69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
"""
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Flying hologram scan (experimental)
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Arguments:
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THETA_RANGE (tuple (min, max))
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PHI_RANGE (tuple (min, max))
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THETA_STEP (scalar)
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PHI_STEP (scalar)
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ZIGZAG (BOOLEAN)
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LATENCY (float) in seconds
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SENSORS (list of devices)
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"""
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import traceback
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THETA_RANGE = (-9.0, 81.0)
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THETA_STEP = 1.0
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PHI_RANGE = (-40.0, +40.0)
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#PHI_RANGE = (-160.0, +160.0)
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PHI_STEP = 40.0
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LATENCY = 0.0
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ZIGZAG = True
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ENDSCAN = True
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MOTORS = (ManipulatorTheta)
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#SENSORS = (Counts, Scienta.spectrum, SampleCurrent, RefCurrent, MachineCurrent)
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SENSORS = (Counts, Scienta.dataMatrix, SampleCurrent, RefCurrent, MachineCurrent)
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#set_preference(Preference.ENABLED_PLOTS, [ManipulatorPhi, ManipulatorTheta, Scienta.dataMatrix, ImageIntegrator])
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#set_preference(Preference.PLOT_TYPES,{'ImageIntegrator':1})
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adjust_sensors()
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set_adc_averaging()
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set_preference(Preference.PLOT_TYPES, {'Scienta spectrum':1})
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# time per scienta acquisition in seconds
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time1 = time.time()
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trig_scienta()
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time2 = time.time()
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scienta_time = (time2 - time1) # + 1.0
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print "scienta_time: ", scienta_time
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# time for one theta scan in seconds
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THETA_NSTEPS = int((THETA_RANGE[1] - THETA_RANGE[0]) / THETA_STEP) + 1
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theta_time = scienta_time * THETA_NSTEPS
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print "theta_time: ", theta_time
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PHI_NSTEPS = int((PHI_RANGE[1] - PHI_RANGE[0]) / PHI_STEP) + 1
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phi_positions = [PHI_RANGE[0] + PHI_STEP * i for i in range(PHI_NSTEPS)]
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print "phi_positions: ", phi_positions
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try:
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for phi in phi_positions:
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ManipulatorPhi.write(phi)
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print "phi = ", phi
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ManipulatorPhi.waitValueInRange(phi, 1.0, 100)
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#try:
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#check_positions = False makes scan not to abort if cannot keep time base: can get less points
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cscan(MOTORS, SENSORS, THETA_RANGE[0], THETA_RANGE[1], THETA_NSTEPS - 1, time=theta_time, before_read=before_readout, after_read = after_readout, check_positions = False)
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#except ContinuousScanFollowingErrorException:
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# print time.time(), " cscan: exception at (theta, phi) = ({th}, {ph})".format(th=ManipulatorTheta.read(), ph=phi)
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if ZIGZAG:
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THETA_RANGE = (THETA_RANGE[1], THETA_RANGE[0])
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except:
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traceback.print_exc()
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finally:
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if ENDSCAN:
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after_scan()
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