# al-zfilter-phase-selective-p1p3-cycling-p2.in # approach: 48-phase cycling the first pulse, the third pulse and the receiver # spin-5/2 echo amplitude optimization # versus the second-pulse duration # in three-pulse z-filtered phase-modulated +3Q-MAS sequence, # the first-pulse duration p1 = 4 micro seconds # the third-pulse duration p3 = 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 17 crystal_file rep10 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 0}\ { 30 90 270}\ { 60 90 180}\ { 90 90 90}\ {120 90 0}\ {150 90 270}\ {180 90 180}\ {210 90 90}\ {240 90 0}\ {270 90 270}\ {300 90 180}\ {330 90 90}\ { 0 180 90}\ { 30 180 0}\ { 60 180 270}\ { 90 180 180}\ {120 180 90}\ {150 180 0}\ {180 180 270}\ {210 180 180}\ {240 180 90}\ {270 180 0}\ {300 180 270}\ {330 180 180}\ { 0 270 180}\ { 30 270 90}\ { 60 270 0}\ { 90 270 270}\ {120 270 180}\ {150 270 90}\ {180 270 0}\ {210 270 270}\ {240 270 180}\ {270 270 90}\ {300 270 0}\ {330 270 270}} { 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 27Al: " puts [resfreq 27Al $par(proton_frequency)] } # SIMP # NP=17 # SW=4000000 # TYPE=FID # DATA # 0 0 # -0.17497637 0.000101154792 # -1.22817016 0.000469839957 # -3.32665839 0.000427076041 # -5.83174916 -0.000994276217 # -7.79068849 -0.00328604219 # -8.47983254 -0.0040579956 # -7.64748675 -0.00168108336 # -5.5150094 0.00204696898 # -2.71188202 0.00326878816 # -0.115011059 0.000352487657 # 1.48091159 -0.00385240993 # 1.74889385 -0.0045111808 # 1.00559451 0.000453596314 # -0.0179636817 0.00846883585 # -0.650352278 0.0149400348 # -0.620167913 0.0169930968 # END