98 lines
3.8 KiB
Python
Executable File
98 lines
3.8 KiB
Python
Executable File
#Parameters
|
|
'''
|
|
B1 = 10 # starting mag. field in Amps
|
|
B2 = -10 # final mag. field in Amps
|
|
BSTEP = 10 # step size mag. field in Amps
|
|
ENERGIES = (1300,1310) #list of energies in eV
|
|
MODE = 1 #polarization (CIRC+ -> 1 or CIRC- -> 2)
|
|
OFFSET1 = -9 #ID1 offset
|
|
OFFSET2 = -9.50 #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')
|
|
#cawait("X11MA-PHS:ALL-DONE",1.0)
|
|
|
|
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
|
|
caputq("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)
|
|
|
|
for E in ENERGIES:
|
|
print "Setting energy = ", E
|
|
caput(OTF_ESET, E)
|
|
wait_channel(OTF_DONE, 1, type = 'i')
|
|
readback2 = energy.read()
|
|
if abs(readback2 - E) > 0.1 : # TODO: Check accuracy
|
|
raise Exception('Energy could not be set to the value ' + str(E))
|
|
sleep( ENERGY_CHANGE_SLEEP ) # Settling time
|
|
caput("X11MA-ES1-10ADC:TRG.PROC",1) #accumulate
|
|
time.sleep(0.1) # wait a bit more
|
|
detector1 = keithley_1a.read() #Keithley1
|
|
detector2 = keithley_2a.read() #Keithley2
|
|
detector3 = keithley_3a.read() #Keithley3
|
|
detector4 = caget(OTF_MODE2) #polarization in ID2
|
|
#detector5 = caget("X11MA-ID2:ALPHA-READ") # polAngle in ID2
|
|
detector6 = caget('X11MA-ES3-LSCI:TEMP_RBV') #temperature.get()
|
|
detector7 = caget("ARIDI-PCT:CURRENT")
|
|
#detector8 = signal_field_analog_x.read() # fieldAnalogX.get()
|
|
tey_norm = detector2/detector1
|
|
tfy_norm = detector3/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
|
|
|
|
#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) |