# al-zfilter-amplitude-12p2p3-filtering-p3b.in # approach: filtering the desired coherences (-5Q and +1Q) after the first pulse # and (-2Q and 4Q) after the second pulse # spin-5/2 echo and antiecho amplitude optimization # versus the third-pulse duration # in three-pulse z-filtered amplitude-modulated 3Q-MAS sequence, # the first-pulse duration p1 = 1.5 micro seconds # the second-pulse duration p2 = 2 micro seconds spinsys { channels 27Al nuclei 27Al quadrupole 1 2 3e6 0 0 0 0 } par { spin_rate 5000 variable tsw 0.25 sw 1.0e6/tsw np 68 crystal_file rep100 gamma_angles 10 proton_frequency 800e6 start_operator 12*I1z detect_operator I1c verbose 1101 variable rf 90000 variable rf3 9300 variable p1 1.5 variable p2 2 } proc pulseq {} { global par maxdt $par(tsw) matrix set 1 coherence {1 -5} matrix set 2 coherence {-2 4} acq -y pulse $par(p1) $par(rf) x filter 1 pulse $par(p2) $par(rf) x filter 2 for {set i 1} {$i < $par(np)} {incr i} { pulse $par(tsw) $par(rf3) x acq -y } } proc main {} { global par fsave [fsimpson] $par(name).fid puts "Larmor frequency (Hz) of 27Al: " puts [resfreq 27Al $par(proton_frequency)] } # SIMP # NP=17 # SW=4000000 # TYPE=FID # DATA # 0 0 # -0.180662742 0.000496929713 # -0.437998111 0.000964556999 # -0.739184298 0.00140642883 # -1.04894002 0.00180994743 # -1.33505043 0.00216222 # -1.57267806 0.00247124878 # -1.74668668 0.00278368446 # -1.85176254 0.00319031661 # -1.8907558 0.00381390037 # -1.87207029 0.00478019353 # -1.80704077 0.00617920661 # -1.70799958 0.00802753507 # -1.58720896 0.0102441074 # -1.45643723 0.012649306 # -1.32686297 0.0149902689 # -1.20897784 0.0169869635 # -1.11221606 0.0183879533 # -1.04423957 0.0190213929 # -1.00995989 0.0188274271 # -1.01045269 0.0178654877 # -1.04211712 0.016298712 # -1.09660262 0.014361485 # -1.16183483 0.0123183437 # -1.22400995 0.0104256856 # -1.27006286 0.00890555084 # -1.28998298 0.00793270913 # -1.27841338 0.00763037301 # -1.23522393 0.00806754487 # -1.16505088 0.00925112498 # -1.07595866 0.0111119168 # -0.977529637 0.0134915341 # -0.878901807 0.0161393784 # -0.7872932 0.0187285612 # -0.707343866 0.0208969725 # -0.641355521 0.022308383 # -0.590131541 0.0227172614 # -0.553774813 0.0220198741 # -0.531944381 0.0202764415 # -0.523516769 0.0176951235 # -0.525916804 0.0145834533 # -0.534632835 0.0112834701 # -0.543435077 0.00810809425 # -0.54535902 0.00529761325 # -0.534132129 0.00300871261 # -0.505662173 0.00133044014 # -0.459130752 0.000309581926 # -0.397307937 -3.35610368e-05 # -0.325996642 0.000288945501 # -0.252653223 0.00121238063 # -0.184471685 0.00260253909 # -0.126673393 0.00424970347 # -0.0816718367 0.00587823525 # -0.0492199719 0.00718365929 # -0.0273077861 0.00789496387 # -0.0133879554 0.00783829245 # -0.00533983726 0.00697920058 # -0.00176496679 0.00543253823 # -0.00166180861 0.00343646185 # -0.00387712212 0.00129628594 # -0.00677729286 -0.000684962574 # -0.00834139935 -0.00226828177 # -0.00659135621 -0.00331630141 # -0.000115373596 -0.00379951721 # 0.0115522907 -0.00377623162 # 0.027791393 -0.00336086848 # 0.0470373521 -0.00269335794 # 0.0672219877 -0.00191646442 # END