Test 1 Flashcards

(53 cards)

1
Q

ALARA

A

As Low As Reasonable Achievable

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2
Q

Transformation of energy is?

A

Radiation

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3
Q

What kind of wave length do x-rays have?

A

Short

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4
Q

What is the most dangerous type of beam interaction?

A

Compton Scatter

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5
Q

Where does the x-ray come from when it is a diagnostic x-ray?

A

Above

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6
Q

Where does the x-ray come from when it is a fluoroscopy x-ray?

A

Below

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7
Q

What did Albert Einsten create?

A

Photoelectric Effect

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8
Q

What did Wilham Roentgen do?

A

Discovered x-ray

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9
Q

What did Thomas Edison do?

A

Fluoroscope tube; live x-ray

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10
Q

Characteristic x-ray produces what?

A

Ionizing radiation

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11
Q

Bremsstrahlung x-ray produces what?

A

ion beams, also makes them change direction

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12
Q

Name the x-ray internactions

A

classical, compton, photoelectric, uninterrupted

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13
Q

Name the types of x-rays?

A

characteristic and bremsstrahlung

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14
Q

Homogeneous

A

same

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15
Q

Heterogeneous

A

different

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16
Q

Cathode

A

Negative, electrons, filament tugstone,

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17
Q

Andeode

A

positive, rotating part, rotor

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18
Q

Calometer

A

restricts the size of the folospot

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19
Q

We use lead because

A

it has a high atomic number and gets rid of ionizing radiation

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20
Q

We use Pyrex glass because

A

it can with stand heat (due to interactions with electrons)

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21
Q

Filter

A

aluminum, gets rid of low x-rays

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22
Q

Collometer

A

lead, ionizing restricts beams

23
Q

attenuation

24
Q

mA

A

how much (quantity)

25
RVP
pushing power (quality)
26
time
seconds
27
What does the contrast have to have to make it work?
High atomic number
28
Sonography uses what instead of x-rays?
soundwaves
29
MRI uses what instead of x-ray?
magnetic
30
The K Shell can only do what?
make diagnostic imaging
31
Nuclear radiation
injected with isotope
32
mass is the ____ of matter as described by its energy equivalence
quantity
33
___ is the ability to do work
energy
34
____ is the removal of an electron from an atom
Ionization
35
To provide an x-ray beam that is satisfactory for imaging, you must supply the x-ray tube with ___ voltage and an electric current
high
36
_____ emerged as a medical specialty because of the Snook transformer and the Coolidge x-ray tube
radiology
37
Because of effective radiation protection practices, radiology is now considered a ____ occupation
safe
38
An ____ is the smallest particle that has all the properties of an element.
atom
39
What are the fundamental particles of an atom?
electron, proton, neutron
40
the atom is essentially ___ space
empty
41
In their normal state, atoms are electrically neutral; the electric charge on the atom is ___
zero
42
Ionization is the removal or addition of an ____ electron from an atom
orbital
43
How many electrons can be an the outer shell?
Eight
44
The force that keeps an electron in orbit is the ____ force
centripetal
45
Atoms that have the same atomic number but different atomic mass numbers are ____
isotopes
46
Atomic nuclei that have the same atomic mass number but different atomic numbers are ___
isobars
47
Atoms that have the same number of neutrons but different numbers of protons are ___
isotones
48
What is the basic protection of radiation?
Filtration, Collimation, Intensifying screens, protective apparel, gonadal shielding, protective barriers.
49
What are the natural enviromental radiation?
cosmic rays, terrestrial radiation, internally deposited radionuclides, and radon
50
When were computed tomography introduced?
1973
51
When were digital fluroscopy introduced?
1977
52
When were automatic film processing introduced?
1942
53
When was American Society of Radiologic Technologies introduced?
1920