# al-zfilter-phase-p1p2-cycling-p2.in # approach: 48-phase cycling the first pulse, the second 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 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 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) $par(ph2) pulse $par(p3) $par(rf3) x 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 0}\ { 30 90 90}\ { 60 90 180}\ { 90 90 270}\ {120 90 0}\ {150 90 90}\ {180 90 180}\ {210 90 270}\ {240 90 0}\ {270 90 90}\ {300 90 180}\ {330 90 270}\ { 0 180 90}\ { 30 180 180}\ { 60 180 270}\ { 90 180 0}\ {120 180 90}\ {150 180 180}\ {180 180 270}\ {210 180 0}\ {240 180 90}\ {270 180 180}\ {300 180 270}\ {330 180 0}\ { 0 270 180}\ { 30 270 270}\ { 60 270 0}\ { 90 270 90}\ {120 270 180}\ {150 270 270}\ {180 270 0}\ {210 270 90}\ {240 270 180}\ {270 270 270}\ {300 270 0}\ {330 270 90}} { set par(ph1) [lindex $p 0] set par(ph2) [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 # 0.866488761 0.0313056787 # 2.35746725 0.0560730976 # 2.6560833 0.0593702164 # 0.997039487 0.0370648212 # -1.98822512 -1.22828019e-05 # -5.34349151 -0.0383467581 # -8.64864081 -0.0746999919 # -11.730575 -0.111103982 # -13.9443927 -0.1416416 # -14.2524827 -0.15287684 # -12.1879049 -0.138458815 # -8.48592875 -0.108061038 # -4.57322364 -0.0784716084 # -1.69047506 -0.0589180478 # -0.5659092 -0.0494873172 # -1.44734185 -0.0496487111 # END