题目内容

A longer pulse length will excite a:

A. ) narrower range of frequencies.
B. ) broader range of frequencies.
C. ) range of frequencies equal to the pulse time.

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A. ) Excitation bandwidth.
B. ) Receiver bandwidth.
C. ) Truncated RF wave.

A. ) equal to T1.
B. ) proportional to T1.
C. ) inversely proportional to T1.

A. ) faster than transverse relaxation.
B. ) slower than transverse relaxation.
C. ) the same as transverse relaxation.

A. ) tau.
B. ) Echo time.
C. ) 180 pulse.