diff --git a/script/field_sweepID2_Jaianth.py b/script/field_sweepID2_Jaianth.py new file mode 100644 index 0000000..b42efc9 --- /dev/null +++ b/script/field_sweepID2_Jaianth.py @@ -0,0 +1,113 @@ +#Parameters + +B1 = 14 # starting mag. field in Amps +B2 = -14# final mag. field in Amps +BSTEP = 0.2 # step size mag. field in Amps +ENERGIES = (770.0, 779.3) #list of energies in eV +MODE = 1 #polarization (CIRC+ -> 1 or CIRC- -> 2) +OFFSET1 = -1.90 #ID1 offset +OFFSET2 = -1.90 #ID2 offset +FIELD_PRECISION = 0.05 # in Amps +ENERGY_CHANGE_SLEEP = 0.0 # put the Enerrgy settling time if needed +FIELD_CHANGE_SLEEP = 0.0 # put the Field settling time if needed +ACC_TIME = 1.0 # accumulation time + +# List of scans. Each scan is defined as: (start,stop, step) +# to make a whole loop two scans are needed: [(B1, B2, BSTEP),(B2,B1,-BSTEP)] +# to make half of a loop one scan is needed: [(B1, B2, BSTEP),] <- don't forget to put comma before ] +RANGES = [(B1, B2, -BSTEP),(B2,B1,BSTEP)] + + +#Pre-actions +# Here polarization and offsets are set + +caput ("X11PHS-E:OPT","PGM+ID2") +#caput(OTF_OFF1,-50) #detune ID1 +caput(OTF_OFF2,OFFSET2) +wait_channel(OTF_DONE, 1, type = 'i') + +if MODE is 1 or 2: + caput(OTF_MODE2,MODE) +else: + raise Exception("Invalid polarization type: " + MODE) + +wait_channel(OTF_DONE, 1, type = 'i') + + +# setting number of samples to be averaged, which depends on the accumulation time +avg = ACC_TIME * 10 +caput("X11MA-ES1-10ADC:AVG",avg) + +# Generating a list of mag. fields (setpoints) needed for the loop +setpoints = [] +for r in RANGES: + setpoints = setpoints + frange(r[0], r[1], r[2], True) + +# plot properties +set_preference(Preference.ENABLED_PLOTS, ['field', 'tey_norm']) +set_preference(Preference.PLOT_TYPES, {'tey_norm':1}) + +#scan = ManualScan(['field', 'Energy'], ['TEY', 'I0', 'polarization', 'temperature', 'RingCurrent', 'tey_norm'] , [min(setpoints), min(ENERGIES)], [max(setpoints), max(ENERGIES)], [len(setpoints)-1, len(ENERGIES)-1]) +scan = ManualScan(['field', 'Energy'], ['I0', 'TEY', 'TFY', 'polarization', 'temperature', 'RingCurrent', 'tey_norm','tfy_norm'] , [min(setpoints), min(ENERGIES)], [max(setpoints), max(ENERGIES)], [len(setpoints)-1, len(ENERGIES)-1]) +scan.start() + +# Main loop +for B in setpoints: + print "Setting field = ", B + caput("X11MA-XMCD:I-SETraw",B) + time.sleep( FIELD_CHANGE_SLEEP ) # Settling time + + #readback1 = caget("X11MA-XMCD:Ireadout") + + #while abs(readback1-B) > FIELD_PRECISION: + # readback1 = caget("X11MA-XMCD:Ireadout") + # time.sleep(0.5) + + + #edge + print "Setting energy = ", E[0] + caput(OTF_ESET, E[0]) + wait_channel(OTF_DONE, 1, type = 'i') + readback2 = energy.read() + if abs(readback2 - E[0]) > 0.1 : # TODO: Check accuracy + raise Exception('Energy could not be set to the value ' + str(E(0))) + sleep( ENERGY_CHANGE_SLEEP ) # Settling time + + detector1 = keithley_1a.read() #Keithley1 + detector2 = keithley_2a.read() #Keithley2 + detector4 = caget(OTF_MODE2) #polarization in ID2 + M1 = detector2/detector1 + #converting polarization strings to integer numbers: C+ -> 1 and C- -> 2 + if detector4 == 'CIRC +': detector4 = 1 + elif detector4 == 'CIRC -': detector4 = 2 + else: detector4 = 0 + + + #preedge + print "Setting energy = ", E[1] + caput(OTF_ESET, E[1]) + wait_channel(OTF_DONE, 1, type = 'i') + readback2 = energy.read() + if abs(readback2 - E[1]) > 0.1 : # TODO: Check accuracy + raise Exception('Energy could not be set to the value ' + str(E[0])) + sleep( ENERGY_CHANGE_SLEEP ) # Settling time + + detector1 = keithley_1a.read() #Keithley1 + detector2 = keithley_2a.read() #Keithley2 + detector4 = caget(OTF_MODE2) #polarization in ID2 + M2 = detector2/detector1 + #converting polarization strings to integer numbers: C+ -> 1 and C- -> 2 + if detector4 == 'CIRC +': detector4 = 1 + elif detector4 == 'CIRC -': detector4 = 2 + else: detector4 = 0 + + tey_norm = M2/M1; + + #scan.append ([B, E], [readback1, readback2], [detector1, detector2, detector4, detector6, detector7, tey_norm]) + scan.append ([B, E], [readback1, readback2], [detector1, detector2, detector3, detector4, detector6, detector7, tey_norm, tfy_norm]) + +scan.end() +caput("X11MA-ES1-10ADC:AVG",1) +caput("X11MA-XMCD:I-SETraw",0) + +close_vg13() \ No newline at end of file