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RT:101 PHYSICS⚛️ > Chapter 01 Concepts of Radiologic Science > Flashcards

Chapter 01 Concepts of Radiologic Science Flashcards

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1
Q

Anything that occupies space & has mass?

A

Matter

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2
Q

The building blocks of matter

A

Atoms

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3
Q

The quantity of matter as described by its
energy equivalence
 The distinguishing characteristic of matter

A

Mass

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4
Q

The force exerted on a body under the
influence of gravity

A

Weight

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5
Q

Material substance with mass of which
physical objects are composed

A

Matter

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6
Q

The fundamental, complex, building blocks
of matter

A

Atoms & Molecules

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7
Q

The ability to do work
 SI Unit: joules (J)
 In Radiology: electron volt (eV)

A

Energy

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8
Q

The ability to do work by virtue of position

A

Potential Energy

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9
Q

The energy in motion

A

Kinetic Energy

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10
Q

The energy released by a chemical reaction

A

Chemical Energy

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11
Q

The work that can be done when an electron
moves through an electric potential
difference (V)

A

Electrical Energy

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12
Q

The energy in motion at the molecular level

A

Thermal/Heat Energy

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13
Q

The energy that is contained within the
nucleus of an atom

A

Nuclear Energy

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14
Q

The type of energy that is used in an x-rays

A

Electromagnetic Energy

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15
Q

Albert Einstein
 States that matter and energy are
interchangeable

A

Theory of Relativity

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16
Q

Formula: E=mc2

A

Matter-Energy Equivalence

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17
Q

The energy emitted & transferred through
space

A

Radiation

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18
Q

Radiated by the sun

A

Visible light

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19
Q

Matter that intercepts & absorbs radiation

A

Exposed/Irradiated

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20
Q

It causes sunburn

A

UV Light

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21
Q

Any type of radiation that is capable of
removing an orbital electron from the atom
with which it interacts
 Examples: x-rays, gamma rays & UV light

A

Ionizing Radiation

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22
Q

The removal of an electron from an atom

A

Ionization

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23
Q

Examples: alpha & beta particles

A

Particulate-type Ionizing Radiation

24
Q

NCRP

A

National Council on Radiation Protection &
Measurements

25
Q

MSCT

A

Multislice Spiral Computed Tomography

26
Q

The emission of visible light only during
stimulation

A

Fluorescence

27
Q

Roentgen received Nobel Prize in Physics

A

1901

28
Q

He published and produced the first medical
x-ray image
 The first x-ray examination

A

February 1896

29
Q

Uses x-ray film & x-ray tube mounted from
the ceiling
 Provides fixed images

A

Radiography

30
Q

Conducted with an x-ray tube located under
the examination table
 Provide moving images

A

Fluoroscopy

31
Q

Measured in kVp

A

X-ray Voltage

32
Q

Measured in mA

A

X-ray Current

33
Q

Caused: long exposure time

A

Image Blur

34
Q

He demonstrated the use of radiographic
intensifying screen

A

Michael Pupin (1896)

35
Q

He demonstrated the use of double emulsion
film

A

Charles L. Leonard (1904)

36
Q

He developed fluoroscope
 Original Fluorescent Material: Barium
platinocyanide
 Most Recent: Zinc cadmium sulfide &
calcium tungstate

A

Thomas A. Edison (1898)

37
Q

The first x-ray fatality

A

Clarence Dally (1904)

38
Q

He demonstrated the first application of
collimation & filtration

A

William Rollins

39
Q

He introduced interrupterless transformer
 Snook transformer

A

H.C. Snook (1907)

40
Q

He introduced coolidge x-ray tube

A

William D. Coolidge (1913)

41
Q

MEG

A

Magnetoencephalography

42
Q

PET & CT were developed

A

1970

43
Q

MRI become an accepted modality

A

1980

44
Q

It absorbs low energy x-rays
 Aluminum or copper

A

Filtration

45
Q

It restricts the useful x-ray beam
 It reduces scatter radiation
 It improves image contrast
 Example: adjustable light-locating
collimators (common)

A

Collimation

46
Q

It reduces x-ray exposure by more than 95%

A

Intensifying Screen

47
Q

Lead-impregnated material
 Examples: gloves & apron

A

Protective Apparel

48
Q

It is used with all persons of childbearing
age

A

Gonadal Shielding

49
Q

Lead-lined with a leaded-glass window
 Example: radiographic control console

A

Protective Barriers

50
Q

ARRT

A

American Registry of Radiologic
Technologists

51
Q

He invented stationary grid
 “glitterblende”

A

Gustav Bucky (1913)

52
Q

He invented moving grid

A

He invented moving grid

53
Q

Potter-Bucky grid was introduced

A

1921

54
Q

He demonstrated at Bell Telephone
Laboratories

A

Light Amplifier (1946)

55
Q

Light amplifier was adapted for fluoroscopy

A

1950

56
Q

Diagnostic UTZ & gamma camera appeared

A

1960

RT:101 PHYSICS⚛️ (2 decks)

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