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radiology > Rad 3 > Flashcards

Rad 3 Flashcards

1
Q

Two parts of an atom

A

Central nucleus and the orbiting electrons

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2
Q

negatively charged particles which have very little mass

A

electron

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3
Q

well-defined paths that electrons travel in

A

orbits or shells

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4
Q

production of ions or the process of converting an atom into ions

A

ionization

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5
Q

emission and propogation of energy through space or a substance in the form of waves or particles

A

radiation

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6
Q

the process by which certain unstable atoms or elements undergo spontaneous disintegration or decay in an effort to attain a more balanced nuclear state

A

radioactivity

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7
Q

radiation that is capable of producing ions by removing or adding an electron to an atom

A

ionizing radiation

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8
Q

tiny particles of matter that possess mass and travel in straight lines and at high speeds

A

particulate radiation

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9
Q

the propagation of wavelike energy through space or matter consists of manmade and naturally occurring forms of radiation, organized on the electromagnetic spectrum

A

electromagnetic radiation

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10
Q

the concept which characterizes electromagnetic radiations as discrete bundles of energy called photons or quanta (no mass, travel at speed of light, and move through space in a straight line)

A

particle concept

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11
Q

the concept where electromagnetic radiation as waves and focuses on the properties of velocity, wavelength, and frequency

A

wave concept

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12
Q

contains the indicator light, time, kilovoltage, milliamperage

A

control panel

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13
Q

suspends the X-ray tube head

A

extension arm

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14
Q

tightly sealed, heavy metal housing

A

tube head

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15
Q

surrounds the X-ray tube and transformers, protects tube and grounds high voltage components

A

metal housing

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16
Q

surrounds X-ray tube and transformers, prevents overheating and sparking

A

insulating oil

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17
Q

permis exit of x-rays from tube head, seals the oil and filters x-ray beam

A

tubehead seal

18
Q

heart of generating system

A

X-ray tube/ glass vacuum tube

19
Q

alters voltage of incoming electricity

A

transformer

20
Q

filter out non penetrating longer wavelength x-rays

A

aluminum disks

21
Q

restricts size of x-ray beam

A

lead collimator

22
Q

aims and shapes the x-ray beam

A

PID

23
Q

measures several inches long by 1 inch in diameter

A

a glass vacuum tube

24
Q

what does the glass vacuum tube include

A

leaded-glass housing
cathode
anode

25
Q

this prevents x-rays from escaping in all directions

A

leaded glass housing

26
Q

part of leaded glass housing that permits the x-ray beam to exit the tube

A

the window

27
Q

the negative electrode

A

cathode

28
Q

what produces electrons necessary to generate x-rays

A

the cathode

29
Q

the device that produces electrons when heated

A

tungsten filament

30
Q

this focuses electrons in a narrow beam and directs the beams toward the tungsten target

A

molybdenum cup

31
Q

the positive electrode

A

anode

32
Q

converts electrons into x-ray photons

A

anode

33
Q

what device is the anode

A

the tungsten target

34
Q

measurement of the number of electrons moving through a conductor

A

amperage

35
Q

measurement of electrical force that causes electrons to move from a negative to a positive pole

A

Volts

36
Q

filament current that determines the number of e- in a current

A

mA or millamperage

37
Q

tube current that controls the force that propels e-

A

kVp or kilovolts

38
Q

amount of time x-rays are being produced

A

exposure time

39
Q

bundles of energy/ x-rays

A

photons

40
Q

a path of electrical current

A

circuit

radiology (3 decks)

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