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Questions and Answers
Which term refers to the speed at which the magnetic moments precess around the external magnetic field?
Which term refers to the speed at which the magnetic moments precess around the external magnetic field?
- Resonance
- Larmor frequency (correct)
- Phase
- Precession
What determines the precessional frequency of hydrogen at 1 Tesla?
What determines the precessional frequency of hydrogen at 1 Tesla?
- Resonance frequency
- Precession frequency
- Larmor equation
- Gyromagnetic ratio (correct)
What happens when the precessional frequencies of magnetic moments match an applied radiofrequency field?
What happens when the precessional frequencies of magnetic moments match an applied radiofrequency field?
- Phase
- Resonance (correct)
- Precession
- Decay
What is the term for the voltage induced in a receiver coil when coherent magnetization cuts across the coil?
What is the term for the voltage induced in a receiver coil when coherent magnetization cuts across the coil?
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Which element is the most abundant in the human body?
Which element is the most abundant in the human body?
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Which of the following is NOT a type of motion within the atom?
Which of the following is NOT a type of motion within the atom?
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What is the atomic number of an atom?
What is the atomic number of an atom?
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What is the most commonly used MR-active nucleus in MRI?
What is the most commonly used MR-active nucleus in MRI?
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