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Intro ch 9
77問 • 3ヶ月前
  • 21harmorhe
    • 通報

    問題一覧

  • 1

    Occupational dose limit annual

    50mSv

  • 2

    Occupational cumulative dose limit

    10mSv x age

  • 3

    Occupational annual dose limit for lens of eyes

    150mSv

  • 4

    Occupational dose limit annual for skin hands and feet

    500mSv

  • 5

    Annual public continuous dose limit

    1mSv

  • 6

    Annual public infrequent exposure dose limit

    5mSv

  • 7

    Annual public dose limit for lens of eyes

    15mSv

  • 8

    Annual public dose limit for skin hands and feet

    50mSv

  • 9

    Monthly dose limit for fetus

    .5mSv

  • 10

    Education and training annual exposure

    1mSv

  • 11

    Education and training annual dose limit for lens of eyes

    15mSv

  • 12

    Education and trainng annual dose limit for skin hands and feet

    50mSv

  • 13

    Effective dose equation

    GyxWrxWt=Sv

  • 14

    Equivalent dose equation

    GyxWr=Sv

  • 15

    Cardinal rules of radiation protection

    Sheilding distance time

  • 16

    The unit for measurement of absorbed dose for all types of ionizing radiation is

    Gray

  • 17

    Somatic effects become evident in

    The exposed individual

  • 18

    National radiologic technology week celebrates Conrad Wilhelm Ronentgens discovery of X-rays on

    November 8th 1895

  • 19

    What unit of measure is used to express the absorbed dose material

    Gray

  • 20

    A 300 mSv exposure is equivalent to what in Sievert

    .3

  • 21

    To covert mSv or mGy to Sv or Gy

    Move the decimal three places to the left

  • 22

    A patient receives a dose of 5 Gy of fast moving neutrons with a radiation weighting factor of 10 the total equivalent dose is

    50 Sv

  • 23

    If the distance between the individual adn the source of radiation is doubled the exposure to the individual will be reduced by the factor of

    4

  • 24

    Thermoluminescent dosimeter (TLD) uses what crystal

    Lithium fluoride

  • 25

    What body tissue is most radiosensative

    Bone marrow

  • 26

    Lead aprons function to protect the user from

    Scatter radiation

  • 27

    The unit used to express the number of ionizations in a given volume of air is

    Coulomb/kilogram

  • 28

    The law of bergonie and tribondeau states that cells are more radiosensative if they are

    Highly mitotic and undifferentiated

  • 29

    Long term affect of exposure to radiation

    Carcinogenesis

  • 30

    An exposure of 3 Gy of slow neutrons Wr 5 to the thyroid Wt .03 results in how much effective dose

    450 mSv

  • 31

    Gamma rays and X-rays have a a radiation weighing factor of

    One

  • 32

    A 66 year old radiologists total occupational exposure should be less than

    660mSv

  • 33

    What is the inverse square law

    I1/I2=(D2)2/(D1)2

  • 34

    If you standing 2.5 feet away from a radiation source and receive 4 Gy how much exposure would you receive if you moved 1 foot away

    25 Gy

  • 35

    What is damaged by an indirect hit

    Water of cell

  • 36

    What is damaged by a direct hit

    DNA

  • 37

    When are fetal cells most radiosensative

    When they are dividing

  • 38

    Target theory is

    Cell survival if DNA is hit enough times the cell will die

  • 39

    What are the two types of cells in the body

    Somatic and genetic

  • 40

    Genetic or germ cells are

    Sperm/ova

  • 41

    Somatic cells are

    Body cells

  • 42

    The response must reach a certain amount of dose before we see it

    Threshold

  • 43

    Threshold is also called

    Deterministic

  • 44

    Optically stimulated luminescence dosimeter (OSL)

    Aluminum oxide strip

  • 45

    Thermoluminescent dosimeter (TLD)

    Lithium fluoride crystals

  • 46

    Direct Ion storage (DIS)

    Ionization chamber

  • 47

    Most important for patient

    Time

  • 48

    Most important for Radiographer

    Distance

  • 49

    ALARA

    As low as reasonably achievable

  • 50

    In X-ray or gamma rays 1 Gray = how many sieverts

    One

  • 51

    Measurement that accounts for biological response to different types of radiation

    Equivalent dose

  • 52

    Measures the activity of radioactive material

    Radioactivity

  • 53

    Measures the amount of energy absorbed in any medium

    Absorbed dose

  • 54

    Kinetic energy released per unit mass

    Air kerma

  • 55

    A measure of ionization in air

    Exposure

  • 56

    The total risk to the body from radiation

    Effective dose

  • 57

    What is needed for X-rays to be produced

    Electrons rapid particle acceleration instantaneous declaration

  • 58

    For pair production the energy of the X-ray photo needs to be

    1.02MeV

  • 59

    X-ray beam energy is measured in

    Kiloelectron volts keV

  • 60

    Positive terminal

    Anode

  • 61

    Negative terminal

    Cathode

  • 62

    Gray and siverts relationship

    1Gy=1Sv

  • 63

    Manifest stage is

    All symptoms come back

  • 64

    Latent stage is

    Feeling better

  • 65

    Prodramal stage is

    Nausea vomiting diarrhea

  • 66

    Four stages of ARS

    Prodramal stage latent stage manifest stage recovery or death

  • 67

    What is ARS

    Acute radiation syndrome

  • 68

    Central nervous syndorme

    50+Gyt

  • 69

    Gastrointestinal Syndrome

    10-50Gyt

  • 70

    Bone marrow

    2-10Gyt

  • 71

    Target molecule

    DNA

  • 72

    What is non threshold (stogasic)

    The response can occur at any dose

  • 73

    Non threshold is also called

    Stogastic

  • 74

    US FDA does what

    Regulates standards for equipment

  • 75

    NCRP does

    Dose recommendations

  • 76

    NCRP is

    National council of radiation protection and measurements

  • 77

    NRC organization

    Enforces recommendations

    • unit 2

    unit 2

    21harmorhe · 24問 · 4ヶ月前

    unit 2

    unit 2

    24問 • 4ヶ月前
    21harmorhe

    Abdominal Cavity’s

    Abdominal Cavity’s

    21harmorhe · 29問 · 4ヶ月前

    Abdominal Cavity’s

    Abdominal Cavity’s

    29問 • 4ヶ月前
    21harmorhe

    Quadrants and organs within them

    Quadrants and organs within them

    21harmorhe · 21問 · 4ヶ月前

    Quadrants and organs within them

    Quadrants and organs within them

    21問 • 4ヶ月前
    21harmorhe

    CONTRAST

    CONTRAST

    21harmorhe · 27問 · 3ヶ月前

    CONTRAST

    CONTRAST

    27問 • 3ヶ月前
    21harmorhe

    Abdominal regions

    Abdominal regions

    21harmorhe · 22問 · 3ヶ月前

    Abdominal regions

    Abdominal regions

    22問 • 3ヶ月前
    21harmorhe

    Abdominal regions 2

    Abdominal regions 2

    21harmorhe · 9問 · 3ヶ月前

    Abdominal regions 2

    Abdominal regions 2

    9問 • 3ヶ月前
    21harmorhe

    Upper extremity

    Upper extremity

    21harmorhe · 54問 · 3ヶ月前

    Upper extremity

    Upper extremity

    54問 • 3ヶ月前
    21harmorhe

    Intro unit 2

    Intro unit 2

    21harmorhe · 44問 · 3ヶ月前

    Intro unit 2

    Intro unit 2

    44問 • 3ヶ月前
    21harmorhe

    Hand and wrist pathology

    Hand and wrist pathology

    21harmorhe · 13問 · 3ヶ月前

    Hand and wrist pathology

    Hand and wrist pathology

    13問 • 3ヶ月前
    21harmorhe

    Procedures joints

    Procedures joints

    21harmorhe · 22問 · 3ヶ月前

    Procedures joints

    Procedures joints

    22問 • 3ヶ月前
    21harmorhe

    Joints and their structure

    Joints and their structure

    21harmorhe · 14問 · 3ヶ月前

    Joints and their structure

    Joints and their structure

    14問 • 3ヶ月前
    21harmorhe

    long bone

    long bone

    21harmorhe · 21問 · 3ヶ月前

    long bone

    long bone

    21問 • 3ヶ月前
    21harmorhe

    Upper extremity positioning

    Upper extremity positioning

    21harmorhe · 18問 · 3ヶ月前

    Upper extremity positioning

    Upper extremity positioning

    18問 • 3ヶ月前
    21harmorhe

    Imaging midterm

    Imaging midterm

    21harmorhe · 66問 · 3ヶ月前

    Imaging midterm

    Imaging midterm

    66問 • 3ヶ月前
    21harmorhe

    Imaging equations

    Imaging equations

    21harmorhe · 16問 · 3ヶ月前

    Imaging equations

    Imaging equations

    16問 • 3ヶ月前
    21harmorhe

    Dose limits

    Dose limits

    21harmorhe · 12問 · 3ヶ月前

    Dose limits

    Dose limits

    12問 • 3ヶ月前
    21harmorhe

    Intro ch9

    Intro ch9

    21harmorhe · 8問 · 3ヶ月前

    Intro ch9

    Intro ch9

    8問 • 3ヶ月前
    21harmorhe

    Intro 9 Regulatory agency

    Intro 9 Regulatory agency

    21harmorhe · 6問 · 3ヶ月前

    Intro 9 Regulatory agency

    Intro 9 Regulatory agency

    6問 • 3ヶ月前
    21harmorhe

    Intro 9

    Intro 9

    21harmorhe · 19問 · 3ヶ月前

    Intro 9

    Intro 9

    19問 • 3ヶ月前
    21harmorhe

    問題一覧

  • 1

    Occupational dose limit annual

    50mSv

  • 2

    Occupational cumulative dose limit

    10mSv x age

  • 3

    Occupational annual dose limit for lens of eyes

    150mSv

  • 4

    Occupational dose limit annual for skin hands and feet

    500mSv

  • 5

    Annual public continuous dose limit

    1mSv

  • 6

    Annual public infrequent exposure dose limit

    5mSv

  • 7

    Annual public dose limit for lens of eyes

    15mSv

  • 8

    Annual public dose limit for skin hands and feet

    50mSv

  • 9

    Monthly dose limit for fetus

    .5mSv

  • 10

    Education and training annual exposure

    1mSv

  • 11

    Education and training annual dose limit for lens of eyes

    15mSv

  • 12

    Education and trainng annual dose limit for skin hands and feet

    50mSv

  • 13

    Effective dose equation

    GyxWrxWt=Sv

  • 14

    Equivalent dose equation

    GyxWr=Sv

  • 15

    Cardinal rules of radiation protection

    Sheilding distance time

  • 16

    The unit for measurement of absorbed dose for all types of ionizing radiation is

    Gray

  • 17

    Somatic effects become evident in

    The exposed individual

  • 18

    National radiologic technology week celebrates Conrad Wilhelm Ronentgens discovery of X-rays on

    November 8th 1895

  • 19

    What unit of measure is used to express the absorbed dose material

    Gray

  • 20

    A 300 mSv exposure is equivalent to what in Sievert

    .3

  • 21

    To covert mSv or mGy to Sv or Gy

    Move the decimal three places to the left

  • 22

    A patient receives a dose of 5 Gy of fast moving neutrons with a radiation weighting factor of 10 the total equivalent dose is

    50 Sv

  • 23

    If the distance between the individual adn the source of radiation is doubled the exposure to the individual will be reduced by the factor of

    4

  • 24

    Thermoluminescent dosimeter (TLD) uses what crystal

    Lithium fluoride

  • 25

    What body tissue is most radiosensative

    Bone marrow

  • 26

    Lead aprons function to protect the user from

    Scatter radiation

  • 27

    The unit used to express the number of ionizations in a given volume of air is

    Coulomb/kilogram

  • 28

    The law of bergonie and tribondeau states that cells are more radiosensative if they are

    Highly mitotic and undifferentiated

  • 29

    Long term affect of exposure to radiation

    Carcinogenesis

  • 30

    An exposure of 3 Gy of slow neutrons Wr 5 to the thyroid Wt .03 results in how much effective dose

    450 mSv

  • 31

    Gamma rays and X-rays have a a radiation weighing factor of

    One

  • 32

    A 66 year old radiologists total occupational exposure should be less than

    660mSv

  • 33

    What is the inverse square law

    I1/I2=(D2)2/(D1)2

  • 34

    If you standing 2.5 feet away from a radiation source and receive 4 Gy how much exposure would you receive if you moved 1 foot away

    25 Gy

  • 35

    What is damaged by an indirect hit

    Water of cell

  • 36

    What is damaged by a direct hit

    DNA

  • 37

    When are fetal cells most radiosensative

    When they are dividing

  • 38

    Target theory is

    Cell survival if DNA is hit enough times the cell will die

  • 39

    What are the two types of cells in the body

    Somatic and genetic

  • 40

    Genetic or germ cells are

    Sperm/ova

  • 41

    Somatic cells are

    Body cells

  • 42

    The response must reach a certain amount of dose before we see it

    Threshold

  • 43

    Threshold is also called

    Deterministic

  • 44

    Optically stimulated luminescence dosimeter (OSL)

    Aluminum oxide strip

  • 45

    Thermoluminescent dosimeter (TLD)

    Lithium fluoride crystals

  • 46

    Direct Ion storage (DIS)

    Ionization chamber

  • 47

    Most important for patient

    Time

  • 48

    Most important for Radiographer

    Distance

  • 49

    ALARA

    As low as reasonably achievable

  • 50

    In X-ray or gamma rays 1 Gray = how many sieverts

    One

  • 51

    Measurement that accounts for biological response to different types of radiation

    Equivalent dose

  • 52

    Measures the activity of radioactive material

    Radioactivity

  • 53

    Measures the amount of energy absorbed in any medium

    Absorbed dose

  • 54

    Kinetic energy released per unit mass

    Air kerma

  • 55

    A measure of ionization in air

    Exposure

  • 56

    The total risk to the body from radiation

    Effective dose

  • 57

    What is needed for X-rays to be produced

    Electrons rapid particle acceleration instantaneous declaration

  • 58

    For pair production the energy of the X-ray photo needs to be

    1.02MeV

  • 59

    X-ray beam energy is measured in

    Kiloelectron volts keV

  • 60

    Positive terminal

    Anode

  • 61

    Negative terminal

    Cathode

  • 62

    Gray and siverts relationship

    1Gy=1Sv

  • 63

    Manifest stage is

    All symptoms come back

  • 64

    Latent stage is

    Feeling better

  • 65

    Prodramal stage is

    Nausea vomiting diarrhea

  • 66

    Four stages of ARS

    Prodramal stage latent stage manifest stage recovery or death

  • 67

    What is ARS

    Acute radiation syndrome

  • 68

    Central nervous syndorme

    50+Gyt

  • 69

    Gastrointestinal Syndrome

    10-50Gyt

  • 70

    Bone marrow

    2-10Gyt

  • 71

    Target molecule

    DNA

  • 72

    What is non threshold (stogasic)

    The response can occur at any dose

  • 73

    Non threshold is also called

    Stogastic

  • 74

    US FDA does what

    Regulates standards for equipment

  • 75

    NCRP does

    Dose recommendations

  • 76

    NCRP is

    National council of radiation protection and measurements

  • 77

    NRC organization

    Enforces recommendations