# na-shifted-echo-echo-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-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 0}\ { 60 0 90}\ { 90 0 180}\ {120 0 270}\ {150 0 0}\ {180 0 90}\ {210 0 180}\ {240 0 270}\ {270 0 0}\ {300 0 90}\ {330 0 180}\ { 0 90 90}\ { 30 90 180}\ { 60 90 270}\ { 90 90 0}\ {120 90 90}\ {150 90 180}\ {180 90 270}\ {210 90 0}\ {240 90 90}\ {270 90 180}\ {300 90 270}\ {330 90 0}\ { 0 180 270}\ { 30 180 0}\ { 60 180 90}\ { 90 180 180}\ {120 180 270}\ {150 180 0}\ {180 180 90}\ {210 180 180}\ {240 180 270}\ {270 180 0}\ {300 180 90}\ {330 180 180}\ { 0 270 90}\ { 30 270 180}\ { 60 270 270}\ { 90 270 0}\ {120 270 90}\ {150 270 180}\ {180 270 270}\ {210 270 0}\ {240 270 90}\ {270 270 180}\ {300 270 270}\ {330 270 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 # 0.198508433 5.55111512e-17 # 0.190703865 8.32667268e-16 # 0.180433993 2.22044605e-16 # 0.170914671 7.77156117e-16 # 0.165089525 2.22044605e-16 # 0.164781445 7.21644966e-16 # 0.170253421 1.11022302e-16 # 0.180251331 8.8817842e-16 # 0.192436016 3.33066907e-16 # 0.204020213 6.24500451e-16 # 0.212418803 1.01134379e-15 # 0.215768752 1.52655666e-16 # 0.213238308 6.9388939e-16 # 0.205099125 7.77156117e-16 # 0.192577157 2.77555756e-16 # 0.177534498 -3.60822483e-16 # END