of contents
chapter 01: radiation and its discovery .................................................................. 3
chapter 02: the x-ray beam .................................................................................. 17
chapter 03: image formation and radiographic quality ........................................ 43
chapter 04: digital imaging .................................................................................. 69
chapter 05: film-screen imaging......................................................................... 108
chapter 06: exposure technique factors ............................................................. 137
chapter 07: scatter control ................................................................................. 164
chapter 08: exposure technique selection .......................................................... 187
chapter 09: image evaluation ............................................................................ 210
chapter 10: dynamic imaging: fluoroscopy ........................................................ 222
,chapter 01: radiation and its discovery
fauber: radiographic imaging and exposure, 6th edition
multiple choice
1. when were x-rays discovered?
a. october 8, 1985
b. november 8, 1895
c. january 23, 1896
d. august 15, 1902
ans>>b
x-rays were discovered by wilhelm conrad roentgen on november 8, 1895.
ref: p.1
2. what type of tube was roentgen working with in his lab when x-rays were
discovered?
a. crookes tube
b. fluorescent tube
c. high-vacuum tube
d. wurzburg tube
ans>>a
roentgen was working with a low-vacuum tube known as a crookes tube.
ref: p.2
3. which of the following terms could be defined as the instantaneous
production of light only during an interaction between a type of energy and some
element or compound?
a. phosphorescence
b. afterglow
,c. glowing
d. fluorescence
ans>>d
fluorescence is the instantaneous emission of light from a material due to the
interaction with some type of energy.
ref: p.2
4. barium platinocyanide was the:
a. type of dark paper roentgen used to darken his laboratory.
b. material roentgen used to produce the first radiograph of his wife’s hand.
c. metal used to produce the low-vacuum tube.
d. fluorescent material that glowed when the tube was energized.
ans>>d
a piece of paper coated with barium platinocyanide glowed each time roentgen
energized his tube.
ref: p.2
5. the first radiograph produced by roentgen, of his wife’s hand, required an
exposure time of:
a. 15 s.
b. 150 s.
c. 15 min.
d. 150 min.
ans>>c
,it took a 15-min exposure time to produce the first radiograph.
ref: p.3
6. the letter x in x-ray is the symbol for:
a. electricity.
b. the unknown.
c. penetrating.
d. discovery.
ans>>b
the letter x represents the mathematical symbol of the unknown.
ref: p.3
7. the first nobel prize for physics was received in 1901 by:
a. marie curie.
b. william crookes.
c. wilhelm roentgen.
d. albert einstein.
ans>>c
wilhelm roentgen received the first nobel prize for physics in 1901.
ref: p.4
8. x-rays were at one time called:
a. becquerel rays.
b. roentgen rays.
c. z-rays.
d. none of the above.
ans>>b
,x-rays were at one time called roentgen rays.
ref: p.4
9. erythema, an early sign of biologic damage due to x-ray exposure, is:
a. reddening of the skin.
b. a malignant tumor.
c. a chromosomal change.
d. one of the most serious effects of x-ray exposure.
ans>>a
erythema is reddening and burning of the skin, an early and less serious effect of
exposure to large doses of x-radiation.
ref: p.5
10. x-rays have which of the following properties?
a. electrical
b. magnetic
c. chemical
d. a and b
e. a and c
ans>>d
x-rays, a type of electromagnetic radiation, have both electrical and magnetic
properties.
ref: p.5
11. the distance between two successive crests of a sine wave is known as:
, a. an angstrom.
b. frequency.
c. the greek letter nu.
d. wavelength
ans>>d
the distance between two successive crests or troughs of a sine wave is the
measure of its wavelength.
ref: p.6
12. x-rays used in radiography have wavelengths that are measured in:
a. angstroms.
b. millimeters.
c. centimeters.
d. hertz.
ans>>a
x-rays in the range used in radiography have wavelengths that are so short that
they are measured in angstroms.
ref: p.6
13. the frequency of a wave is the number of waves passing a given point per
given unit of time. frequency is measured in:
a. angstroms.
b. hertz.
c. inches.
d. ev.
ans>>b