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Exam (elaborations)

MRSO: Educational Modules Questions & 100% Correct Answers

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  • MRSO

Static Magnetic Field ~~> -poses risks to our patient that involve materials with specific properties Magnetic Properties ~~> -when place in a strong magnetic field, molecules demonstrate behaviors that depends on their quantum state and temperature Diagmagnetism ~~> -demonstra...

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  • September 12, 2024
  • 33
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MRSO
  • MRSO
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MASTER01
1 | P a g e | © copyright 2024/2025 | Grade A+




MRSO: Educational Modules Questions &
100% Correct Answers
Static Magnetic Field

✓ ~~> -poses risks to our patient that involve materials with specific

properties




Magnetic Properties

✓ ~~> -when place in a strong magnetic field, molecules demonstrate

behaviors that depends on their quantum state and temperature




Diagmagnetism

✓ ~~> -demonstrates a weak repulsive force in the presence of a strong

static magnetic field




Paramagnetism

✓ ~~> -demonstrates a weak attractive force in the presence of a

strong static magnetic field




Ferromagnetism




Master01 | September, 2024/2025 | Latest update

, 2 | P a g e | © copyright 2024/2025 | Grade A+



✓ ~~> -demonstrates a strong attractive force in the presences of a

static magnetic field

-this attractive force is retained in the ferromagnetic object after a period of

time even after leaving the static field




Basic Units of Measurement

✓ ~~> -static magnetic field

-magnetic flux

-millitesla (mT)

-Gauss (G)

-Tesla (T)




Static Magnetic Field

✓ ~~> -this refers to the direction and strength of a static magnetic field

-represents as B0 (B zero)




Magnetic Flux

✓ ~~> -the magnetic force that encompasses a magnetic source




Millitesla




Master01 | September, 2024/2025 | Latest update

, 3 | P a g e | © copyright 2024/2025 | Grade A+



✓ ~~> -mT




Gauss (G)

✓ ~~> -1 mT

-5 G = 0.5 mT




Tesla (T)

✓ ~~> -10,000 Gauss = 1 T




Lines of Flux

✓ ~~> -invisible lines

-fringe field

-vector directions

-short bore vs long bore




Invisible Lines

✓ ~~> -force that travels from the north pole of a magnet to the south

pole




Fringe Field




Master01 | September, 2024/2025 | Latest update

, 4 | P a g e | © copyright 2024/2025 | Grade A+



✓ ~~> -field that extends outside the MR unit

-varies strength the closer you get to the MR unit




Vector Directions

✓ ~~> -vertical or horizontal




Short Bore vs Long Bore

✓ ~~> -short bore have steep spatial gradients




Magnetic Spatial Gradient

✓ ~~> -fringe field extending outside MR unit

-used to describe the change in strength of the magnetic field as we get

closer to the MR unit

-like an onion has layers, so does a magnetic field

-measured in dB/dx

-in other words, T/m or G/cm

-1 T/m = 100 G/cm




Isogauss Plot




Master01 | September, 2024/2025 | Latest update

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