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RAD PHYSICS > PHYSICS1 > Flashcards

PHYSICS1 Flashcards

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1
Q

METHODS OF ELECTRIFICATION

A
  1. FRICTION
  2. CONTACT
  3. INDUCTION
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2
Q

OTHER NAME OF AMBER

A

ELECTRON

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3
Q

ELECTRON WAS DISCOVERED BY

A

JJ THOMPSON

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4
Q

ELECTRIC CURRENT IS ALSO REFERRED TO AS

A

ELECTRICITY

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5
Q

PROCESS OF FLOWING OF ELECTRONS

A

ELECTRIFICATION

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6
Q

STUDY OF ELECTRICITY IN MOTION

A

ELECTRODYNAMICS

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7
Q

MEASURES ELECTRIC CURRENT

A

AMMETER

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8
Q

MEASURES VOLTAGE

A

VOLTMETER

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9
Q

AMPLIFIES AND SWITCH SIGNALS TO DEVICES

A

TRANSISTORS

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10
Q

VARIABLE RESISTOR

A

RHEOSTAT

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11
Q

IT MOMENTARILY STORES ELECTRIC CHARGE

A

CAPACITOR

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12
Q

IT STORES RESISTANCE

A

RESISTOR

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13
Q

SERVES AS SUPPORT FOR THE X-RAY TUBE AND PROTECTS IT FROM ROUGH HANDLING

A

TUBE HOUSING

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14
Q

WHERE THE X-RAY BEAM EXITS

A

TUBE PORT

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15
Q

WHO DISCOVERED : X-RAY

A

WILLIAM ROENTGEN

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16
Q

WHO DISCOVERED : FLUOROSCOPY

A

THOMAS EDISON

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17
Q

WHO DISCOVERED : OHM’S LAW

A

GEORGE SIMON OHM

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18
Q

WHO DISCOVERED : DYNAMO

A

MICHAEL FARADAY

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19
Q

GROUP OF NUCLIDES W/ SAME ATOMIC MASS NUMBER, BUT DIFFERENT ATOMIC NUMBER AND NEUTRON NUMBER

A

ISOBAR

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20
Q

SAME NUMBER OF PROTONS/ ATOMIC NUMBER

A

ISOTOPES

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21
Q

SAME NUMBER OF NEUTRON

A

ISOTONES

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22
Q

SAME ALL DIFFERENT ENERGIES

A

ISOMER

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23
Q

DPS FOR 1 Ci

A

3.7*10^10 DPS

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24
Q

DPS FOR 1 Bq

A

2.7*10^-11 Ci

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25
Q

HOOK AND EYE MODEL

A

JOHN DALTON

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26
Q

MINIATURE SOLAR SYSTEM ATOMIC MODEL

A

NIELS BOHR

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27
Q

PLUM PUDDING MODEL

A

JJ THOMPSON

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28
Q

NUCLEAR MODEL

A

ERNEST RUTHERFORD

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29
Q

4TH HALF-LIFE

A

6.25 %

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30
Q

FRACTION OF ACTIVITY OF 3RD HALF-LIFE

A

1/8

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31
Q

HALF-LIFE REPRESENTS THE TIME NEEDED BY RAM TO REDUCE ITS QUANTITY TO 1/2 INSIDE THE LIVING BODY

A

BIOLOGICAL HALF-LIFE

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32
Q

HALF-LIFE REPRESENTS THE TIME NEEDED BY RAM TO REDUCE ITS QUANTITY TO 1/2 ITS ORIGINAL VALUE

A

HALF-LIFE

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33
Q

FRACTION OF ORIGINAL NUMBER ATOM THAT DISINTEGRATES PER UNIT TIME

A

DECAY CONSTANT

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34
Q

TIME RATE OF DECAY

A

ACTIVITY

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35
Q

RADIOACTIVE HALF-LIFE OF I-131 IS EQUIVALENT TO

A

8 DAYS

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36
Q

HALF-LIFE OF TCM-99

A

6 HRS

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37
Q

HALF-LIFE OF Au-192

A

2.4 days

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38
Q

HALF-LIFE OF Co

A

5.26 YRS

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39
Q

KIND OF FORCE THAT HOLDS THE NUCLEONS TOGETHER IN A NUCLEUS

A

STRONG NUCLEAR FORCE

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40
Q

MODE OF DECAY THAT IS EQUIVALENT TO HELIUM NUCLEUS

A

ALPHA DECAY

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41
Q

HOW MANY ERG/GRAM IN 1 RAD

A

100 ERGS/GRAM

42
Q

UNIT OF DOSE EQUIVALENT (NEW)

A

SIEVERT

43
Q

UNIT OF ABSORBED DOSE (OLD)

A

RAD

44
Q

UNIT OF ABSORBED DOSE (NEW)

A

GRAY

45
Q

UNIT OF DOSE EQUIVALENT (OLD)

A

REM

46
Q

UNIT OF ENERGY (OLD)

A

ERGS

47
Q

RATE OF ENERGY TRANSFER

A

LET

48
Q

AMOUNT OF RADIATION ENERGY TRANSFERRED PER UNIT MASS OF THE INTERACTING MEDIUM

A

ABSORBED DOSE

49
Q

IONIZATION OF AIR

A

EXPOSURE

50
Q

PRODUCT OF QUALITY FACTOR AND DOSE

A

DOSE EQUIVALENT

51
Q

LEAKAGE RADIATION SHOULD NOT EXCEED ____ PER HOUR AT 1 METER

A

100 mR

52
Q

DIFFERENCE B/N GAMMA RAYS AND X-RAYS

A

ORIGIN

53
Q

ENERGY ACQUIRED BY AN ELECTRON ACCELERATED THRU A POTENTIAL DIFFERENCE OF 1 VOLT

A

ELECTRON VOLT

54
Q

PARTICULATE TYPE OF RADIATION

A
  1. ALPHA
  2. POSITRON
  3. NEGATRON
55
Q

STRENGTH OF ATTACHMENT

A

ELECTRON BINDING ENERGY

56
Q

ENERGY POSSESED

A

ELECTRON BINDING ENERGY

57
Q

ENERGY REQUIRED TO REMOVE ELECTRONS FROM ITS SHELL

A

ELECTRON BINDING ENERGY

58
Q

NUCLEAR ELECTROMAGNETIC RADIATION

A

GAMMA RAY

X-RAY

59
Q

PRESENT MODEL OF AN ATOM

A

NIELS BOHR

60
Q

RATE OF RISING AND FALL OF A CREST OR VALLEY

A

FREQUENCY

61
Q

ELECTROMAGNETIC RADIATION THAT TRAVELS A LITTLE FASTER THAN THE SPEED OF LIGHT

A

CHERENKOV

62
Q

DISTANCE B/N ONE CREST TO ANOTHER OR FROM ONE VALLEY TO ANOTHER

A

WAVELENGTH

63
Q

TIME IT TAKE TO COMPLETE ONE CYCLE

A

PERIOD

64
Q

REFERRED TO AS ONE-HALF THE RANGE FROM CREST TO VALLEY

A

AMPLITUDE

65
Q

RISE AND FALL

A

OSCILLATION

66
Q

SPEED IS ____

A

VELOCITY

67
Q

IONIZATION OF X-RAY AND GAMMA-RAY IN AIR

A

EXPOSURE

68
Q

IONIZATION OF X-RAY AND GAMMA-RAY IN AIR

A

EXPOSURE

69
Q

ATTENUATION IS THE PRODUCT OF SCATTERING AND __

A

ABSORPTION

70
Q

THE TRANSITION OF THE OUTER ORBITAL ELECTRON TO AN INNER ORBITAL ELECTRON PRODUCES

A

CHARACTERISTIC X-RAY

71
Q

LET IS MEASURED IN ___

A

keV/um

72
Q

IT IS REFERRED TO AS THE NUMBER OF ION PAIRS PER UNIT PATH LENGTH

A

SPECIFIC IONIZATION

73
Q

THE ENERGY POSSESSED BY THE ENERGY IN MOTION, W/C IS ALSO POSSESSED BY PARTICULATE RADIATION

A

KINETIC ENERGY

74
Q

MINIMUM ENERGY REQUIRED TO PRODUCE AN ION PAIR IN GAS

A

34 eV

75
Q

MATERIAL CHOICE OF CONSTRUCTION FOR LONG-LASTING FILAMENT

A

W (TUNGSTEN)

76
Q

PRIMARY PURPOSE OF THE TARGET DISK IN THE X-RAY TUBE

A

PROVIDE SITE OF ENERGY CONVERSION

77
Q

BETA PARTICLE HAS A ___

A

-1 CHARGE

78
Q

____ % OF THORIUM IS ADDED TO THE TUNGSTEN

A

1-2

79
Q

PRIMARY PURPOSE OF ROTATING ANODE

A

INCREASE THE HEAT LOADING CAPACITY OF THE TUBE

80
Q

PRIMARY PURPOSE OF FOCUSING BEAM

A

MAINTAIN A FINELY FOCUS STREAM OF ELECTRONS

81
Q

X-RAY TARGET CONVERTS ELECTRICAL ENERGY TO ___ ENERGY

A

ELECTROMAGNETIC

82
Q

AT LEAST HOW MUCH ENERGY IS REQUIRED TO IONIZE TUNGSTEN ATOM

A

69.5 keV

83
Q

THIS ALLOWS ELECTRON FLOW IN ONE DIRECTION

A

DIODE

84
Q

TYPE OF TIMER USED FOR EXPOSURE SHORTER THAN 1/20 S

A

SYNCHRONOUS TIMER

85
Q

THESE ARE EXTREMELY POWERFUL ELECTROMAGNET

A

ALNICO

86
Q

MOST ADVANCED TYPE OF TRANSFORMER

A

SHELL TYPE TRANSFORMER

87
Q

TUBE WINDOW PROVIDES INHERENT FILTRATION THAT IS EQUIVALENT TO HOW MANY mm

A

0.5

88
Q

IT FILLS UP THE SPACE B/N THE METAL HOUSING AND THE TUBE INSERT

A

MINERAL OIL

89
Q

SERVES AS AN ELECTRICAL INSULATOR

A

MINERAL OIL

90
Q

THE EMISSION OF ELECTRONS HAPPENED IN THE FILAMENT, WHAT DO U CALL THAT PROCESS

A

THERMIONIC EMISSION

91
Q

DEFINES AS THE CORE WHERE THE SUPPLY IS CONNECTED

A

PRIMARY COIL

92
Q

FOCAL SPOT SIZE USED FOR BONY PARTS OF THE BODY

A

0.5 mm

93
Q

FOCAL SPOT SIZE USED FOR MAGNIFICATION OR JOINTS

A

0.3 mm

94
Q

FOCAL SPOT SIZE USED FOR GENERAL X-RAY

A

1.0 mm

95
Q

IT INDICATES MAXIMUM kVp AND mA THAT CAN BE USED FOR A GIVEN OF TIME FOR SINGLE EXPOSURE

A

INSTANTANEOUS LOADING CHART

96
Q

IT PROVIDES NECESSARY ENERGY HIGH VOLTAGE NEEDED BY THE X-RAY TUBE IN ACCELERATING ELECTRON EMITTED BY THE FILAMENT

A

HIGH VOLTAGE TRANSFORMER

97
Q

E = mc^2. What is c?

A

SPEED OF LIGHT

98
Q

X =

A

CHEMICAL ELEMENT

99
Q

A =

A

ATOMIC MASS NUMBER

100
Q

Z = ?

A

ATOMIC CHARGE NUMBER

101
Q

NEGATIVE ELECTRIC CHARGE IN JJ THOMSON ATOMIC MODEL

A

PLUM

102
Q

3 FUNDAMENTAL PARTICLES FOUND IN AN ATOM

A
  1. PROTON
  2. NEUTRON
  3. ELECTRON

RAD PHYSICS (1 decks)

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