# na-shifted-echo-amplitude-48-cycling-p3.in # approach: 48-phase cycling the first pulse, the third pulse and the receiver # spin-3/2 echo and antiecho amplitude optimization # versus the third-pulse duration # in three-pulse shifted-echo amplitude-modulated 3Q-MAS sequence, # the first-pulse duration p1 = 4 micro seconds # the second-pulse duration p2 = 4 micro seconds spinsys { channels 23Na nuclei 23Na quadrupole 1 1 1e6 1 0 0 0 } par { spin_rate 5000 variable tsw 0.25 sw 1.0e6/tsw np 17 crystal_file rep100 gamma_angles 10 proton_frequency 800e6 start_operator I1z detect_operator I1c verbose 1101 variable rf 90000 variable rf3 93000 variable p1 4 variable p2 4 } proc pulseq {} { global par maxdt $par(tsw) acq $par(ph31) pulse $par(p1) $par(rf) $par(ph1) pulse $par(p2) $par(rf) x for {set i 1} {$i < $par(np)} {incr i} { pulse $par(tsw) $par(rf3) $par(ph3) acq $par(ph31) } } proc main {} { global par foreach p {{ 0 0 270}\ { 60 0 90}\ {120 0 270}\ {180 0 90}\ {240 0 270}\ {300 0 90}\ { 0 45 0}\ { 60 45 180}\ {120 45 0}\ {180 45 180}\ {240 45 0}\ {300 45 180}\ { 0 90 90}\ { 60 90 270}\ {120 90 90}\ {180 90 270}\ {240 90 90}\ {300 90 270}\ { 0 135 180}\ { 60 135 0}\ {120 135 180}\ {180 135 0}\ {240 135 180}\ {300 135 0}\ { 0 180 270}\ { 60 180 90}\ {120 180 270}\ {180 180 90}\ {240 180 270}\ {300 180 90}\ { 0 225 0}\ { 60 225 180}\ {120 225 0}\ {180 225 180}\ {240 225 0}\ {300 225 180}\ { 0 270 90}\ { 60 270 270}\ {120 270 90}\ {180 270 270}\ {240 270 90}\ {300 270 270}\ { 0 315 180}\ { 60 315 0}\ {120 315 180}\ {180 315 0}\ {240 315 180}\ {300 315 0}} { set par(ph1) [lindex $p 0] set par(ph3) [lindex $p 1] set par(ph31) [lindex $p 2] set g [fsimpson] if [info exists f] { fadd $f $g funload $g } else { set f $g } } fsave $f $par(name).fid funload $f puts "Larmor frequency (Hz) of 23Na: " puts [resfreq 23Na $par(proton_frequency)] } # SIMP # NP=17 # SW=4000000 # TYPE=FID # DATA # 0 0 # 0.0605879996 2.22044605e-16 # 0.237746387 5.27355937e-16 # 0.490037728 5.13478149e-16 # 0.739335004 1.41553436e-15 # 0.890824698 2.19269047e-15 # 0.857489384 1.27675648e-15 # 0.582668738 2.92821323e-15 # 0.0558592671 2.81719092e-15 # -0.681035074 2.02615702e-15 # -1.53809629 2.0539126e-15 # -2.39213322 1.88737914e-15 # -3.10983537 1.60982339e-15 # -3.57528247 1.66533454e-16 # -3.71572367 2.77555756e-16 # -3.51879584 3.33066907e-16 # -3.03589484 1.11022302e-15 # END