# al-two-pulse-amplitude-filtering-p1.in # approach: filtering the desired coherences (-3Q and +3Q) after the first pulse # spin-5/2 echo and antiecho amplitude optimization # versus the first-pulse duration # in two-pulse amplitude-modulated 3Q-MAS sequence, # the second-pulse duration p2 = 5 micro seconds spinsys { channels 27Al nuclei 27Al quadrupole 1 2 3e6 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 6*I1z detect_operator I1c verbose 1101 variable rf 100000 variable p2 5 } proc pulseq {} { global par maxdt $par(tsw) matrix set 1 coherence {3 -3} acq -y for {set i 1} {$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 27Al: " puts [resfreq 27Al $par(proton_frequency)] } # SIMP # NP=41 # SW=2000000 # TYPE=FID # DATA # 0 0 # 0.00042083001 -0.000124179732 # -0.0121684689 -0.00177652925 # -0.118065788 -0.00683608958 # -0.251580631 -0.015738505 # -0.251699077 -0.0229170112 # -0.210611111 -0.0191267526 # -0.209728465 -0.0058659186 # -0.279557385 0.00731697107 # -0.285455337 0.0125981502 # -0.0919356981 0.0116353674 # 0.200551631 0.0124361422 # 0.356763009 0.0218565582 # 0.341032381 0.0369453508 # 0.283319269 0.0497618589 # 0.182843498 0.0504533315 # 0.0753506948 0.0364801095 # 0.0419515774 0.0225806297 # 0.132031841 0.0156723509 # 0.304198293 0.0020563727 # 0.394019998 -0.0190666334 # 0.423002456 -0.0267889406 # 0.428479462 -0.0234247434 # 0.318499878 -0.0309725903 # 0.0512677453 -0.0416808563 # -0.222719542 -0.0425669169 # -0.29728014 -0.0303572423 # -0.265317834 -0.0123274347 # -0.196627009 -0.002476785 # 0.0150690672 -0.000328797004 # 0.253239212 0.00880132116 # 0.26646581 0.0268968147 # 0.115070907 0.041030347 # 0.0145285311 0.0534649996 # 0.0562391947 0.0663366113 # 0.0987689535 0.0686076288 # 0.0884627081 0.0668917328 # 0.110984658 0.0813293277 # 0.171028877 0.0946911896 # 0.276469109 0.0939606915 # 0.381772691 0.100627787 # END