# al-split-t1-5Q-antiecho-phase-filtering-p2.in # oQ -> 5Q -> 1Q -> -1Q # approach: filtering the desired coherences (5Q) after the first pulse # and (1Q) after the second pulse # spin-5/2 antiecho amplitude optimization # versus the second-pulse duration # in three-pulse split-t1 phase-modulated 5Q-MAS sequence, # the first-pulse duration p1 = 15 micro seconds # the third-pulse duration p3 = 2 micro seconds spinsys { channels 27Al nuclei 27Al quadrupole 1 1 3e6 1 0 0 0 } par { spin_rate 5000 variable tsw 0.5 sw 1.0e6/tsw np 34 crystal_file rep10 gamma_angles 10 proton_frequency 800e6 start_operator 160*I1z detect_operator I1c verbose 1101 variable rf 90000 variable rf3 90000 variable p1 15 variable p3 2 } proc pulseq {} { global par maxdt $par(tsw) matrix set 1 coherence {5} matrix set 2 coherence {1} pulse $par(p1) $par(rf) x store 10 reset acq -y for {set i 1} {$i < $par(np)} {incr i} { reset prop 10 filter 1 pulse [expr ($i)*$par(tsw)] $par(rf) x filter 2 pulse $par(p3) $par(rf3) x acq -y } } proc main {} { global par fsave [fsimpson] $par(name).fid puts "Larmor frequency (Hz) of 27Al: " puts [resfreq 27Al $par(proton_frequency)] } # SIMP # NP=17 # SW=4000000 # TYPE=FID # DATA # 0 0 # 0.0510608567 1.90849398e-16 # 0.568198454 -9.37814039e-17 # 1.48049325 3.13623493e-16 # 1.38235231 9.38180847e-16 # -0.491862054 2.75751734e-16 # -2.34574461 4.132557e-15 # -2.66048054 2.23385091e-15 # -1.85343817 -7.58668277e-16 # -1.23579646 -1.92891564e-16 # -1.80990131 2.24024341e-15 # -2.57058204 3.65765647e-15 # -2.65773322 4.1177392e-15 # -2.21188773 2.47844854e-15 # -0.576324816 -1.53136532e-15 # 1.99675571 -4.11306178e-15 # 4.49232299 -7.00400887e-15 # 5.36255371 -4.97521759e-15 # 2.86848469 1.14625426e-15 # -0.922828507 1.4482861e-15 # -2.62436675 2.25229697e-15 # -2.06102322 1.10613324e-15 # -1.27580563 -1.83969517e-15 # -0.253584248 -3.22445563e-15 # 0.985279132 1.90023542e-16 # 1.14610862 1.19501419e-15 # 0.450953683 -6.68183338e-16 # -0.54588908 3.90451992e-16 # -2.23443906 2.2958478e-15 # -3.32110451 2.37633037e-15 # -3.09230707 2.13126291e-15 # -2.9075078 4.60189064e-16 # -2.98173125 5.23833506e-15 # -2.21555186 5.86460121e-15 # END