暗記メーカー

暗記メーカー

​
ログイン
RPC F1
36問 • 1年前
  • E
    • 通報

    問題一覧

  • 1

    Have several causes, most of which are related to the thermal characteristics of the x-ray tube

    X-Ray Tube Failure

  • 2

    must be dissipated for the x-ray tube to continue to function.

    Heat

  • 3

    Three Methods of Heat Dissipation

    Radiation - transfer of heat by emission of infrared radiation. Convection - transfer of heat by the movement of a heated substance from one place to another Conduction - transfer of heat from one area of an object to another.

  • 4

    results in reduced tube life (also the first reason for tube failure)

    Excessive heat

  • 5

    caused by excessive temperature of the anode

    Localized Surface Melting & Pitting

  • 6

    what may result to cracking of the anode.

    Too rapid increase in temperature of the anode

  • 7

    should not be applied to a cold cathode.

    Maximum radiographic technique

  • 8

    results from maintaining the anode at elevated temperatures for prolonged times.

    Second type of tube failure

  • 9

    what’s the final cause of tube failure?

    Tube Arcing

  • 10

    caused when vaporized tungsten coats the inside of the glass or metal enclosure is interacted with electrons.

    Tube Arcing

  • 11

    - causes disturbed electrical balance on the x-ray tube, - causing abrupt, intermittent changes in tube current

    Tube Arcing

  • 12

    guides the the radiologic technologists in using the x-ray tube

    Rating Chart

  • 13

    Three types of Rating charts

    - Radiographic Rating Chart - Anode Cooling Chart - Housing Cooling Chart

  • 14

    most important of the three types of rating charts

    Radiographic Rating Chart

  • 15

    shows scales of mA and kVp

    X and Y

  • 16

    - contains the thermal capacity of the anode and its heat dissipation characteristics. - has a limited capacity in storing heat.

    Anode Cooling Chart

  • 17

    - has a shape similar to that of the anode cooling chart and is used precisely the same way. - complete cooling after maximum heat capacity requires from 1 to 2 hours

    Housing Cooling Chart

  • 18

    - describes the energy deposition of a particular type of radiation, which largely determine the biological consequence of radiation

    Linear Energy Transfer

  • 19

    - proportional to the square of the charge of the particle. - inversely proportional to the particle's kinetic energy.

    Linear Energy Transfer

  • 20

    what is the unit of LET

    keV/um

  • 21

    High Linear Energy Transfer Radiation range

    3-200 keV/um

  • 22

    Low Linear Energy Transfer Radiation

    0.2-3 keV/um

  • 23

    High Linear Energy Transfer is mediated by what?

    alpha particles, proton, neutrons

  • 24

    - Greater density of interactions at cellular level - produce biological damage in a given volume of tissue

    High Linear Energy Transfer

  • 25

    Low Linear Energy Transfer is mediated by what?

    Electrons, Positrons, Gamma rays, X-rays

  • 26

    less likely to produce tissue damage in the same volume of tissue

    Low Linear Energy Transfer

  • 27

    conveys which radiographic techniques are safe and unsafe for x-ray tube operation

    Radiographic Rating Charts

  • 28

    average energy deposited per unit path length along the track of an ionizing particle

    Linear Energy Transfer

  • 29

    LET of Linac X-rays (6-15 MeV)

    0.3 keV/um

  • 30

    LET of Beta Particle (1 MeV)

    0.3 keV/um

  • 31

    LET of Cobalt-60 Y-rays

    0.2 keV/um

  • 32

    LET of 250 kVp x-rays (standard)

    2 keV/um

  • 33

    LET of 150 MeV protons

    0.5 keV/um

  • 34

    LET of Neutrons

    0.5-100 keV/um

  • 35

    LET of Alpha Particles

    50-200 keV/um

  • 36

    LET of Carbon ions

    40-90 keV/um

    • physiology of circulation academic weaponizer

    physiology of circulation academic weaponizer

    E · 24問 · 2年前

    physiology of circulation academic weaponizer

    physiology of circulation academic weaponizer

    24問 • 2年前
    E

    reproductive academic weaponizer

    reproductive academic weaponizer

    E · 55問 · 2年前

    reproductive academic weaponizer

    reproductive academic weaponizer

    55問 • 2年前
    E

    cells prelim acad weaponizer

    cells prelim acad weaponizer

    E · 24問 · 2年前

    cells prelim acad weaponizer

    cells prelim acad weaponizer

    24問 • 2年前
    E

    respiratory/body cavities prelim acad weaponizer

    respiratory/body cavities prelim acad weaponizer

    E · 20問 · 2年前

    respiratory/body cavities prelim acad weaponizer

    respiratory/body cavities prelim acad weaponizer

    20問 • 2年前
    E

    integumentary prelim acad weaponizer

    integumentary prelim acad weaponizer

    E · 29問 · 2年前

    integumentary prelim acad weaponizer

    integumentary prelim acad weaponizer

    29問 • 2年前
    E

    skeletal prelim acad weaponizer

    skeletal prelim acad weaponizer

    E · 33問 · 2年前

    skeletal prelim acad weaponizer

    skeletal prelim acad weaponizer

    33問 • 2年前
    E

    tissue prelim acad weaponizer

    tissue prelim acad weaponizer

    E · 42問 · 2年前

    tissue prelim acad weaponizer

    tissue prelim acad weaponizer

    42問 • 2年前
    E

    membrane prelim acad weaponizer

    membrane prelim acad weaponizer

    E · 20問 · 2年前

    membrane prelim acad weaponizer

    membrane prelim acad weaponizer

    20問 • 2年前
    E

    RPC L2

    RPC L2

    E · 28問 · 1年前

    RPC L2

    RPC L2

    28問 • 1年前
    E

    RPC L3

    RPC L3

    E · 40問 · 1年前

    RPC L3

    RPC L3

    40問 • 1年前
    E

    RPC L4

    RPC L4

    E · 32問 · 1年前

    RPC L4

    RPC L4

    32問 • 1年前
    E

    ALE

    ALE

    E · 48問 · 1年前

    ALE

    ALE

    48問 • 1年前
    E

    RPC L5

    RPC L5

    E · 64問 · 1年前

    RPC L5

    RPC L5

    64問 • 1年前
    E

    RPC M1

    RPC M1

    E · 38問 · 1年前

    RPC M1

    RPC M1

    38問 • 1年前
    E

    RPC M1/2

    RPC M1/2

    E · 45問 · 1年前

    RPC M1/2

    RPC M1/2

    45問 • 1年前
    E

    RPC M2

    RPC M2

    E · 64問 · 1年前

    RPC M2

    RPC M2

    64問 • 1年前
    E

    RPC M2.5

    RPC M2.5

    E · 45問 · 1年前

    RPC M2.5

    RPC M2.5

    45問 • 1年前
    E

    RPC M3

    RPC M3

    E · 51問 · 1年前

    RPC M3

    RPC M3

    51問 • 1年前
    E

    問題一覧

  • 1

    Have several causes, most of which are related to the thermal characteristics of the x-ray tube

    X-Ray Tube Failure

  • 2

    must be dissipated for the x-ray tube to continue to function.

    Heat

  • 3

    Three Methods of Heat Dissipation

    Radiation - transfer of heat by emission of infrared radiation. Convection - transfer of heat by the movement of a heated substance from one place to another Conduction - transfer of heat from one area of an object to another.

  • 4

    results in reduced tube life (also the first reason for tube failure)

    Excessive heat

  • 5

    caused by excessive temperature of the anode

    Localized Surface Melting & Pitting

  • 6

    what may result to cracking of the anode.

    Too rapid increase in temperature of the anode

  • 7

    should not be applied to a cold cathode.

    Maximum radiographic technique

  • 8

    results from maintaining the anode at elevated temperatures for prolonged times.

    Second type of tube failure

  • 9

    what’s the final cause of tube failure?

    Tube Arcing

  • 10

    caused when vaporized tungsten coats the inside of the glass or metal enclosure is interacted with electrons.

    Tube Arcing

  • 11

    - causes disturbed electrical balance on the x-ray tube, - causing abrupt, intermittent changes in tube current

    Tube Arcing

  • 12

    guides the the radiologic technologists in using the x-ray tube

    Rating Chart

  • 13

    Three types of Rating charts

    - Radiographic Rating Chart - Anode Cooling Chart - Housing Cooling Chart

  • 14

    most important of the three types of rating charts

    Radiographic Rating Chart

  • 15

    shows scales of mA and kVp

    X and Y

  • 16

    - contains the thermal capacity of the anode and its heat dissipation characteristics. - has a limited capacity in storing heat.

    Anode Cooling Chart

  • 17

    - has a shape similar to that of the anode cooling chart and is used precisely the same way. - complete cooling after maximum heat capacity requires from 1 to 2 hours

    Housing Cooling Chart

  • 18

    - describes the energy deposition of a particular type of radiation, which largely determine the biological consequence of radiation

    Linear Energy Transfer

  • 19

    - proportional to the square of the charge of the particle. - inversely proportional to the particle's kinetic energy.

    Linear Energy Transfer

  • 20

    what is the unit of LET

    keV/um

  • 21

    High Linear Energy Transfer Radiation range

    3-200 keV/um

  • 22

    Low Linear Energy Transfer Radiation

    0.2-3 keV/um

  • 23

    High Linear Energy Transfer is mediated by what?

    alpha particles, proton, neutrons

  • 24

    - Greater density of interactions at cellular level - produce biological damage in a given volume of tissue

    High Linear Energy Transfer

  • 25

    Low Linear Energy Transfer is mediated by what?

    Electrons, Positrons, Gamma rays, X-rays

  • 26

    less likely to produce tissue damage in the same volume of tissue

    Low Linear Energy Transfer

  • 27

    conveys which radiographic techniques are safe and unsafe for x-ray tube operation

    Radiographic Rating Charts

  • 28

    average energy deposited per unit path length along the track of an ionizing particle

    Linear Energy Transfer

  • 29

    LET of Linac X-rays (6-15 MeV)

    0.3 keV/um

  • 30

    LET of Beta Particle (1 MeV)

    0.3 keV/um

  • 31

    LET of Cobalt-60 Y-rays

    0.2 keV/um

  • 32

    LET of 250 kVp x-rays (standard)

    2 keV/um

  • 33

    LET of 150 MeV protons

    0.5 keV/um

  • 34

    LET of Neutrons

    0.5-100 keV/um

  • 35

    LET of Alpha Particles

    50-200 keV/um

  • 36

    LET of Carbon ions

    40-90 keV/um