Startup

devices/ManipulatorCoolFlowSet.properties

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+#Tue Apr 21 19:08:28 CEST 2020
+minValue=0.0
+unit=%
+offset=0.0
+maxValue=0.0
+rotation=false
+precision=1
+sign_bit=0
+scale=1.0
+resolution=NaN

devices/ManipulatorTempA.properties

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+#Tue Apr 21 19:08:28 CEST 2020
+minValue=0.0
+unit=K
+offset=0.0
+maxValue=0.0
+rotation=false
+precision=2
+sign_bit=0
+scale=1.0
+resolution=NaN

script/users/monney/TemperatureRamp.py

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+
+POSITIONERS = [dummy, ManipulatorCoolFlowSet]
+RELATIVE = False
+SENSORS = (Counts, SampleCurrent, RefCurrent, MachineCurrent, EnergyDistribution, AngleDistribution, Scienta.dataMatrix, ManipulatorTempA, ManipulatorTempB, ManipulatorCoolFlow)
+LATENCY = 0.0
+
+adjust_sensors()
+set_adc_averaging()
+set_exec_pars(compression=True)
+set_preference(Preference.PLOT_TYPES, {'Scienta spectrum':1})
+
+
+def set_4f():
+    Eph.move(200.)
+    Scienta.setAcquisitionMode(ch.psi.pshell.epics.Scienta.AcquisitionMode.Swept)
+    Scienta.lowEnergy.write(130.5)
+    Scienta.highEnergy.write(137.0)
+    Scienta.stepSize.write(0.01)
+    Scienta.setPassEnergy(int(50))
+    Scienta.stepTime.write(0.0588)
+    Scienta.setIterations(1)
+    ExitSlit.write(200.)
+    Scienta.update()
+
+def set_survey():
+    Eph.move(1500.)
+    Scienta.setAcquisitionMode(ch.psi.pshell.epics.Scienta.AcquisitionMode.Swept)
+    Scienta.lowEnergy.write(800.)
+    Scienta.highEnergy.write(1500.)
+    Scienta.stepSize.write(0.1)
+    Scienta.setPassEnergy(int(50))
+    Scienta.stepTime.write(0.0588)
+    Scienta.setIterations(1)
+    ExitSlit.write(200.)
+    Scienta.update()
+
+
+try:
+    set_survey()
+    lscan(POSITIONERS, SENSORS, (1., 10.), (1., 10.), 1, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
+
+    set_4f()
+    lscan(POSITIONERS, SENSORS, (300., 15.), (10., 40.), 150, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
+
+    set_survey()
+    lscan(POSITIONERS, SENSORS, (1., 40.), (1., 40.), 1, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
+
+    set_4f()
+    lscan(POSITIONERS, SENSORS, (10., 20.), (300., 0.), 150, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
+
+    set_survey()
+    lscan(POSITIONERS, SENSORS, (1., 0.), (1., 0.), 1, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
+
+finally:
+    if ENDSCAN:
+        after_scan()    

script/users/monney/TemperatureRampMultiRegion.py

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+"""
+discrete temperature ramp
+
+positioners:
+ManipulatorTempA - cryostat temperature (lakeshore)
+ManipulatorCoolFlowSet - flow controller. range 0-40
+
+
+special notes:
+- tstep will be rounded to a multiple of 0.0588 s.
+- front-end and analyser slit cannot be set by the script
+
+"""
+
+MOTORS = [ManipulatorTempA, ManipulatorCoolFlowSet]
+MOTORS = [dummy]
+
+POSITIONS_TEMP = [300., 280., 270., 260., 250., 240., 220., 200., 190., 175., 165., 150., 130., 110., 90., 70., 50., 30., 60., 80., 100., 110., 120., 150., 170., 190., 210., 230., 250., 260., 270., 280., 290.]
+POSITIONS_FLOW = [  0.,  40.,  40.,  40.,  40.,  40.,  40.,  40.,  40.,  40.,  40.,  40.,  40.,  40., 40., 40., 40., 40., 10., 10.,  10.,  10.,  10.,  10.,  10.,  10.,   0.,   0.,   0.,   0.,   0.,   0.,   0.]
+POSITIONS_SURVEY = [300., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 30., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.]
+
+SCAN = 'vscan'
+
+# seconds to wait between positioning command and triggering the detector
+LATENCY = 30.0
+
+
+# region setup
+#
+# for each region, define a python dictionary with the following items.
+# optional items can be left unspecified and will default to the indicated values.
+# for swept mode, include 'elo', 'ehi', 'estep', 'iter' values, but do not include 'efix'.
+# for fixed mode, include 'efix' value, but do not include 'elo', 'ehi', 'estep', 'iter'.
+#
+# 'name': user-specific name of the region (for graph title and RegionName attribute in data file)
+# 'elo': lower kinetic energy boundary of the spectrum
+# 'ehi': upper kinetic energy boundary of the spectrum
+# 'estep': energy step size
+# 'efix': center kinetic energy in fixed mode
+# 'epass': pass energy
+# 'ephot': photon energy (default: unchanged)
+# 'tstep': dwell time in seconds
+# 'iter': number of iterations/sweeps (default 1)
+# 'cis': True = constant initial state (photoemission line), False = constant final state (Auger peak), (default False)
+# 'slit': exit slit (default: unchanged)
+
+REGION1 = {'name': 'survey', 'front': '5x8', 'slit': 200., 'ephot': 1500., 'epass': 50., 'aslit': 700, 'elo': 800., 'ehi': 1500., 'estep': 0.1, 'tstep': 0.0588, 'iter': 1, 'cis': False}
+REGION2 = {'name': 'Ir 4f', 'front': '4x6', 'slit': 200., 'ephot': 200., 'epass': 50., 'aslit': 600, 'elo': 130.5, 'ehi': 137., 'estep': 0.01, 'tstep': 0.0588, 'iter': 1, 'cis': False}
+
+# list of region dictionaries to execute at each scan position
+REGIONS = [REGION1, REGION2]
+
+# close beam shutter and turn off analyser at the end of the scan
+CLOSE_SHUTTER_AT_END = True
+
+
+# --- DO NOT EDIT BELOW THIS LINE! ---
+
+set_exec_pars(keep=False)
+
+def check_region(region):
+    """
+    check region dictionary items and apply defaults where necessary
+    """
+    region['fixed'] = 'efix' in region
+    if region['fixed']:
+        region['elo'] = region['efix']
+        region['ehi'] = region['efix']
+    if 'iter' not in region:
+        region['iter'] = 1
+        print("region {0}: setting default iter = {1}".format(region['name'], region['iter']))
+    if 'cis' not in region:
+        region['cis'] = False
+        print("region {0}: setting default cis = {1}".format(region['name'], region['cis']))
+        
+class SpectrumReader(ReadonlyRegisterBase, ReadonlyRegisterArray):
+    def initialize(self):
+        #super(SpectrumReader, self).initialize()
+        self.scan_index = -1
+
+    def create_datasets(self):
+        path = get_exec_pars().scanPath + self.region_name + "/"
+
+        if self.region['fixed']:
+            self.channel_center_dataset_name = path + "ScientaChannelCenter"
+            create_dataset(self.channel_center_dataset_name, 'd')
+        else:
+            self.channel_begin_dataset_name = path + "ScientaChannelBegin"
+            self.channel_end_dataset_name = path + "ScientaChannelEnd"
+            self.step_energy_dataset_name = path + "ScientaStepEnergy"
+            create_dataset(self.channel_begin_dataset_name, 'd')
+            create_dataset(self.channel_end_dataset_name, 'd')
+            create_dataset(self.step_energy_dataset_name, 'd')
+
+        if 'epass' in self.region:
+            self.pass_energy_dataset_name = path + "ScientaPassEnergy"
+            create_dataset(self.pass_energy_dataset_name, 'd')
+        if 'tstep' in self.region:
+            self.step_time_dataset_name = path + "ScientaStepTime"
+            create_dataset(self.step_time_dataset_name, 'd')
+        if 'iter' in self.region:
+            self.iterations_dataset_name = path + "ScientaIterations"
+            create_dataset(self.iterations_dataset_name, 'd')
+        if 'slit' in self.region:
+            self.slit_dataset_name = path + "ExitSlit"
+            create_dataset(self.slit_dataset_name, 'd')
+        
+    def setup(self):
+        # print("spectrum.setup")
+        
+        if self.scan_index != get_exec_pars().index:
+            self.scan_index = get_exec_pars().index
+            self.create_datasets()
+            if self.region_index == 0:
+                print "scan {0}".format(self.scan_index)
+
+    def setpos(self):
+        """
+        set region positioners
+        """
+        edelta = 0.0
+        try:
+            ephot = self.region['ephot']
+            Eph.move(ephot)
+        except KeyError:
+            ephot = Eph.take(100)
+
+        if isinstance(ephot, float) and ephot > 0.:
+            try:
+                if self.region['cis']:
+                    edelta = ephot - self.ephot_start
+            except AttributeError:
+                self.ephot_start = ephot
+
+        elo = self.region['elo'] + edelta
+        ehi = self.region['ehi'] + edelta
+
+        if self.region['fixed']:
+            Scienta.setAcquisitionMode(ch.psi.pshell.epics.Scienta.AcquisitionMode.Fixed)
+            Scienta.centerEnergy.write(elo)
+            append_dataset(self.channel_center_dataset_name, elo)
+        else:
+            Scienta.setAcquisitionMode(ch.psi.pshell.epics.Scienta.AcquisitionMode.Swept)
+            Scienta.lowEnergy.write(elo)
+            Scienta.highEnergy.write(ehi)
+            Scienta.stepSize.write(self.region['estep'])
+            append_dataset(self.channel_begin_dataset_name, elo)
+            append_dataset(self.channel_end_dataset_name, ehi)
+            append_dataset(self.step_energy_dataset_name, self.region['estep'])
+
+        try:
+            Scienta.setPassEnergy(int(self.region['epass']))
+            append_dataset(self.pass_energy_dataset_name, self.region['epass'])
+        except KeyError:
+            pass
+
+        try:
+            Scienta.stepTime.write(self.region['tstep'])
+            append_dataset(self.step_time_dataset_name, self.region['tstep'])
+        except KeyError:
+            pass
+
+        try:
+            Scienta.setIterations(self.region['iter'])
+            append_dataset(self.iterations_dataset_name, self.region['iter'])
+        except KeyError:
+            pass
+
+        try:
+            ExitSlit.write(self.region['slit'])
+            append_dataset(self.slit_dataset_name, self.region['slit'])
+        except KeyError:
+            pass
+            
+        Scienta.update()
+        
+    def read(self):
+        # print("spectrum.read")
+        global current_region_index
+        current_region_index = self.region_index
+        self.setup()
+        self.setpos()
+        print("Acquiring region {0}.".format(self.region['name']))
+        trig_scienta()
+        time.sleep(0.5)
+        sp = Scienta.getSpectrum().read()
+        return sp
+
+    def getSize(self):
+        if self.region['fixed']:
+            nx = 992
+        else:
+            nx = int((self.region['ehi'] - self.region['elo']) / self.region['estep']) + 1
+        return nx
+
+
+class ImageReader(ReadonlyRegisterBase, ReadonlyRegisterMatrix):   
+    def read(self):
+        # print("image.read")
+        return Scienta.getDataMatrix().read()
+
+    def getWidth(self):
+        if self.region['fixed']:
+            nx = 992
+        else:
+            nx = int((self.region['ehi'] - self.region['elo']) / self.region['estep']) + 1
+        return nx
+
+    def getHeight(self):
+        ny = Scienta.slices.read()
+        return ny
+
+def setup_live_plots(regions):
+    global live_plots
+    global current_region_index
+    names = [region['name'] for region in regions]
+    live_plots = plot(None, names, title="Live Spectra")
+    current_region_index = 0
+
+def update_live_plots():
+    global live_plots
+    global current_region_index
+    try:
+        while get_context().state.running:
+            y = Scienta.spectrum.take(100)
+            x = Scienta.spectrumX
+            try:
+                series = live_plots[current_region_index].getSeries(0)
+                series.setData(x, y)        
+            except IndexError:
+                pass
+            time.sleep(1.0)
+    finally:
+        print "Stopping live spectra"
+
+def do_scan(scan, motors, positions, regions, latency):
+    global SENSORS
+    
+    SENSORS = []
+    
+    for (index, region) in enumerate(regions):
+        check_region(region)
+        
+        reader = SpectrumReader()
+        reader.region_index = index
+        reader.region_name = "region{0}".format(index + 1)
+        reader.region = region
+        reader.initialize()
+        set_device_alias(reader, reader.region_name + "/ScientaSpectrum")
+        SENSORS.append(reader)
+
+        image = ImageReader()
+        image.region_index = index
+        image.region = region
+        image.initialize()
+        set_device_alias(image, reader.region_name + "/ScientaImage")
+        SENSORS.append(image)
+
+    SENSORS.append(SampleCurrent)
+    SENSORS.append(RefCurrent)
+    adjust_sensors()
+    set_adc_averaging()
+
+    if scan == 'ascan':
+        ascan(motors, SENSORS, positions[0], positions[1], positions[2], latency, False, zigzag = True, before_read=wait_beam, after_read = after_readout)
+    elif scan == 'lscan':
+        lscan(motors, SENSORS, positions[0], positions[1], positions[2], latency, False, before_read=wait_beam, after_read = after_readout)
+    elif scan == 'vscan':
+        vscan(motors, SENSORS, positions, True, latency,False, before_read=wait_beam, after_read = after_readout)
+    else:
+        print('unknown scan mode {}'.format(scan))
+
+    for (index, region) in enumerate(regions):
+        set_attribute(get_exec_pars().scanPath + "region{0}/ScientaSpectrum".format(index + 1), "RegionName", region['name'])
+        set_attribute(get_exec_pars().scanPath + "region{0}/ScientaImage".format(index + 1), "RegionName", region['name'])
+    set_attribute(get_exec_pars().scanPath, "Regions", [region['name'] for region in regions])
+
+try:
+    setup_live_plots(REGIONS)
+    task = fork(update_live_plots)
+    do_scan(SCAN, MOTORS, POSITIONS, REGIONS, LATENCY)
+finally:
+    if CLOSE_SHUTTER_AT_END:
+        after_scan()
+