# al-two-pulse-12-phase-cycling-p1.in # approach: 12-phase cycling the first pulse and the receiver # spin-5/2 central-transition echo amplitude optimization # versus the first-pulse duration # in two-pulse phase-modulated 3Q-MAS sequence, # the second-pulse duration p2 = 5 micro seconds spinsys { channels 27Al nuclei 27Al quadrupole 1 2 3e6 0 0 0 0 } par { proton_frequency 400e6 spin_rate 10000 variable tsw 0.5 sw 1.0e6/tsw np 41 crystal_file rep100 gamma_angles 10 start_operator 2*I1z detect_operator I1c verbose 1101 variable rf 100000 variable p2 5 } proc pulseq {} { global par maxdt $par(tsw) acq for {set i 1} {$i < $par(np)} {incr i} { pulse $par(tsw) $par(rf) $par(ph1) store 1 pulse $par(p2) $par(rf) x acq $par(ph31) reset prop 1 } } proc main {} { global par foreach p {{ 0 270}\ { 30 180}\ { 60 90}\ { 90 0}\ { 120 270}\ { 150 180}\ { 180 90}\ { 210 0}\ { 240 270}\ { 270 180}\ { 300 90}\ { 330 0}} { set par(ph1) [lindex $p 0] set par(ph31) [lindex $p 1] 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=41 # SW=2000000 # TYPE=FID # DATA # 0 0 # -0.0146392408 -0.000197548674 # -0.416897778 -0.0028192614 # -2.11847857 -0.0104376898 # -4.67077328 -0.022946956 # -6.83292603 -0.0334500125 # -8.66924697 -0.0236005579 # -10.3421114 0.0100923304 # -11.4001595 0.0514905987 # -11.0035496 0.074434114 # -8.89052483 0.0693267064 # -5.84866743 0.0597765166 # -3.09300539 0.0768549157 # -0.983371545 0.119343921 # 0.840956412 0.158200821 # 1.95287408 0.159589443 # 2.00327372 0.109678756 # 1.46144072 0.0591018624 # 0.96634725 0.0418918378 # 0.925838313 0.0135839695 # 1.16948766 -0.036638799 # 1.27824991 -0.0695738685 # 1.12706624 -0.0737509109 # 0.738704932 -0.0760153291 # -0.32809027 -0.0772064479 # -1.91975997 -0.0801168756 # -3.33136323 -0.0831102954 # -4.51958197 -0.0602257618 # -5.20831224 -0.0388972157 # -4.88345722 -0.0485674769 # -3.92753853 -0.0433851126 # -3.01541656 0.00481160818 # -2.13494147 0.0499427143 # -1.15340956 0.0807848387 # -0.184761464 0.110464058 # 0.546969092 0.12038674 # 1.05598629 0.11498638 # 1.1910893 0.137362417 # 1.00707015 0.173544312 # 0.849963339 0.192745955 # 0.862201922 0.207498058 # END