# Co-cog112(83,91,84,28).in

# spin-7/2 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

spinsys {
  channels 59Co
  nuclei   59Co
  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 N       112 
  variable wA      83
  variable wB      91
  variable wC      84
  variable wRec    28 
}

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

  acq -x
  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

  for {set j 0} {$j < $par(N)} {incr j} {

    set par(phA)   [expr $j*$par(wA)*360./$par(N)]
    set par(phB)   [expr $j*$par(wB)*360./$par(N)]
    set par(phC)   [expr $j*$par(wC)*360./$par(N)]
    set par(phREC) [expr $j*$par(wRec)*360./$par(N)]

    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 59Co: "
  puts [resfreq 59Co $par(proton_frequency)]
}

#SIMP
#NP=17
#SW=4000000
#TYPE=FID
#DATA
#0 0
#-1.04706466e-09 -4.19628998e-10
#-1.81151805e-09 -8.93520369e-10
#3.74859617e-08 -1.40993084e-09
#1.4629958e-06 -3.38941608e-09
#2.13406981e-05 -2.50948446e-08
#0.000167622163 -1.70962516e-07
#0.000834379255 -7.59835541e-07
#0.00290125293 -2.26383439e-06
#0.00748033481 -4.50466346e-06
#0.0147053325 -4.82409686e-06
#0.021619424 4.07385269e-06
#0.0200425641 3.51851029e-05
#-0.00417590943 0.000106142175
#-0.0693104135 0.000236134421
#-0.193235198 0.000441839945
#-0.387698708 0.000733622803
#END