ARMRIT/ARRT review > Basic physics > Flashcards

Basic physics Flashcards

(8 cards)

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1
Q

3 components of magnetic resonance

A
  • hydrogen proton
  • large static homogenous B0 field
  • RF signal
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2
Q

reason we use hydrogen

A
  • most abundant
  • strongest magnetic moment
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3
Q

Main magnetic field

A

B0
- measured in Tesla

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4
Q

3 criteria for B0

A
  • stable
  • homogeneous
  • large
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5
Q

radio frequency

A

B1

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6
Q

RF or RF signal

A

transmitted to and received from protons

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7
Q

Criteria for RF signal

A
  • Larmor frequency- introduced at the same frequency as hydrogen proton precession
    _ RF pulse must be introduced at perpendicular to magnetic field
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8
Q
A
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