Research output: Contribution to journal › Article › peer-review
Analytical solution for the inverting pulses with constant adiabaticity. / Ivanov, Konstantin L.; Snadin, Alexander V.; Kiryutin, Alexei S. et al.
In: Journal of magnetic resonance (San Diego, Calif. : 1997), Vol. 343, 107298, 01.10.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Analytical solution for the inverting pulses with constant adiabaticity
AU - Ivanov, Konstantin L.
AU - Snadin, Alexander V.
AU - Kiryutin, Alexei S.
AU - Lukzen, Nikita N.
N1 - Publisher Copyright: © 2022 Elsevier Inc.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - The exact solution was found for inverting pulses with constant adiabaticity for spin ½. The analytical relationship between the time-varying frequency of the microwave resonant field (or RF field in the case of NMR) and its amplitude time dependence such that the adiabaticity parameter remains constant for the single isochromat throughout the pulse is found. Comparison with EPR (hyperbolic tangent)-(hyperbolic secant) pulse method was carried out. On the basis of the analytical solution the pulses with different dependences of the microwave field amplitude conserving the constant adiabaticity have been constructed. The pulses exhibit rather sharp inversion selectivity that can be used in the field of EPR, NMR and MRI.
AB - The exact solution was found for inverting pulses with constant adiabaticity for spin ½. The analytical relationship between the time-varying frequency of the microwave resonant field (or RF field in the case of NMR) and its amplitude time dependence such that the adiabaticity parameter remains constant for the single isochromat throughout the pulse is found. Comparison with EPR (hyperbolic tangent)-(hyperbolic secant) pulse method was carried out. On the basis of the analytical solution the pulses with different dependences of the microwave field amplitude conserving the constant adiabaticity have been constructed. The pulses exhibit rather sharp inversion selectivity that can be used in the field of EPR, NMR and MRI.
KW - Exact solution for constant adiabaticity
KW - Frequency-swept pulses
KW - Inverting pulses
KW - Spin dynamics
UR - http://www.scopus.com/inward/record.url?scp=85140417741&partnerID=8YFLogxK
U2 - 10.1016/j.jmr.2022.107298
DO - 10.1016/j.jmr.2022.107298
M3 - Article
C2 - 36116162
AN - SCOPUS:85140417741
VL - 343
JO - Journal of Magnetic Resonance
JF - Journal of Magnetic Resonance
SN - 1090-7807
M1 - 107298
ER -
ID: 38417672