# al-zfilter-amplitude-12p2p3-cycling-p2.in # approach: 12-phase cycling the second pulse, the third pulse and the receiver # spin-5/2 echo and antiecho amplitude optimization # versus the second-pulse duration # in three-pulse z-filtered amplitude-modulated 3Q-MAS sequence, # the first-pulse duration p1 = 1.5 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 34 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 1.5 variable p3 2 } proc pulseq {} { global par maxdt $par(tsw) pulse $par(p1) $par(rf) x 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) $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}\ { 0 180 90}\ { 60 180 270}\ {120 180 90}\ {180 180 270}\ {240 180 90}\ {300 180 270}} { set par(ph2) [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 # -0.0212311099 3.74982259e-05 # -0.154776414 0.000265308698 # -0.441123732 0.000774920537 # -0.835713498 0.00155913776 # -1.2587889 0.00246233274 # -1.63698433 0.00318429426 # -1.90848128 0.00349223229 # -2.0239681 0.00343503363 # -1.95306993 0.00326388234 # -1.69690673 0.00315521535 # -1.29705516 0.00305178834 # -0.808109771 0.00270864168 # -0.27204195 0.00183631191 # 0.260614052 0.000245495709 # 0.715871283 -0.00204924271 # 1.02649106 -0.00475456337 # 1.16965098 -0.00730188629 # 1.1716547 -0.00904791296 # 1.07949608 -0.00960765941 # 0.931278958 -0.00906364737 # 0.749377729 -0.00790646415 # 0.548108026 -0.00679792611 # 0.332675542 -0.00631911432 # 0.0941856144 -0.00677585216 # -0.167437195 -0.00807171137 # -0.41269871 -0.00969297028 # -0.573209355 -0.0108852588 # -0.588734148 -0.0110044797 # -0.437525833 -0.00983236571 # -0.149671384 -0.00764657893 # 0.20819562 -0.00506096234 # 0.557492159 -0.00276197413 # 0.814424554 -0.00124439645 # END