# Bi-9Q-referencephase324.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 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      18
  variable NB      18
  variable deltapA 9
  variable deltapB -9
}

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
#4.39648318e-14 -9.75886039e-14
#-1.63424829e-13 -1.76303416e-13
#-2.00865991e-10 -1.84741111e-13
#-2.2738559e-08 9.80993065e-12
#-8.20435178e-07 4.07263334e-10
#-1.41618393e-05 7.47132956e-09
#-0.000145355915 7.93125623e-08
#-0.00101100044 5.60966955e-07
#-0.005188293 2.89433878e-06
#-0.0208340545 1.16041622e-05
#-0.0683086372 3.78801179e-05
#-0.188813954 0.000104362218
#-0.451087566 0.000249608255
#-0.950172451 0.000529929972
#-1.7936738 0.00101627057
#-3.07616868 0.00178471535
#END