Chirp pulse sequences for broadband π rotation
| Autor: | Navin Khaneja, Ashutosh Kumar, Sambeda Sarkar, Rudra N. Purusottam |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Nuclear and High Energy Physics business.industry Biophysics Physics::Optics Pulse sequence 010402 general chemistry Condensed Matter Physics 01 natural sciences Biochemistry 030218 nuclear medicine & medical imaging 0104 chemical sciences Pulse (physics) 03 medical and health sciences 0302 clinical medicine Optics Broadband Chirp Spin echo Ideal (ring theory) Adiabatic process business Rotation (mathematics) |
| Zdroj: | Journal of magnetic resonance (San Diego, Calif. : 1997). 328 |
| ISSN: | 1096-0856 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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