141 lines
3.7 KiB
Python
141 lines
3.7 KiB
Python
"""
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Example Parameters
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ROUNDS = 1
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E1 = 634
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E2 = 665
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TIME = 2
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DELAY = 3
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PLOT_TYPE = 1
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OFFSET1 = -2.0 #eV
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OFFSET2 = -2.9 #eV
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RUNTYPE = "+/-"
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"""
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print "\nStarting energy scan - Parameters: ",
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print E1,E2,TIME,ROUNDS,RUNTYPE
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run("utils")
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polswitch = 1
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##################### Setting filenames #######################################
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file_prefix = time.strftime("%Y%m%d")
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fid = get_next_fid(input_path, "o" + file_prefix)
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sep = "\t"
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line_sep = "\r\n"
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# CHANGE THE PATH IN THE OTF
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input_path = PATH
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output_path = input_path
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###############################################################################
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#Prepare scan
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###############################################################################
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caput ("X11PHS-E:OPT","PGM+ID1+ID2")
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if RUNTYPE in ["+/-", "+", "-"]:
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caput(ID1_MODE,1) # circ + in ID1
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caput(ID2_MODE,2) # circ - in ID2
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wait_channel(ALL_DONE, 1, type = 'i')
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if RUNTYPE == "+/-":
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number_of_scans = 2 * ROUNDS
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else:
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number_of_scans = ROUNDS
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elif RUNTYPE in ["LH/LV", "LH", "LV"]:
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caput(ID1_MODE,0)
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caput(ID2_MODE,0)
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wait_channel(ALL_DONE, 1, type = 'i')
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caput(ID1_ALPHA, 0.0) # LH in ID1
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caput(ID2_ALPHA, 90.0) # LV in ID2
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wait_channel(ALL_DONE, 1, type = 'i')
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if RUNTYPE == "LH/LV":
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number_of_scans = 2 * ROUNDS
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else:
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number_of_scans = ROUNDS
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else:
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raise Exception("Invalid run type: " + RUNTYPE)
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if RUNTYPE in ["-", "LV"]:
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switchpol(2, RUNTYPE) # tune ID2 --> polarization: C- or LV
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polswitch = 0
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elif RUNTYPE in ["+/-", "+", "LH/LV", "LH"]:
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switchpol(1, RUNTYPE) # tune ID1 --> polarization: C+ or LH
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time.sleep(1.0)
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wait_channel(ALL_DONE, 1, type = 'i')
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open_vg10()
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time.sleep(0.5)
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open_vg11()
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time.sleep(0.5)
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open_vg12()
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time.sleep(0.5)
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open_vg13()
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###############################################################################
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#Main scan loop
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###############################################################################
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for scan_no in range(number_of_scans):
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suffix = ("%03d" % fid)
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input_file = input_path + "o" + file_prefix + "_" + suffix + ".dat"
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caput(OTF_E1, E1)
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caput(OTF_E2, E2)
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caput(OTF_TIME, TIME)
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caput(OTF_FTS,file_prefix)
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caput(OTF_FID,fid)
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caput(ENERGY_SP, E1)
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wait_channel(ALL_DONE, 1, type = 'i')
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time.sleep(DELAY)
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startPlot(PLOT_TYPE)
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otf_start.write(1)
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time.sleep(1.0)
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print "Running scan " + str(scan_no+1) + " out of " + str(number_of_scans)
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try:
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otf_start.waitValue(0, (15 + int(TIME*60)) *1000)
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except:
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print "******** OTF STOP TIMEOUT **********"
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otf_start.write(0)
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finally:
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stopPlot()
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time.sleep(1.0)
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#Convert file
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output_file = output_path + "os" + file_prefix + "_" + suffix + ".dat"
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print("Converting data file: " + output_file);
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convert_file(input_file, output_file)
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plot_file(output_file, file_prefix+"_" + suffix) #"comment to supress plot
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print "Finished scan " + str(scan_no+1) + " out of " + str(number_of_scans) + " with polarisation: " + get_pol_str()
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if RUNTYPE in ["+/-", "LH/LV"]:
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if polswitch == 1:
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switchpol(2, RUNTYPE) # tune ID2 --> polarization: C- or LV
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polswitch = 0
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else:
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polswitch = 1
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switchpol(1, RUNTYPE) # tune ID1 --> polarization: C+ or LH
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else:
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print "running in one polarization mode, no switching"
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time.sleep(3.0)
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fid = fid + 1
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###############################################################################
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#Finishing scan
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###############################################################################
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caput(ENERGY_SP, E1)
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close_vg13()
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print "Successfully Finished Energy scan"
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