# Bi-9Q-fil180.in # spin-9/2 anti echo and echo amplitude optimization # versus the first-pulse duration # in three-pulse amplitude-modulated z-filter 9QMAS, # the second-pulse duration p2 = 4 micro seconds # the third-pulse duration p3 = 2 micro seconds spinsys { channels 209Bi nuclei 209Bi 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 180*I1z detect_operator I1c verbose 1101 variable rf 90000 variable rf3 9300 variable p2 4 variable p3 2 } proc pulseq {} { global par maxdt $par(tsw) matrix set 1 coherence {-9 9} matrix set 2 coherence {0} acq -y for {set i 1} {$i < $par(np)} {incr i} { pulse $par(tsw) $par(rf) x store 2 filter 1 pulse $par(p2) $par(rf) x filter 2 pulse $par(p3) $par(rf3) x acq -y reset prop 2 } } proc main {} { global par fsave [fsimpson] $par(name).fid puts "Larmor frequency (Hz) of 209Bi: " puts [resfreq 209Bi $par(proton_frequency)] } #SIMP #NP=17 #SW=4000000 #TYPE=FID #DATA #0 0 #-4.20893614e-17 1.44110291e-18 #-1.26133992e-13 2.37750929e-17 #-1.11642438e-10 3.96880112e-14 #-1.26325849e-08 5.63116384e-12 #-4.55797391e-07 2.26471082e-10 #-7.86768859e-06 4.15099188e-09 #-8.0753286e-05 4.40628146e-08 #-0.00056166691 3.11648595e-07 #-0.002882385 1.60796628e-06 #-0.0115744747 6.44675708e-06 #-0.0379492429 2.10445102e-05 #-0.104896641 5.79790104e-05 #-0.250604204 0.000138671253 #-0.527873584 0.00029440554 #-0.996485445 0.00056459476 #-1.7089826 0.000991508529 #END