# na-shifted-echo-antiecho-selective-48-phase-cycling-p2.in # approach: 48-phase cycling the first pulse, the third pulse and the receiver # spin-3/2 echo amplitude optimization # versus the second-pulse duration # in three-pulse shifted-echo phase-modulated 3Q-MAS sequence, # the first-pulse duration p1 = 4 micro seconds # the third-pulse duration p3 = 2 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 9300 variable p1 4 variable p3 2 } proc pulseq {} { global par maxdt $par(tsw) pulse $par(p1) $par(rf) $par(ph1) store 10 reset acq $par(ph31) for {set i 1} {$i < $par(np)} {incr i} { reset prop 10 pulse [expr ($i)*$par(tsw)] $par(rf) x pulse $par(p3) $par(rf3) $par(ph3) acq $par(ph31) } } proc main {} { global par foreach p {{ 0 0 270}\ { 30 0 180}\ { 60 0 90}\ { 90 0 0}\ {120 0 270}\ {150 0 180}\ {180 0 90}\ {210 0 0}\ {240 0 270}\ {270 0 180}\ {300 0 90}\ {330 0 0}\ { 0 90 90}\ { 30 90 0}\ { 60 90 270}\ { 90 90 180}\ {120 90 90}\ {150 90 0}\ {180 90 270}\ {210 90 180}\ {240 90 90}\ {270 90 0}\ {300 90 270}\ {330 90 180}\ { 0 180 270}\ { 30 180 180}\ { 60 180 90}\ { 90 180 0}\ {120 180 270}\ {150 180 180}\ {180 180 90}\ {210 180 0}\ {240 180 270}\ {270 180 180}\ {300 180 90}\ {330 180 0}\ { 0 270 90}\ { 30 270 0}\ { 60 270 270}\ { 90 270 180}\ {120 270 90}\ {150 270 0}\ {180 270 270}\ {210 270 180}\ {240 270 90}\ {270 270 0}\ {300 270 270}\ {330 270 180}} { 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 # -0.00844079727 0 # -0.0300033277 5.55111512e-17 # -0.0571812947 3.88578059e-16 # -0.0822072888 4.99600361e-16 # -0.0994019864 9.99200722e-16 # -0.106368866 3.88578059e-16 # -0.103890401 1.22124533e-15 # -0.0949440178 3.33066907e-16 # -0.0834567684 6.66133815e-16 # -0.0732547786 8.18789481e-16 # -0.0673531098 5.89805982e-16 # -0.0675200858 5.27355937e-16 # -0.0740392486 1.38777878e-16 # -0.0856996124 3.60822483e-16 # -0.100107007 6.10622664e-16 # -0.114329323 5.82867088e-16 # END