Rad Physics Test 1

Front 1

What number is 15% more than 80?

Back 1

92

Front 2

What number is 15% less than 80?

Back 2

68

Front 3

What is the boiling and freezing points of water on both scales?

Back 3

32F 212F 0C 100C

Front 4

How many cm is 40 in?

Back 4

40x2.54= 108.6 cm

Front 5

An original technique at 40in SID used 10 mAs. What new mAs will be needed if the SID is doubled?

Back 5

40 mAs

Front 6

An original technique at 40 in SID gave an exposure of 15 mr/hr. What would be the exposure if the SID is doubled?

Back 6

3.75 mr/hr

Front 7

What is Einstein's theory and equation? What do the initials mean?

Back 7

E-=mc^2
enery= mass times the speed of light squared

Front 8

What are the three fundamental units?

Back 8

mass, length, time

Front 9

what are derived units and what are four examples?

Back 9

combination of 2 fundamental units.
volume, area, density, velocity, temperature

Front 10

energy

Back 10

actual or potential energy to do work

Front 11

electromagnetic radiation

Back 11

electric and magnetic disturbances

Front 12

thermal energy

Back 12

motion of molecules

Front 13

speed of light

Back 13

186,000 miles per second
3x10^8 cm/sec
3x10^10 mm/sec

Front 14

work

Back 14

work=Fd
measure in Joules

Front 15

kinetic energy

Back 15

KE
energy of motion

Front 16

Potential energy

Back 16

PE
energy of position

Front 17

kilo

Back 17

10^3
1000

Front 18

hecto

Back 18

10^2

Front 19

nano

Back 19

10^-9

Front 20

milli

Back 20

10^-3
.001

Front 21

deka

Back 21

10^1
da

Front 22

mm

Back 22

millimeters

Front 23

mega

Back 23

10^6

Front 24

micro

Back 24

10^-6

Front 25

centi

Back 25

10^-2

Front 26

Power

Back 26

P=IV (amps x volts)
P=work/t
measure in Watts

Front 27

physics

Back 27

study of relationship between matter and energy

Front 28

radiologic physics

Back 28

origins, nature and behavior of x-rays and related types of radiation

Front 29

Ten Day Rule

Back 29

day 1-10 of menstrual cycle is safest for x-rays

Front 30

matter

Back 30

anything that occupies space and has form/shape

Front 31

ionization

Back 31

removal or addition of electron

Front 32

neutral atom

Back 32

protons equal to electrons

Front 33

ion

Back 33

protons not equal to electrons

Front 34

unstable atom

Back 34

p and n not getting along

Front 35

joule

Back 35

J (unit of work or energy)

Front 36

erg

Back 36

unit of work or energy

Front 37

resistance/ohm (R)

Back 37

hinderance to flow of electrons

Front 38

ampere (I)

Back 38

current

Front 39

voltage (V)

Back 39

pushes electrons

Front 40

watt/ horsepower

Back 40

unit of power

Front 41

direct proportion

Back 41

as a increases b increases or as a decreases b decreases

Front 42

inverse proportion

Back 42

as a increases b decreases

Front 43

speed (velocity)

Back 43

motion of an object
V=d/t
measure in m/s

Front 44

acceleration

Back 44

rate of change of velocity

Front 45

specific gravity

Back 45

no units
compared to density of water

Front 46

temperature

Back 46

measures molecules in motion

Front 47

cryogens

Back 47

liquid coolants (very cold) used to keep MRI magnet cool
Nitrogen and Helium

Front 48

Gravity

Back 48

9.8 m/s

Front 49

momentum

Back 49

p=mv
measured in kg-m/s

Front 50

inertia

Back 50

ability of an object to resist change

Front 51

what type of proportion?
amount of exposure and time

Back 51

direct

Front 52

what type of proportion?
lead and patient/operator radiation dose

Back 52

inverse

Front 53

what type of proportion?
SID and exposure

Back 53

inverse

Front 54

what type of proportion?
mAs and film density

Back 54

direct

Front 55

what type of proportion?
kV and wavelength

Back 55

inverse

Front 56

what type of proportion?
SID and film density

Back 56

inverse

Front 57

what type of proportion?
mA and time

Back 57

inverse

Front 58

What does SID stand for?

Back 58

source- image receptor distance

Front 59

What does OID stand for?

Back 59

object-image receptor distance

Front 60

What does SOD stand for?

Back 60

source-object distance

Front 61

What type of cooling mechanism does the x-ray tube use?

Back 61

thermal radiation

Front 62

What are three types of cooling mechanisms?

Back 62

radiation, convection, conduction

Front 63

What are Newton's Three Laws in order?

Back 63

1. Law of Inertia
2. Law of force (F=ma)
3. Law of Action/ Reaction

Front 64

1895

Back 64

x-rays are discovered

Front 65

1901

Back 65

Roentgen wins Nobel Prize in physics

Front 66

1907

Back 66

Snook transformer is introduced

Front 67

1913

Back 67

Bohr's atom
Coolidge hot-filament tube is developed

Front 68

1920

Back 68

ASRT founded

Front 69

1896

Back 69

Edison develops fluoroscope
first medical applications of x-rays in diagnosis and therapy are made

Front 70

1921

Back 70

Potter-Bucky grid introduced

Front 71

1929

Back 71

rotating anode introduced
Forssmann demonstrates cardiac cath on himself

Front 72

1942

Back 72

First automatic (Pako) film processor
phototimer introduced

Front 73

1956

Back 73

Automatic roller transport film processor introduced (Eastman Kodak)
xeromammography

Front 74

1965

Back 74

90 second film processor is introduced (Eastmon Kodak)

Front 75

1972

Back 75

rare earth intensifying screens are introduced

Front 76

1973

Back 76

first CT (Hounsfield) development completed
MRI first demonstrated in experiments (Damadian and Lauterbur)

Front 77

Roentgen

Back 77

discovered x-rays

Front 78

Edison

Back 78

early experimenter with calcium tungstate
fluoroscope

Front 79

Dally

Back 79

first radiation fatality in U.S.
Edison's assistant

Front 80

Pupin

Back 80

intensifying screen contributor
developed first CaWO4 intensifying screen

Front 81

Crookes

Back 81

developed first gas tube with cathode rays

Front 82

Coolidge

Back 82

developed hot-filament x-ray tube (1910)

Front 83

Snook

Back 83

developed the transformer (1907)

Front 84

Hounsfield

Back 84

developed first CT scanner (1993)

Front 85

developed first reciprocating grid

Back 85

Potter

Front 86

developed hot-filament x-ray tube

Back 86

Coolidge

Front 87

Measured different potential in metals

Back 87

Galvanti

Front 88

demonstrates digital fluroscopy

Back 88

Mistretta

Front 89

formed the periodic table

Back 89

Mendeleev

Front 90

developed first CT scanner

Back 90

Hounsfield

Front 91

experiemented with atoms and mass

Back 91

Rutherford

Front 92

experimented with dosages of radiation

Back 92

Joule

Front 93

stated work=force x distance

Back 93

Joule's law

Front 94

measured various electromagnetic radiations

Back 94

Faraday

Front 95

mother of radioactivity

Back 95

Curie

Front 96

invented first battery

Back 96

Volta

Front 97

developed first gas tube with cathode rays

Back 97

Crookes

Front 98

conducted experiments with wavelength

Back 98

Maxwell

Front 99

conducted experiements with barium platinocyanide

Back 99

Rankin

Front 100

developed first grid

Back 100

Bucky

Front 101

developed first intensifying screen

Back 101

Stokes

Front 102

stated energy is mass x speed of light squared in a vacuum

Back 102

Einstein

Front 103

conducted experiments with mass, space, and atom

Back 103

Bohr

Front 104

early experimenter with calcium tungstate

Back 104

Edison

Front 105

experimented with uranium and radioactive material

Back 105

Becquerel

Front 106

showed relationship between volts, amperes, and resistance

Back 106

Ohm

Front 107

Developed first calcium tungstate screen

Back 107

Pupin

Front 108

first patient to be radiographed

Back 108

Roentgen

Front 109

developed first electronic phototiming device

Back 109

Morgan