Spoiling#
A repetition leaves transverse magnetisation behind, and the next one refocuses part of it. These two lessons measure what a spoiler gradient removes and what it does not.
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What it establishes |
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The steady state a gradient spoiler leaves, against the signal of an ideally spoiled repetition, and why no spoiler area closes the gap. |
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The quadratic phase increment that closes it, and the increments that leave the residual coherent. |