# al-zfilter-amplitude-12p2p3-filtering-p3a.in # approach: filtering the desired coherences (-1Q and +5Q) 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 # 4.57369428e-05 2.89461472e-07 # 0.000438064123 2.47504578e-06 # 0.00162112099 8.40392491e-06 # 0.00397909143 1.87968054e-05 # 0.00777434422 3.2761385e-05 # 0.0132035307 4.87477408e-05 # 0.0204524584 6.62206457e-05 # 0.0296608996 8.64894619e-05 # 0.0408360558 0.000112008955 # 0.0538084235 0.000144943129 # 0.0682683744 0.000186306149 # 0.0838583716 0.000236375787 # 0.100266797 0.000295931794 # 0.117267839 0.000366965427 # 0.134701786 0.000451893449 # 0.152454446 0.00055190448 # 0.170482728 0.000665921868 # 0.18886386 0.000790800704 # 0.207817013 0.000922203461 # 0.227673477 0.00105529776 # 0.248803106 0.00118479811 # 0.271528627 0.00130475773 # 0.296070727 0.00140924105 # 0.322534629 0.00149421966 # 0.350901315 0.00155935369 # 0.380997041 0.00160812403 # 0.412467569 0.00164632977 # 0.444800542 0.00168030978 # 0.477410792 0.00171626812 # 0.509761705 0.00176086533 # 0.541462088 0.0018217128 # 0.57229164 0.00190637395 # 0.602169531 0.00202009345 # 0.631113218 0.00216358432 # 0.659214358 0.00233195761 # 0.686634986 0.00251520207 # 0.713609151 0.00269974246 # 0.740424341 0.00287008139 # 0.767381628 0.00301031488 # 0.79475755 0.00310610789 # 0.822770381 0.00314706387 # 0.851537125 0.00312867527 # 0.881025517 0.00305324449 # 0.911016569 0.00292938993 # 0.941092232 0.00277003847 # 0.970668576 0.00258980261 # 0.999088086 0.00240327241 # 1.02575444 0.00222482693 # 1.05026261 0.00206899806 # 1.07247362 0.00194995927 # 1.09251277 0.00187960854 # 1.11070437 0.001864817 # 1.12747464 0.00190496671 # 1.14326038 0.00199081718 # 1.15845092 0.0021051194 # 1.17336639 0.00222486366 # 1.18826332 0.00232493494 # 1.20335453 0.00238264976 # 1.21882092 0.00238211584 # 1.23479605 0.00231721937 # 1.25132025 0.00219237077 # 1.26827628 0.00202084097 # 1.28533593 0.00182148684 # 1.30195417 0.00161525068 # 1.31742976 0.00142259472 # 1.33102021 0.00126226341 # 1.34207073 0.00115098416 # END