#Parameters B1 = 10 # starting mag. field in Amps B2 = -B1 # final mag. field in Amps T1=150 # starting temperature in K T2=200 # final temperature in K TSTEP=10 # Temperature step size ENERGIES = (708.5,705) #list of energies in eV OFFSET1 = -9 #ID1 offset OFFSET2 = -8 #ID2 offset FIELD_PRECISION = 0.05 # in Amps ENERGY_CHANGE_SLEEP = 0.1 # put the Enerrgy settling time if needed FIELD_CHANGE_SLEEP = 0.1 # put the Field settling time if needed TEMP_CHANGE_SLEEP = 10.0 # put the Temperature settling time if needed ACC_TIME = 150.0 # accumulation time s # List of scans. STEPS =frange(T1, T2, TSTEP, True) #Pre-actions # Here 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) 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) # 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','Temperature'], ['I0', 'TEY', 'TFY', 'polarization', 'temperature', 'RingCurrent', 'tey_norm','tfy_norm'] , [min([B1,B2]), min(ENERGIES),min(STEPS)], [max([B1,B2]), max(ENERGIES),max(STEPS)], [1, len(ENERGIES)-1, len(STEPS)-1]) scan.start() # Main loop for T in STEPS: # set Temperature caputq(OTF_MODE2,1) # already set the polarization caput("X11MA-XMCD:I-SETraw",B1)# warm in B1 caput('X11MA-ES3-LSCI:TEMP.VAL',T) # while not caget('X11MA-ES3-LSCI:TEMP-STAT'): #time.sleep(5) time.sleep( TEMP_CHANGE_SLEEP ) # Settling time #Mode loop: for MODE in [1,2]: #polarization (CIRC+ -> 1 or CIRC- -> 2) caput(OTF_MODE2,MODE) #Field loop for B in [B1,B2]: 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 readback3=caget('X11MA-ES3-LSCI:TEMP_RBV') # read temperature #scan.append ([B, E], [readback1, readback2], [detector1, detector2, detector4, detector6, detector7, tey_norm]) scan.append ([B, E, T], [readback1, readback2, readback3], [detector1, detector2, detector3, detector4, detector6, detector7, tey_norm, tfy_norm]) scan.end() caput("X11MA-ES1-10ADC:AVG",1) print "Wake up its done" print("Success")