# Bi-7Q-referencephase196.in

# spin-9/2 anti echo and echo amplitude optimization
# versus the first-pulse duration
# in three-pulse amplitude-modulated z-filter 7QMAS,
# the second-pulse duration p2 = 4 micro seconds
# the third-pulse duration p3 = 2 micro seconds
# nested phase cycling with reference receiver phase

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      14
  variable NB      14
  variable deltapA 7
  variable deltapB -7
}

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(phC)   0

  for {set jB 0} {$jB < $par(NB)} {incr jB} {
    set par(phB)   [expr $jB*360./$par(NB)]

    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) + $par(deltapB)*$par(phB)]

      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
#1.92956762e-13 -2.50910404e-14
#-1.05879749e-11 -1.06892273e-12
#-2.3311883e-07 4.9785509e-11
#-1.43799967e-05 6.60077171e-09
#-0.000261877157 1.31106768e-07
#-0.00233371945 1.12555425e-06
#-0.0130896325 5.5698692e-06
#-0.0536529272 1.86185116e-05
#-0.174759461 4.7141014e-05
#-0.470950776 9.95782244e-05
#-1.0724198 0.000191045966
#-2.10248378 0.000355511779
#-3.62573405 0.000660589883
#-5.62680361 0.00120996827
#-8.028288 0.00211506406
#-10.7226466 0.00343965443
#END