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In this paper, we present various chirp pulse sequences for implementing a broadband π rotation, which can serve as an ideal refocusing pulse element in a spin echo pulse sequence.… Click to show full abstract
In this paper, we present various chirp pulse sequences for implementing a broadband π rotation, which can serve as an ideal refocusing pulse element in a spin echo pulse sequence. These sequences are composed of three pulse elements each of which do adiabatic passage at rate a or 2a in either backward or forward direction. Various possible combinations are considered and different variants are presented. They all implement a broadband π rotation. We present the theory of such composite chirp sequences along with simulations and experiments.
Journal Title: Journal of magnetic resonance
Year Published: 2021
Link to full text (if available)
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