analoghfimg = [hfimgwfm]
# Evaporate into the dimple
s, cpowend = odt.crossbeam_dimple_evap(s, toENDBFIELD, analoghfimg)
# Ramp up the lattice
s = lattice.dimple_to_lattice(s, cpowend)
#########################################
## OTHER TTL EVENTS: probekill, braggkill, rf, quick2
#########################################
# Braggkill
if DL.braggkill == 1:
print "Using Bragg Kill"
s.wait(DL.braggkilltime)
s = manta.OpenShutterBragg(s, DL.shutterdelay)
s.digichg('bragg', 1)
s.wait(DL.braggkilldt)
s.digichg('brshutter', 1) # to close shutter
s.digichg('bragg', 0)
s.wait(-DL.braggkilldt)
s.wait(-DL.braggkilltime)
# Probe Kill
if DL.probekill == 1:
s.wait(DL.probekilltime)
s.wait(-10)
s.digichg('prshutter', 0)
s.wait(10)
s.wait(lbf.rfpulsedt)
s.digichg('rfttl',0)
s.wait(-lbf.rfpulsedt)
s.wait(-lbf.rftime)
# Braggkill
if lbf.braggkill == 1:
s.wait( lbf.braggkilltime)
if lbf.kill_hfimg2 == 1 :
print "hfimg2 on"
s.wait(-50)
s.digichg('hfimg2',1)
s.wait(50)
s = manta.OpenShutterBragg(s,lbf.shutterdelay)
s.digichg('bragg',1)
s.wait( lbf.braggkilldt)
s.digichg('brshutter',1) # to close shutter
s.digichg('bragg',0)
if lbf.kill_hfimg2 == 1:
s.digichg('hfimg2',0)
s.wait( -lbf.braggkilldt)
s.wait( -lbf.braggkilltime )
#########################################
## TTL RELEASE FROM LATTICE
#########################################
#RELEASE FROM LATICE
if int(report['LATTICEBRAGGFIELD']['rf']) == 1:
rftime = float(report['LATTICEBRAGGFIELD']['rftime'])
rfpulsedt = float(report['LATTICEBRAGGFIELD']['rfpulsedt'])
s.wait(rftime)
s.digichg('rfttl', 1)
s.wait(rfpulsedt)
s.digichg('rfttl', 0)
s.wait(-rfpulsedt)
s.wait(-rftime)
#BLOW AWAY SHOT WITH BRAGG
if int(report['LATTICEBRAGGFIELD']['braggkill']) == 1:
braggkilltime = float(report['LATTICEBRAGGFIELD']['braggkilltime'])
braggkilldt = float(report['LATTICEBRAGGFIELD']['braggkilldt'])
s.wait(braggkilltime)
s = manta.OpenShutterBragg(
s, float(report['LATTICEBRAGGFIELD']['shutterdelay']))
s.digichg('bragg', 1)
s.wait(braggkilldt)
s.digichg('brshutter', 1) # to close shutter
s.digichg('bragg', 0)
s.digichg('hfimg2', int(report['LATTICEBRAGGFIELD']['hfimg2']))
s.wait(-braggkilldt)
s.wait(-braggkilltime)
#RELEASE FROM LATICE
latticeoff = float(report['LATTICEBRAGGFIELD']['latticeoff'])
s.wait(latticeoff)
s.digichg('greenttl1', 0)
s.digichg('greenttl2', 0)
s.digichg('greenttl3', 0)
s.digichg('irttl1', 0)
#SEQUENCE
s = seq.sequence(stepsize)
s = gen.initial(s)
s.wait(200.)
#TAKE PICTURES
trap_on_picture = 0
light = 'probe'
camera = 'manta'
s = andor.OpenShuttersProbe(s)
if light == 'bragg':
s = manta.OpenShutterBragg(s)
if camera == 'manta':
texp = 0.006
noatoms = 200.0
#PICTURE OF ATOMS
s = manta.MantaPicture(s, texp, light, 1)
s.wait(noatoms)
#print s.digital_chgs_str(500,100000.,['cameratrig','probe','odtttl','prshutter'])
#After taking a picture sequence returns at time of the last probe strobe
#Wait 50ms to get past the end
s.wait(50.0)
s = gen.shutdown(s)
s.digichg('odtttl', 0)
def dimple_to_lattice(s, cpowend):
print "----- LATTICE LOADING RAMPS -----"
# Find out which is the longest of the ramps we are dealing with:
maxX =max( [xdomain(DL.latticeV0)[1] ,\
xdomain(DL.irpow)[1],\
xdomain(DL.grpow1)[1],\
xdomain(DL.grpow2)[1],\
xdomain(DL.grpow3)[1],\
xdomain(DL.a_s)[1]] )
print "Largest x value = %.3f ms\n" % maxX
# We define the times for which all functions will be evaluated
# MIN TIME TO DO DIGITAL EXTENSION
DIGEXTENSION = 2050.
if DL.image >= DIGEXTENSION:
Xendtime = DIGEXTENSION
else:
Xendtime = DL.image
Nnew = int(math.floor(Xendtime / DL.ss))
Xnew = numpy.arange(Xendtime / Nnew, DL.image, Xendtime / Nnew)
print "X array defined from dt:"
print "DL.ss =", DL.ss
print "x0 = ", Xnew[0]
print "xf = ", Xnew[-1]
print "xdt = ", Xnew[1] - Xnew[0]
print "%d samples" % Nnew
print 'x shape = ', Xnew.shape
# Define how we want to ramp up the lattice depth
v0_ramp, xy_v0, v0set = interpolate_ramp(DL.latticeV0)
v0 = v0_ramp(Xnew)
###########################################
#### AXIS DEFINITIONS FOR PLOTS ###
###########################################
fig = plt.figure(figsize=(4.5 * 1.05, 8. * 1.1))
ax0 = fig.add_axes([0.18, 0.76, 0.76, 0.20])
ax2 = fig.add_axes([0.18, 0.645, 0.76, 0.11])
ax3 = fig.add_axes([0.18, 0.53, 0.76, 0.11])
ax1 = fig.add_axes([0.18, 0.415, 0.76, 0.11])
ax5 = fig.add_axes([0.18, 0.30, 0.76, 0.11])
ax4 = fig.add_axes([0.18, 0.185, 0.76, 0.11])
ax6 = fig.add_axes([0.18, 0.07, 0.76, 0.11])
allax = [ax0, ax1, ax2, ax3, ax4, ax5, ax6]
for ax in allax:
ax.axvline(DL.image, linewidth=1., color='black', alpha=0.6)
lw = 1.5
labelx = -0.12
legsz = 8.
xymew = 0.5
xyms = 9
ax0.plot(Xnew, v0, 'b', lw=2.5, label='Lattice depth')
ax0.plot(xy_v0[:, 0], xy_v0[:, 1], 'x', color='blue', ms=5.)
ax0.plot(v0set[:, 0], v0set[:, 1], '.', mew=xymew, ms=xyms, color='blue')
###########################################
#### USER DEFINED RAMPS: IR, GR, and U ###
###########################################
# Define how we want to ramp up the IR power
if DIMPLE.allirpow > 0.:
ir_offset = DIMPLE.allirpow
else:
ir_offset = DIMPLE.ir1pow2
ir_ramp, xy_ir, ir = interpolate_ramp(DL.irpow, yoffset=ir_offset)
dt_ir = numpy.amax(ir[:, 0]) - numpy.amin(ir[:, 0])
N_ir = int(math.floor(dt_ir / DL.ss))
x_ir = numpy.arange(dt_ir / N_ir, dt_ir, dt_ir / N_ir)
y_ir = ir_ramp(Xnew)
if v0.size > y_ir.size:
y_ir = numpy.append(y_ir, (v0.size - y_ir.size) * [y_ir[-1]])
elif v0.size < y_ir.size:
y_ir = y_ir[0:v0.size]
if v0.size != y_ir.size:
msg = "IRPOW ERROR: number of samples in IR ramp and V0 ramp does not match!"
errormsg.box('LATTICE LOADING ERROR', msg)
exit(1)
alpha_clip_range = 0.1
if (v0 > y_ir + alpha_clip_range).any():
msg = "IRPOW ERROR: not enough power to get desired lattice depth"
print msg
bad = numpy.where(v0 > y_ir + alpha_clip_range)
timefail = int(bad[0][0]) * float(DL.ss)
msg = msg + "\nFirst bad sample = %d out of %d" % (bad[0][0], v0.size)
msg = msg + "\n t = %f " % timefail
msg = msg + "\n v0 = %f " % v0[bad[0][0]]
msg = msg + "\n ir = %f " % y_ir[bad[0][0]]
print v0[bad[0][0]]
print y_ir[bad[0][0]]
errormsg.box('LATTICE LOADING ERROR', msg)
exit(1)
ax0.plot(xy_ir[:, 0], xy_ir[:, 1], 'x', color='darkorange', ms=5.)
ax0.plot(ir[:, 0], ir[:, 1], '.', mew=xymew, ms=xyms, color='darkorange')
ax0.plot(Xnew, y_ir, lw=lw, color='darkorange', label='irpow')
# Define how we want to ramp up the GR power
grwfms = {}
splmrkr = ['x', '+', 'd']
ptsmrkr = ['^', 's', 'p']
for i, grramp in enumerate([(DL.grpow1, DIMPLE.gr1pow2),
(DL.grpow2, DIMPLE.gr2pow2),
(DL.grpow3, DIMPLE.gr3pow2)]):
ramppts = grramp[0]
ramp0 = grramp[1]
print 'gr' + '%d' % i + ' offset = %f' % ramp0
gr_ramp, xy_gr, gr = interpolate_ramp(ramppts, yoffset=ramp0)
dt_gr = numpy.amax(gr[:, 0]) - numpy.amin(gr[:, 0])
N_gr = int(math.floor(dt_gr / DL.ss))
x_gr = numpy.arange(dt_gr / N_gr, dt_gr, dt_gr / N_gr)
y_gr = gr_ramp(Xnew)
if DL.signal == 0:
y_gr = y_gr / 2.0
if v0.size > y_gr.size:
y_gr = numpy.append(y_gr, (v0.size - y_gr.size) * [y_gr[-1]])
elif v0.size < y_gr.size:
y_gr = y_gr[0:v0.size]
if v0.size != y_gr.size:
msg = "GRPOW ERROR: number of samples in GR ramp and V0 ramp does not match!"
errormsg.box('LATTICE LOADING ERROR', msg)
exit(1)
grwfms['greenpow' + '%1d' % (i + 1)] = y_gr
ax0.plot(xy_gr[:, 0],
xy_gr[:, 1],
marker=splmrkr[i],
mec='green',
mfc='None',
ms=3.)
ax0.plot(gr[:, 0],
gr[:, 1],
marker=ptsmrkr[i],
mew=xymew,
ms=xyms / 2.,
mfc='None',
mec='green') #, label='grpow dat')
ax0.plot(Xnew, y_gr, lw=lw, color='green', label='grpow')
for grch in grwfms.keys():
print grch, " = ", grwfms[grch].shape
ax0.set_xlim(left=-10., right=ax0.get_xlim()[1] * 1.1)
plt.setp(ax0.get_xticklabels(), visible=False)
ylim = ax0.get_ylim()
extra = (ylim[1] - ylim[0]) * 0.1
ax0.set_ylim(ylim[0] - extra, ylim[1] + extra)
ax0.grid(True)
ax0.set_ylabel('$E_{r}$', size=16, labelpad=0)
ax0.yaxis.set_label_coords(labelx, 0.5)
ax0.set_title('Lattice Loading')
ax0.legend(loc='best', numpoints=1, prop={'size': legsz * 0.8})
# Define how we want to ramp up the scattering length (control our losses)
a_s_ramp, xy_a_s, a_s = interpolate_ramp(DL.a_s)
dt_a_s = numpy.amax(a_s[:, 0]) - numpy.amin(a_s[:, 0])
N_a_s = int(math.floor(dt_a_s / DL.ss))
x_a_s = numpy.arange(dt_a_s / N_a_s, dt_a_s, dt_a_s / N_a_s)
y_a_s = a_s_ramp(Xnew)
if v0.size > y_a_s.size:
y_a_s = numpy.append(y_a_s, (v0.size - y_a_s.size) * [y_a_s[-1]])
elif v0.size < y_a_s.size:
y_a_s = y_a_s[0:v0.size]
if v0.size != y_a_s.size:
msg = "a_s ERROR: number of samples in a_s ramp and V0 ramp does not match!"
errormsg.box('LATTICE LOADING ERROR', msg)
exit(1)
ax1.plot(xy_a_s[:, 0], xy_a_s[:, 1] / 100., 'x', color='#C10087', ms=5.)
ax1.plot(a_s[:, 0],
a_s[:, 1] / 100.,
'.',
mew=xymew,
ms=xyms,
color='#C10087')
ax1.plot(Xnew,
y_a_s / 100.,
lw=lw,
color='#C10087',
label=r'$a_s\mathrm{(100 a_{0})}$')
ax1.set_ylabel(r'$a_s\mathrm{(100 a_{0})}$', size=16, labelpad=0)
ax1.yaxis.set_label_coords(labelx, 0.5)
ax1.set_xlim(ax0.get_xlim())
ylim = ax1.get_ylim()
extra = (ylim[1] - ylim[0]) * 0.1
ax1.set_ylim(ylim[0] - extra, ylim[1] + extra)
plt.setp(ax1.get_xticklabels(), visible=False)
ax1.grid(True)
ax1.legend(loc='best', numpoints=1, prop={'size': legsz})
#######################################################################
#### CALCULATED RAMPS: ALPHA, TUNNELING, SCATTERING LENGTH, BFIELD ###
#######################################################################
alpha = (v0 / y_ir)**2.
alpha_advance = 100.
N_adv = int(math.floor(alpha_advance / DL.ss))
alpha = alpha.clip(0., 1.)
alpha_desired = numpy.copy(alpha)
if N_adv < v0.size:
alpha = alpha[N_adv:]
alpha = numpy.append(alpha, (v0.size - alpha.size) * [alpha[-1]])
else:
alpha = numpy.array(v0.size * [alpha[-1]])
#alpha = alpha.clip(0., 1.)
ax2.plot(Xnew, alpha, lw=lw, color='saddlebrown', label='alpha adv')
ax2.plot(Xnew,
alpha_desired,
':',
lw=lw,
color='saddlebrown',
label='alpha')
ax2.set_xlim(ax0.get_xlim())
ax2.set_ylim(-0.05, 1.05)
plt.setp(ax2.get_xticklabels(), visible=False)
ax2.grid()
ax2.set_ylabel('$\\alpha$', size=16, labelpad=0)
ax2.yaxis.set_label_coords(labelx, 0.5)
ax2.legend(loc='best', numpoints=1, prop={'size': legsz})
tunneling_Er = physics.inv('t_to_V0', v0)
tunneling_kHz = tunneling_Er * 29.2
ax3.plot(Xnew, tunneling_kHz, lw=lw, color='red', label='$t$ (kHz)')
ax3.set_xlim(ax0.get_xlim())
ylim = ax3.get_ylim()
extra = (ylim[1] - ylim[0]) * 0.1
ax3.set_ylim(ylim[0] - extra, ylim[1] + extra)
plt.setp(ax3.get_xticklabels(), visible=False)
ax3.grid(True)
ax3.set_ylabel(r'$t\,\mathrm{(kHz)}$', size=16, labelpad=0)
ax3.yaxis.set_label_coords(labelx, 0.5)
ax3.legend(loc='best', numpoints=1, prop={'size': legsz})
wannierF = physics.inv('wF_to_V0', v0)
bohrRadius = 5.29e-11 #meters
lattice_spacing = 1.064e-6 / 2. #meters
bfieldG = physics.cnv('as_to_B', y_a_s)
print
print "The last value of the scattering length ramp is:"
print 'a_s =', y_a_s[-1]
print 'B =', bfieldG[-1]
print
U_over_t = y_a_s * bohrRadius / lattice_spacing * wannierF / tunneling_Er
ax4.plot(Xnew, U_over_t, lw=lw, color='k', label=r'$U/t$')
ax4.set_xlim(ax0.get_xlim())
ylim = ax4.get_ylim()
extra = (ylim[1] - ylim[0]) * 0.1
ax4.set_ylim(ylim[0] - extra, ylim[1] + extra)
plt.setp(ax4.get_xticklabels(), visible=False)
ax4.grid(True)
ax4.set_ylabel(r'$U/t$', size=16, labelpad=0)
ax4.yaxis.set_label_coords(labelx, 0.5)
ax4.legend(loc='best', numpoints=1, prop={'size': legsz})
ax5.plot(Xnew, bfieldG, lw=lw, color='purple', label='$B$ (G)')
ax5.set_xlim(ax0.get_xlim())
ylim = ax5.get_ylim()
extra = (ylim[1] - ylim[0]) * 0.1
ax5.set_ylim(ylim[0] - extra, ylim[1] + extra)
ax5.grid(True)
plt.setp(ax5.get_xticklabels(), visible=False)
ax5.set_ylabel(r'$B\,\mathrm{(G)}$', size=16, labelpad=0)
ax5.yaxis.set_label_coords(labelx, 0.5)
ax5.legend(loc='best', numpoints=1, prop={'size': legsz})
ax6.plot(Xnew, (tunneling_Er / U_over_t),
lw=lw,
color='#25D500',
label=r'$t^{2}/U\,(E_{r)}$')
#ax6.set_yscale('log')
ax6.set_xlim(ax0.get_xlim())
ylim = ax6.get_ylim()
extra = (ylim[1] - ylim[0]) * 0.1
ax6.set_ylim(ylim[0] * 0.5, ylim[1])
ax6.grid(True)
ax6.set_ylabel(r'$t^{2}/U\,(E_{r)}$', size=16, labelpad=0)
ax6.yaxis.set_label_coords(labelx, 0.5)
ax6.legend(loc='best', numpoints=1, prop={'size': legsz})
ax6.set_xlabel('time (ms)')
figfile = seqconf.seqtxtout().split('.')[0] + '_latticeRamp.png'
plt.savefig(figfile, dpi=120)
#Save all ramps to a txt file for later plotting.
datfile = seqconf.seqtxtout().split('.')[0] + '_latticeRamp.dat'
allRamps = numpy.transpose(numpy.vstack((Xnew, v0, y_ir, grwfms['greenpow1'], y_a_s, alpha, alpha_desired, \
tunneling_kHz, U_over_t, bfieldG)))
header = '# Column index'
header = header + '\n#\t0\t' + 'time(ms)'
header = header + '\n#\t1\t' + 'Lattice Depth (Er)'
header = header + '\n#\t2\t' + 'Ir power (Er)'
header = header + '\n#\t3\t' + 'GR power (Er)'
header = header + '\n#\t4\t' + 'a_s (a0)'
header = header + '\n#\t5\t' + 'alpha - advance'
header = header + '\n#\t6\t' + 'alpha - desired'
header = header + '\n#\t7\t' + 'tunneling (kHz)'
header = header + '\n#\t8\t' + 'U/t'
header = header + '\n#\t9\t' + 'bfield (Gauss)'
header = header + '\n'
numpy.savetxt(datfile, allRamps)
with open(datfile, 'w') as f:
X = numpy.asarray(allRamps)
f.write(bytes(header))
format = '%.6e'
ncol = X.shape[1]
format = [
format,
] * ncol
format = ' '.join(format)
newline = '\n'
for row in X:
f.write(numpy.compat.asbytes(format % tuple(row) + newline))
shutil.copyfile(
figfile,
seqconf.savedir() + 'expseq' + seqconf.runnumber() +
'_latticeRamp.png')
shutil.copyfile(
datfile,
seqconf.savedir() + 'expseq' + seqconf.runnumber() +
'_latticeRamp.dat')
#plt.savefig( seqconf.savedir() + 'expseq' + seqconf.runnumber() + '_latticeRamp.png', dpi=120)
#################################
#### APPEND RAMPS TO SEQUENCE ###
#################################
wfms = []
if DL.signal == 0:
print " LOCK VALUE FOR SIGNAL / NOSIGNAL "
print " before = ", DL.lock_Er
DL.lock_Er = DL.lock_Er / 1.8
print " after = \n", DL.lock_Er
for ch in ['ir1pow', 'ir2pow', 'ir3pow']:
n = filter(str.isdigit, ch)[0]
w = wfm.wave(ch, 0.0, DL.ss) #Start value will be overrriden
w.y = physics.cnv(ch, y_ir)
if DL.lock:
endval = w.y[-1]
w.insertlin_cnv(DL.lock_Er, DL.lock_dtUP, DL.lock_t0)
elif DL.lightassist_lock:
endval = w.y[-1]
w.linear(DL.lightassist_lockpowIR, DL.lightassist_lockdtUP)
w.appendhold(DL.lightassist_t0 + DL.lightassistdt)
if DL.endvalIR >= 0.:
w.linear(DL.endvalIR, DL.lightassist_lockdtDOWN)
else:
w.linear(None, DL.lightassist_lockdtDOWN, volt=endval)
wfms.append(w)
for ch in ['greenpow1', 'greenpow2', 'greenpow3']:
n = filter(str.isdigit, ch)[0]
w = wfm.wave(ch, 0.0, DL.ss) #Start value will be overrriden
correction = DIMPLE.__dict__['gr' + n + 'correct']
w.y = physics.cnv(ch, correction * grwfms[ch])
if DL.lightassist_lock:
endval = w.y[-1]
w.linear(DL.lightassist_lockpowGR, DL.lightassist_lockdtUP)
w.appendhold(DL.lightassist_t0 + DL.lightassistdt)
if DL.endvalGR >= 0.:
w.linear(DL.endvalGR, DL.lightassist_lockdtDOWN)
else:
w.linear(None, DL.lightassist_lockdtDOWN, volt=endval)
wfms.append(w)
for ch in ['lcr1', 'lcr2', 'lcr3']:
n = filter(str.isdigit, ch)[0]
w = wfm.wave(ch, 0.0, DL.ss) #Start value will be overrriden
force = DL.__dict__['force_' + ch]
if force >= 0 and force <= 1:
print "...Forcing LCR%s = %f during lattice ramp" % (n, force)
w.y = physics.cnv(ch, numpy.array(alpha.size * [force]))
elif DL.signal == 0:
print "...Forcing LCR%s = 0. so that it does NOT rotate to LATTICE" % n
w.y = physics.cnv(ch, numpy.array(alpha.size * [0.0]))
else:
w.y = physics.cnv(ch, alpha)
wfms.append(w)
bfieldA = bfieldG / 6.8
##ADD field
bfield = wfm.wave('bfield', 0.0, DL.ss)
bfield.y = physics.cnv('bfield', bfieldA)
print "The last value of the bfield voltage is =", bfield.y[-1]
print
wfms.append(bfield)
##ADD gradient field
gradient = gradient_wave('gradientfield', 0.0, DL.ss, volt=0.0)
gradient.follow(bfield)
wfms.append(gradient)
buffer = 40.
s.wait(buffer)
#~ odtpow = odt.odt_wave('odtpow', cpowend, DL.ss)
#~ if DIMPLE.odt_t0 > buffer :
#~ odtpow.appendhold( DIMPLE.odt_t0 - buffer)
#~ if DIMPLE.odt_pow < 0.:
#~ odtpow.appendhold( DIMPLE.odt_dt)
#~ else:
#~ odtpow.tanhRise( DIMPLE.odt_pow, DIMPLE.odt_dt, DIMPLE.odt_tau, DIMPLE.odt_shift)
#~ if numpy.absolute(DIMPLE.odt_pow) < 0.0001:
#~ s.wait( odtpow.dt() )
#~ s.digichg('odtttl',0)
#~ s.wait(-odtpow.dt() )
#~ wfms.append(odtpow)
# RF sweep
if DL.rf == 1:
rfmod = wfm.wave('rfmod', 0., DL.ss)
rfmod.appendhold(bfield.dt() + DL.rftime)
rfmod.linear(DL.rfvoltf, DL.rfpulsedt)
wfms.append(rfmod)
if DL.round_trip == 1:
bindex = 0 # Calculate detunings using starting field
else:
bindex = -1 # Calculate detunings using field at the end of ramps
bfieldG = physics.inv('bfield', bfield.y[bindex]) * 6.8
hfimg0 = -1. * (100.0 + 163.7 - 1.414 * bfieldG)
# Find bindex for braggkill time
bindex_BK = math.floor(-DL.braggkilltime / bfield.ss)
bfieldG_BK = physics.inv('bfield', bfield.y[-1 - bindex_BK]) * 6.8
hfimg0_BK = -1. * (100.0 + 163.7 - 1.414 * bfieldG_BK)
DL.braggkill_hfimg = hfimg0_BK - DL.braggkill_hfimg
print "\n...Braggkill hfimg modification:\n"
print "\tNEW braggkill_hfimg = %.2f MHz" % DL.braggkill_hfimg
# Find bindex for bragg2kill time
bindex_B2K = math.floor(-DL.bragg2killtime / bfield.ss)
bfieldG_B2K = physics.inv('bfield', bfield.y[-1 - bindex_B2K]) * 6.8
hfimg0_B2K = -1. * (100.0 + 163.7 - 1.414 * bfieldG_B2K)
DL.bragg2kill_hfimg1 = hfimg0_B2K - DL.bragg2kill_hfimg1
DL.bragg2kill_hfimg2 = hfimg0_B2K - DL.bragg2kill_hfimg2
print "\n...Bragg2kill hfimg modification:\n"
print "\tNEW brag2gkill_hfimg1 = %.2f MHz" % DL.bragg2kill_hfimg1
print "\tNEW brag2gkill_hfimg2 = %.2f MHz" % DL.bragg2kill_hfimg2
print "\n...ANDOR:hfimg and hfimg0 will be modified in report\n"
print "\tNEW ANDOR:hfimg = %.2f MHz" % (hfimg0 - DL.imgdet)
print "\tNEW ANDOR:hfimg0 = %.2f MHz\n" % hfimg0
gen.save_to_report('ANDOR', 'hfimg', hfimg0 - DL.imgdet)
gen.save_to_report('ANDOR', 'hfimg0', hfimg0)
newANDORhfimg = hfimg0 - DL.imgdet
# THIS DEFINES THE TIME IT TAKES THE OFFSET LOCK TO SWITCH TO
# A NEW SETPOINT
hfimgdelay = 50. #ms
# Kill hfimg
if DL.probekill == 1 or DL.braggkill == 1 or DL.bragg2kill == 1 or DL.lightassist or DL.lightassist_lock:
analogimg = wfm.wave('analogimg', newANDORhfimg, DL.ss)
if DL.probekill == 1:
if (-DL.probekilltime + hfimgdelay) < DL.image:
analogimg.appendhold(bfield.dt() + DL.probekilltime -
hfimgdelay)
analogimg.linear(DL.probekill_hfimg, 0.0)
analogimg.appendhold(hfimgdelay + DL.probekilldt + 3 * DL.ss)
elif DL.braggkill == 1:
print "Setting up analogimg for braggkill"
if (-DL.braggkilltime + hfimgdelay) < DL.image:
analogimg.appendhold(bfield.dt() + DL.braggkilltime -
hfimgdelay)
analogimg.linear(DL.braggkill_hfimg, 0.0)
analogimg.appendhold(hfimgdelay + DL.braggkilldt + 3 * DL.ss)
elif DL.bragg2kill == 1:
print "Setting up analogimg for bragg2kill"
if (-DL.bragg2killtime + hfimgdelay) < DL.image:
# This sets up the detuning for the first pulse
analogimg.appendhold(bfield.dt() + DL.bragg2killtime -
hfimgdelay)
analogimg.linear(DL.bragg2kill_hfimg1, 0.0)
analogimg.appendhold(hfimgdelay + DL.bragg2killdt + 3 * DL.ss)
# Then set up the detuning for the second pulse
analogimg.linear(DL.bragg2kill_hfimg2, 0.0)
analogimg.appendhold(hfimgdelay + DL.bragg2killdt + 3 * DL.ss)
elif DL.lightassist == 1 or DL.lightassist_lock:
analogimg.appendhold(bfield.dt() - hfimgdelay)
analogimg.linear(DL.lightassist_hfimg, 0.0)
duration = DL.lightassist_lockdtUP + DL.lightassist_t0 + DL.lightassistdt + DL.lightassist_lockdtDOWN
analogimg.appendhold(hfimgdelay + duration + 3 * DL.ss)
analogimg.linear(newANDORhfimg, 0.)
analogimg.extend(10)
wfms.append(analogimg)
#analogimg = bfieldwfm.hfimg_wave('analogimg', ANDOR.hfimg, DL.ss)
#andorhfimg0 = analogimg.follow(bfield, DL.imgdet)
#wfms.append(analogimg)
# If we are doing round trip END, then mirror all the ramps
# before adding them to the sequence
if DL.round_trip == 1:
if DL.round_trip_type == 1:
maxdt = 0.
maxi = -1
for i, w in enumerate(wfms):
if w.dt() > maxdt:
maxdt = w.dt()
maxi = i
maxdt = maxdt + DL.wait_at_top / 2.
for w in wfms:
w.extend(maxdt)
if 'lcr' in w.name:
yvals = w.y
#Get the reverse of the alpha desired array
alpha_mirror = numpy.copy(alpha_desired[::-1])
#Add the wait at top part so that it has same length as yvals
if alpha_mirror.size > yvals.size:
print "Error making mirror ramp for LCR."
print "Program will exit."
exit(1)
alpha_mirror = numpy.append(
(yvals.size - alpha_mirror.size) * [alpha_mirror[0]],
alpha_mirror)
#This is how much the mirror ramp will be advanced
N_adv = int(math.floor(DL.lcr_mirror_advance / DL.ss))
if N_adv < alpha_mirror.size:
alpha_mirror = alpha_mirror[N_adv:]
alpha_mirror = numpy.append(
alpha_mirror, (yvals.size - alpha_mirror.size) *
[alpha_mirror[-1]])
else:
alpha_mirror = numpy.array(yvals.size *
[alpha_mirror[-1]])
w.y = numpy.concatenate(
(yvals, physics.cnv(w.name, alpha_mirror)))
else:
w.mirror()
w.appendhold(DL.wait_at_end)
N_adv = int(math.floor(alpha_advance / DL.ss))
alpha_desired = numpy.copy(alpha)
for wavefm in wfms:
print "%s dt = %f" % (wavefm.name, wavefm.dt())
duration = s.analogwfm_add(DL.ss, wfms)
if DL.image < DIGEXTENSION:
s.wait(duration)
else:
print "...DL.image = %f >= %.2f Digital seq extension will be used." % (
DL.image, DIGEXTENSION)
s.wait(DL.image)
### Prepare the parts of the ramps that are going to be used to mock
### the conditions for the noatoms shot
### 1. get dt = [noatoms] ms from the end of the lattice ramps.
if 'manta' in DL.camera:
noatomsdt = MANTA.noatoms
else:
noatomsdt = ANDOR.noatoms
noatomswfms = []
for wavefm in wfms:
cp = copy.deepcopy(wavefm)
cp.idnum = time.time() * 100
cp.retain_last(DL.bgRetainDT)
noatomswfms.append(cp)
### Figure out when to turn interlock back on, using alpha information
#~ if duration > DL.t0 + DL.dt:
#~ s.wait(-DL.lattice_interlock_time)
#~ if DL.use_lattice_interlock == 1:
#~ s.digichg('latticeinterlockbypass',0)
#~ else:
#~ s.digichg('latticeinterlockbypass',1)
#~ s.wait( DL.lattice_interlock_time)
#########################################
## OTHER TTL EVENTS: probekill, braggkill, rf, quick2
#########################################
# Braggkill
if DL.braggkill == 1:
print "Using Bragg Kill"
s.wait(DL.braggkilltime)
s = manta.OpenShutterBragg(s, DL.shutterdelay)
s.digichg('bragg', 1)
s.wait(DL.braggkilldt)
s.digichg('brshutter', 1) # to close shutter
s.digichg('bragg', 0)
s.wait(-DL.braggkilldt)
s.wait(-DL.braggkilltime)
if DL.bragg2kill == 1:
print "Using Bragg 2 Kill"
tcur = s.tcur
s.wait(DL.bragg2killtime)
s = manta.OpenShutterBragg(s, DL.shutterdelay)
s.digichg('bragg', 1)
s.wait(DL.bragg2killdt)
s.digichg('brshutter', 1) # to close shutter
s.digichg('bragg', 0)
s.wait(hfimgdelay + 3 * DL.ss)
s = manta.OpenShutterBragg(s, DL.shutterdelay)
s.digichg('bragg', 1)
s.wait(DL.bragg2killdt)
s.digichg('brshutter', 1) # to close shutter
s.digichg('bragg', 0)
# Revert to current time after pulses have been added in the past
s.tcur = tcur
# Probe Kill
if DL.probekill == 1:
s.wait(DL.probekilltime)
s.wait(-10)
s.digichg('prshutter', 0)
s.wait(10)
s.digichg('probe', 1)
s.wait(DL.probekilldt)
s.digichg('probe', 0)
s.digichg('prshutter', 1)
s.wait(-DL.probekilltime)
# Pulse RF
if DL.rf == 1:
s.wait(DL.rftime)
s.digichg('rfttl', 1)
s.wait(DL.rfpulsedt)
s.digichg('rfttl', 0)
s.wait(-DL.rfpulsedt)
s.wait(-DL.rftime)
# QUICK2
if DL.quick2 == 1:
s.wait(DL.quick2time)
s.digichg('quick2', 1)
s.wait(-DL.quick2time)
# Light-assisted collisions
if DL.lightassist == 1 or DL.lightassist_lock:
s.wait(-DL.lightassist_lockdtUP - DL.lightassist_t0 -
DL.lightassistdt - DL.lightassist_lockdtDOWN - 3 * DL.ss)
s.wait(DL.lightassist_lockdtUP + DL.lightassist_t0)
s.wait(-10)
s.digichg('prshutter', 0)
s.wait(10)
s.digichg('probe', DL.lightassist)
s.wait(DL.lightassistdt)
s.digichg('probe', 0)
s.digichg('prshutter', 1)
s.wait(DL.lightassist_lockdtDOWN)
s.wait(3 * DL.ss)
# After the collisions happen we still need to wait some time
# for the probe frequency to come back to the desired value
s.wait(hfimgdelay)
#########################################
## GO BACK IN TIME IF DOING ROUND-TRIP START
#########################################
if DL.round_trip == 1:
if DL.round_trip_type == 0:
s.wait(-DL.image)
s.stop_analog()
#########################################
## TURN GREEN OFF BEFORE PICTURES
#########################################
if DL.greenoff == 1:
s.wait(DL.greenoff_t0)
s.digichg('greenttl1', 0)
s.digichg('greenttl2', 0)
s.digichg('greenttl3', 0)
s.wait(-DL.greenoff_t0)
#########################################
## LATTICE LOCK WITH POSSIBILITY OF RF
#########################################
bufferdt = 5.0
lastIR = y_ir[-1]
lockwfms = []
if DL.locksmooth == 1 and DL.lock == 0:
s.wait(bufferdt)
for ch in ['ir1pow', 'ir2pow', 'ir3pow']:
n = filter(str.isdigit, ch)[0]
w = wfm.wave(ch, lastIR,
DL.lockss) #Start value will be overrriden
w.tanhRise(DL.lock_Er, DL.lock_dtUP, 0.4, 0.2)
lockwfms.append(w)
print "...LOCKING LATTICE TO %f Er" % DL.lock_Er
print "...lastIR = %.4f" % lastIR
duration = s.analogwfm_add(DL.lockss, lockwfms)
print "...duration = %.2f" % duration
s.wait(duration)
#~ if DL.lockrf:
#~ s.digichg('rfttl',1)
#~ s.wait(DL.rfpulsedt)
#~ s.digichg('rfttl',0)
#~ s.wait(0.036)
#else:
# s.wait(bufferdt)
lockwfmscopy = []
for wavefm in lockwfms:
cp = copy.deepcopy(wavefm)
cp.idnum = time.time() * 100 + 1e3 * numpy.random.randint(0, 1e8)
lockwfmscopy.append(cp)
#########################################
## IMAGING AT LOW FIELD
#########################################
if DL.lowfieldimg == 1:
s.wait(DL.lowfieldimg_t0)
s.digichg('field', 0)
s.wait(-DL.lowfieldimg_t0)
#########################################
## TTL RELEASE FROM ODT and LATTICE
#########################################
#INDICATE WHICH CHANNELS ARE TO BE CONSIDERED FOR THE BACKGROUND
bg = [
'odtttl', 'irttl1', 'irttl2', 'irttl3', 'greenttl1', 'greenttl2',
'greenttl3'
]
bgdictPRETOF = {}
for ch in bg:
bgdictPRETOF[ch] = s.digistatus(ch)
bgdictPRETOF['tof'] = DL.tof
print "\nChannel status for pictures: PRE-TOF"
print bgdictPRETOF
print
#RELEASE FROM LATTICE
if DL.tof <= 0.:
s.wait(1.0 + ANDOR.exp)
s.digichg('greenttl1', 0)
s.digichg('greenttl2', 0)
s.digichg('greenttl3', 0)
s.digichg('irttl1', 0)
s.digichg('irttl2', 0)
s.digichg('irttl3', 0)
#RELEASE FROM IR TRAP
s.digichg('odtttl', 0)
if DL.tof <= 0.:
s.wait(-1.0 + ANDOR.exp)
print "TIME WHEN RELEASED FROM LATTICE = ", s.tcur
s.wait(DL.tof)
return s, noatomswfms, lockwfmscopy, bgdictPRETOF