TY - JOUR
T1 - Jump-and-return sandwiches : a new family of binomial-like selective inversion sequences with improved performance
AU - Brenner, Tom
AU - Chen, Johnny
AU - Stait-Gardner, Tim
AU - Zheng, Gang
AU - Matsukawa, Shingo
AU - Price, William S.
PY - 2018
Y1 - 2018
N2 - A new family of binomial-like inversion sequences, named jump-and-return sandwiches (JRS), has been developed by inserting a binomial-like sequence into a standard jump-and-return sequence, discovered through use of a stochastic Genetic Algorithm optimisation. Compared to currently used binomial-like inversion sequences (e.g., 3–9–19 and W5), the new sequences afford wider inversion bands and narrower non-inversion bands with an equal number of pulses. As an example, two jump-and-return sandwich 10-pulse sequences achieved 95% inversion at offsets corresponding to 9.4% and 10.3% of the non-inversion band spacing, compared to 14.7% for the binomial-like W5 inversion sequence, i.e., they afforded non-inversion bands about two thirds the width of the W5 non-inversion band.
AB - A new family of binomial-like inversion sequences, named jump-and-return sandwiches (JRS), has been developed by inserting a binomial-like sequence into a standard jump-and-return sequence, discovered through use of a stochastic Genetic Algorithm optimisation. Compared to currently used binomial-like inversion sequences (e.g., 3–9–19 and W5), the new sequences afford wider inversion bands and narrower non-inversion bands with an equal number of pulses. As an example, two jump-and-return sandwich 10-pulse sequences achieved 95% inversion at offsets corresponding to 9.4% and 10.3% of the non-inversion band spacing, compared to 14.7% for the binomial-like W5 inversion sequence, i.e., they afforded non-inversion bands about two thirds the width of the W5 non-inversion band.
KW - nuclear magnetic resonance
KW - solvents
UR - http://handle.westernsydney.edu.au:8081/1959.7/uws:45473
U2 - 10.1016/j.jmr.2018.01.008
DO - 10.1016/j.jmr.2018.01.008
M3 - Article
SN - 1090-7807
VL - 288
SP - 100
EP - 108
JO - Journal of Magnetic Resonance
JF - Journal of Magnetic Resonance
ER -