# na-two-pulse-phase-filtering-p1.in # approach: filtering the desired coherence (-3Q) after the first pulse # spin-3/2 central-transition echo amplitude optimization # versus the first-pulse duration # in two-pulse phase-modulated -3Q-MAS sequence, # the second-pulse duration p2 = 5 micro seconds spinsys { channels 23Na nuclei 23Na quadrupole 1 1 1e6 0 0 0 0 } par { proton_frequency 400e6 spin_rate 10000 variable tsw 0.5 sw 1.0e6/tsw np 41 crystal_file rep100 gamma_angles 10 start_operator 24*I1z detect_operator I1c verbose 1101 variable rf 100000 variable p2 5 } proc pulseq {} { global par maxdt $par(tsw) matrix set 1 coherence {-3} acq for {set i 1} {$i < $par(np)} {incr i} { pulse $par(tsw) $par(rf) x store 2 filter 1 pulse $par(p2) $par(rf) x acq -y reset prop 2 } } proc main {} { global par fsave [fsimpson] $par(name).fid puts "Larmor frequency (Hz) of 23Na: " puts [resfreq 23Na $par(proton_frequency)] } # SIMP # NP=41 # SW=2000000 # TYPE=FID # DATA # 0 0 # 0.00125679417 -9.26929829e-18 # 0.0339282577 -4.53317312e-17 # 0.195744737 -6.63178447e-17 # 0.566434533 -1.24686265e-16 # 1.09245834 -2.12067214e-16 # 1.63751862 -4.57963119e-16 # 2.10867748 -5.73517935e-16 # 2.46906347 -7.50171342e-16 # 2.71331348 -6.03437707e-16 # 2.86908614 -6.78056363e-16 # 2.95538752 -6.43365426e-16 # 2.97951815 -5.82813497e-16 # 2.96661858 -3.4187621e-16 # 2.90320646 -3.22529471e-16 # 2.73287153 -3.30748359e-16 # 2.45520283 -6.21207551e-16 # 2.12660292 -6.92549308e-16 # 1.78857522 -6.0597963e-16 # 1.46644566 -3.24013487e-16 # 1.18593134 -2.04320304e-16 # 0.968441965 -1.27440706e-16 # 0.845548698 -1.79044419e-16 # 0.859731422 -4.26744559e-16 # 1.03120914 -4.44631631e-16 # 1.33527906 -4.02551096e-16 # 1.69308901 -4.18356843e-16 # 1.99106038 -3.63689917e-16 # 2.14858566 -4.55309404e-16 # 2.14846382 -5.19137815e-16 # 2.00810777 -4.9840838e-16 # 1.76322478 -2.02163743e-16 # 1.45576869 -1.35526869e-16 # 1.13837145 -1.81696787e-16 # 0.884901173 -7.1678382e-17 # 0.72046018 -8.71279312e-17 # 0.574821363 -1.80343613e-16 # 0.377560716 -2.39222463e-16 # 0.140554076 -2.29370078e-16 # -0.0765976066 -2.15542757e-16 # -0.222412628 -2.66451387e-16 # END