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XRAY 111. > Electromagnetic Radiation > Flashcards

Electromagnetic Radiation Flashcards

0
Q

Smallest quantity of any type of electromagnetic radiation

A

Photon

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1
Q

Never ending wave of energy

A

Energy continuum

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2
Q

Small bundle of energy; used to describe photons

A

Quantum

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3
Q

Which 3 characteristics fully describe a photon?

A

Velocity
Frequency
Wavelength

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4
Q

Are frequency and wavelength inversely or directly proportional?

A

Inversely

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5
Q

The speed of light; is constant

A

Velocity

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6
Q

How many cycles per second (Hertz)

A

Frequency

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7
Q

What type of wavelengths do x-rays have?

Frequencies?

A

Short wavelengths
&
High frequencies

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8
Q

Short wavelengths have ______ energy.

A

High

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9
Q

Higher frequencies have ________ wavelengths.

A

Shorter

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10
Q

What is the mathematical formula for velocity?

A

Velocity = frequency x wavelength

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11
Q

The distance between 2 successive crests in a wave

A

Wavelength

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12
Q

The number of crests or cycles per second; measured in hertz

A

Frequency

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13
Q

Are energy and frequency inversely or directly proportional?

A

Directly

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14
Q

What type of energy, frequency, and wavelength do gamma waves have?

A

Energy - Strongest
Frequency - Highest
Wavelength - Shortest

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15
Q

What type of energy, frequency, and wavelength do radiowaves have?

A

Energy - Lowest
Frequency - lowest
Wavelength - longest

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16
Q

What are the 3 types of electromagnetic spectrums?

A

Radio emissions
Visible light
Ionizing radiation

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17
Q

What are the 3 portions of electromagnetic spectrum that are most important to radiology?

A

Visible light
X-ray
High frequency radiowaves

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18
Q

Conditions under which radiographic or fluoroscopic image is viewed

A

Visible light

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19
Q

Low energies
Long wavelengths
Small frequencies

A

Radio emissions

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20
Q

Described in terms of frequency

A

Radio emissions

21
Q

Described in terms of wavelength

A

Visible light

22
Q

Occupies the smallest segment of the electromagnetic spectrum

A

Visible light

23
Q

Is characterized by energy (of the photon)

A

Ionizing radiation

24
Q

What is the distinction between x-rays and gamma rays?

A

Origin

25
Q

Man-made

A

X-rays

26
Q

Are naturally made

A

Gamma rays

27
Q

Is measured in angstroms (A°)

A

The wavelength of an x-ray

28
Q

Electromagnetic radiation with sufficient energy to remove electrons

A

Ionizing radiation

29
Q

What are the 3 comparisons of the electromagnetic spectrum areas?

A
  1. Photons react differently with matter due to the differences in frequency & wavelength
  2. Visible light photons tend to exhibit more wave nature than particle
  3. Photon of x-ray tend to exhibit more like particle(energy) than waves
30
Q

Phenomenon when photons exhibit both types of behavior

A

Wave particle duality

31
Q

Interact with metal rods

A

Radio (meters)

32
Q

Interact with similar objects such as hamburgers

A

Microwaves (in cm)

33
Q

Interact with rods & cones in the eye

A

Visible light (in micrometers)

34
Q

Interacts with molecules

A

Ultraviolet light

35
Q

Interacts with atoms and subatomic particles

A

X-rays

36
Q

Interaction with mother is comparable to the function of __________.

A

Wavelength

37
Q

Partial absorption of energy

A

Attenuation

38
Q

Energy dissipated and absorbed

A

Absorption

39
Q

Energy strikes an object & is rebound

A

Reflection

40
Q

What are the 3 degrees of interaction with light?

A
  1. Transparent
  2. Translucent
  3. Opaque
41
Q

Absorbs photons

A

Radiopaque (short-scale)

42
Q

Attenuates; Partial absorption of photons to a small degree; Photons are going through the body

A

Radiolucent (long-scale)

43
Q

Measured in eV (electron volts)

A

Energy

44
Q

Proton energy is ________ proportional to photon frequency.

A

Directly

45
Q

Photon energy is _________ proportional to photon wavelength.

A

Inversely

46
Q

Matter of energy can neither be created or destroyed, but may be transferred one to another

A

Einstein’s Law of mass energy conversions (E = MC^2)

47
Q

The law for force

A

Coulumb’s Law

48
Q

Law for energies

A

Inverse square law

49
Q

Name the 5 types of electromagnetic radiation waves in order from longer wavelengths to shorter wavelengths.

A 
Radiowaves
Microwaves
Visible light
Ultraviolet light
X-rays

XRAY 111. (2 decks)

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