# Bi-9Q-digitizedphase180.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
# nested phase cycling with digitized phase for receiver

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   I1z
  detect_operator  I1c
  verbose          1101
  variable rf      90000
  variable rf3     9300
  variable p2      4
  variable p3      2
  variable NA      18
  variable NC      10
  variable deltapA 9
  variable deltapC 1
}

proc pulseq {} {
  global par
  maxdt $par(tsw)

  acq -y
  for {set i 1} {$i < $par(np)} {incr i} {
    pulse $par(tsw) $par(rf)  $par(phA)
    store 2
    pulse $par(p2)  $par(rf)  $par(phB)
    pulse $par(p3)  $par(rf3) $par(phC)
    acq                 [expr $par(phREC) - 90]
    reset
    prop 2
  }
}

proc main {} {
  global par

  set par(phB)   0

  for {set jC 0} {$jC < $par(NC)} {incr jC} {
    set par(phC)   [expr $jC*360./$par(NC)]

    for {set jA 0} {$jA < $par(NA)} {incr jA} {
      set par(phA)   [expr $jA*360./$par(NA)]
      set par(phREC) [expr $par(deltapA)*$par(phA) + $par(deltapC)*$par(phC)]

      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 209Bi: "
  puts [resfreq 209Bi $par(proton_frequency)]
}

#SIMP
#NP=17
#SW=4000000
#TYPE=FID
#DATA
#0 0
#1.33226763e-15 1.26565425e-14
#-1.13353771e-13 1.50990331e-14
#-1.11625154e-10 6.3504757e-14
#-1.26325752e-08 5.66169334e-12
#-4.55797373e-07 2.26504149e-10
#-7.86768857e-06 4.15102308e-09
#-8.07532859e-05 4.40628383e-08
#-0.00056166691 3.11648618e-07
#-0.002882385 1.6079663e-06
#-0.0115744747 6.44675712e-06
#-0.0379492429 2.10445103e-05
#-0.104896641 5.79790104e-05
#-0.250604204 0.000138671253
#-0.527873584 0.00029440554
#-0.996485445 0.00056459476
#-1.7089826 0.000991508529
#END