Textbook ch. 2 rad physics

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Last updated 8:01 AM on 9/28/26
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50 Terms

1
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Which electrons have the greatest binding energy?
K-shell
2
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What type of electrical charge does the electron carry?
Negative
3
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Which term describes two or more atoms that are joined by chemical bonds?
Molecule
4
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Which statement describes ionization?
Atom that loses an electron
5
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Which term describes the process by which unstable atoms undergo spontaneous disintegration in an effort to attain a more balanced nuclear state?
Radioactivity
6
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Which is not a type of particulate radiation?
Nucleons
7
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Which is not a type of electromagnetic radiation?
Electrons
8
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Which statement is incorrect?
Wavelength is the distance between waves.
9
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Which statement is incorrect?
X-rays travel at the speed of sound.
10
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Which statement is correct?

X-ray has more energy than light

11
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In Figure 2-27, identify structure 11.
In Figure 2-27, identify structure 11.
Cathode
12
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In Figure 2-27, identify structure 12.
In Figure 2-27, identify structure 12.
Filament
13
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In Figure 2-27, identify structure 13.
In Figure 2-27, identify structure 13.
Focusing cup
14
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In Figure 2-27, identify structure 14.
In Figure 2-27, identify structure 14.
Tungsten target
15
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In Figure 2-27, identify structure 15.
In Figure 2-27, identify structure 15.
Anode
16
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In Figure 2-27, identify structure 16.
In Figure 2-27, identify structure 16.
Copper stem
17
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In Figure 2-27, identify structure 17.
In Figure 2-27, identify structure 17.
X-ray beam
18
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In Figure 2-27, identify structure 18.
In Figure 2-27, identify structure 18.
Glass envelope
19
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In Figure 2-27, identify structure 19.
In Figure 2-27, identify structure 19.
Lead glass housing
20
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In Figure 2-27, identify structure 20.
In Figure 2-27, identify structure 20.
X-rays
21
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In Figure 2-28, identify structure 21.
In Figure 2-28, identify structure 21.
Aluminum disks
22
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In Figure 2-28, identify structure 22.
In Figure 2-28, identify structure 22.
Lead collimator
23
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In Figure 2-28, identify structure 23.
In Figure 2-28, identify structure 23.
Position-indicating device (PID)
24
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In Figure 2-28, identify structure 24.
In Figure 2-28, identify structure 24.
Seal
25
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In Figure 2-28, identify structure 25.
In Figure 2-28, identify structure 25.
X-ray tube
26
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In Figure 2-28, identify structure 26.
In Figure 2-28, identify structure 26.
Insulating oil
27
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In Figure 2-28, identify structure 27.
In Figure 2-28, identify structure 27.
Tubehead seal
28
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In Figure 2-28, identify structure 28.
In Figure 2-28, identify structure 28.
Metal housing
29
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Which regulates the flow of electrical current to the filament of the x-ray tube?
Low-voltage circuit
30
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Which is used to increase the voltage in the high-voltage circuit?
Step-up transformer
31
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Which does not occur when the high-voltage circuit is activated?

unit has an audible and visible signal

32
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Which is the location where x-rays are produced?
Positive anode
33
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Which is the location where thermionic emission occurs?
Negative cathode
34
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Which accounts for 70% of all the x-ray energy produced at the anode?
General radiation
35
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Which occurs only at 70 kV or higher and accounts for a very small part of the x-rays produced in the dental x-ray machine?
Characteristic radiation
36
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Which describes primary radiation?
Radiation that exits the tubehead
37
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Which describes scatter radiation?

Radiation thats been deflected from its path by interacting with matter

38
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Which type of scatter occurs most often with dental x-rays?
Compton
39
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<p>Identify the x-radiation interaction with matter in Figure 2-29.</p>

Identify the x-radiation interaction with matter in Figure 2-29.

Photoelectric effect

40
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Identify the x-radiation interaction with matter in Figure 2-30.
Identify the x-radiation interaction with matter in Figure 2-30.
Compton scatter
41
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Identify the x-radiation interaction with matter in Figure 2-31.
Identify the x-radiation interaction with matter in Figure 2-31.
Coherent scatter
42
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Identify the x-radiation interaction with matter in Figure 2-32.
Identify the x-radiation interaction with matter in Figure 2-32.
No interaction
43
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The interaction of x-radiation with matter illustrated in Figure 2-29 demonstrates:
The interaction of x-radiation with matter illustrated in Figure 2-29 demonstrates:
No scatter; ionization
44
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The interaction of x-radiation with matter illustrated in Figure 2-30 demonstrates:
The interaction of x-radiation with matter illustrated in Figure 2-30 demonstrates:
Scatter; ionization
45
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The interaction of x-radiation with matter illustrated in Figure 2-31 demonstrates:
The interaction of x-radiation with matter illustrated in Figure 2-31 demonstrates:
Scatter; no ionization
46
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The interaction of x-radiation with matter illustrated in Figure 2-32 demonstrates:
The interaction of x-radiation with matter illustrated in Figure 2-32 demonstrates:
No scatter; no ionization
47
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Which has the shortest wavelength?
Which has the shortest wavelength?
D
48
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Which has the longest wavelength?
Which has the longest wavelength?
A
49
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Which has the lowest frequency?
Which has the lowest frequency?
A
50
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Which has the highest frequency?
Which has the highest frequency?
D