def __get_initial_profiles(
self) -> typing.List[scan_base.ScanFrameParameters]:
profiles = list()
# profiles.append(scan_base.ScanFrameParameters({"size": (512, 512), "pixel_time_us": 0.2}))
# profiles.append(scan_base.ScanFrameParameters({"size": (1024, 1024), "pixel_time_us": 0.2}))
# profiles.append(scan_base.ScanFrameParameters({"size": (2048, 2048), "pixel_time_us": 2.5}))
profiles.append(
scan_base.ScanFrameParameters({
"size": (256, 256),
"pixel_time_us":
1,
"fov_nm":
self.__instrument.stage_size_nm * 0.1
}))
profiles.append(
scan_base.ScanFrameParameters({
"size": (512, 512),
"pixel_time_us":
1,
"fov_nm":
self.__instrument.stage_size_nm * 0.4
}))
profiles.append(
scan_base.ScanFrameParameters({
"size": (1024, 1024),
"pixel_time_us":
1,
"fov_nm":
self.__instrument.stage_size_nm * 1.0
}))
return profiles
def __init__(self):
# these are required to register the device
self.scan_device_id = "orsay_scan_device"
self.scan_device_name = _("Orsay Scan")
self.stem_controller_id = AUTOSTEM_CONTROLLER_ID
self.__is_scanning = False
self.on_device_state_changed = None
self.flyback_pixels = 0
self.__frame_number = 0
self.__scan_size = [512, 512]
self.__sizez = 2
self.orsayscan = orsayScan(1)
self.spimscan = orsayScan(2, self.orsayscan.orsayscan)
#list all inputs
totalinputs = self.orsayscan.getInputsCount()
self.dinputs = dict()
for index in range(totalinputs):
prop = self.orsayscan.getInputProperties(index)
self.dinputs[index] = [prop, False]
self.usedinputs = [[0, False, self.dinputs[0][0]], [1, False, self.dinputs[1][0]], [6, False, self.dinputs[6][0]], [7, False, self.dinputs[7][0]]]
self.orsayscan.SetInputs([1, 0])
__inputs = self.orsayscan.GetInputs()
for inp in __inputs[1]:
for k in self.usedinputs:
if k[0] == inp:
k[1] = True
#
# Add eels camera if there
#
self.__eelscamera = HardwareSource.HardwareSourceManager().get_hardware_source_for_hardware_source_id("orsay_camera_kuro")
self.usedinputs.append([100, False, [0, 0, "eels", 100]])
channels = list(self.usedinputs[ch][1] for ch in range(len(self.usedinputs)))
self.__cameras_parsed = False
self.__profiles = list()
self.__profiles.append(scan_base.ScanFrameParameters({"size": (512, 512), "pixel_time_us": 0.2, "channels":channels}))
self.__profiles.append(scan_base.ScanFrameParameters({"size": (1024, 1024), "pixel_time_us": 0.2, "channels":channels}))
self.__profiles.append(scan_base.ScanFrameParameters({"size": (64, 64), "pixel_time_us": 1000, "channels":channels}))
self.__profiles.append(scan_base.ScanFrameParameters({"size": (2048, 2048), "pixel_time_us": 2.5, "channels":channels}))
self.__frame_parameters = copy.deepcopy(self.__profiles[0])
self.imagedata = numpy.empty((self.__sizez * self.__scan_size[1], self.__scan_size[0]), dtype = numpy.int16)
self.imagedata_ptr = self.imagedata.ctypes.data_as(ctypes.c_void_p)
self.has_data_event = threading.Event()
self.fnlock = LOCKERFUNC(self.__data_locker)
self.orsayscan.registerLocker(self.fnlock)
self.fnunlock = UNLOCKERFUNCA(self.__data_unlockerA)
self.orsayscan.registerUnlockerA(self.fnunlock)
self.orsayscan.pixelTime = 0.000002
# set the scan scale to 5v to match SuperScan, which output bank, then one for each direction
self.orsayscan.setScanScale(0, 5.0, 5.0)
#for channel_index in range(self.channel_count):
# self.set_channel_enabled(channel_index, channels_enabled[channel_index])
print(f"OrsayScan Version: {self.orsayscan._major}")
self.__angle = 0
def test_eels_data_is_consistent_when_energy_offset_changes(self):
instrument = InstrumentDevice.Instrument("usim_stem_controller")
instrument.get_scan_data(
scan_base.ScanFrameParameters({
"size": (256, 256),
"pixel_time_us": 1,
"fov_nm": 10
}), 0)
instrument.validate_probe_position()
camera = instrument._get_camera_simulator("eels")
camera_size = camera._camera_shape
camera.noise.enabled = False
readout_area = Geometry.IntRect(origin=Geometry.IntPoint(),
size=camera_size)
binning_shape = Geometry.IntSize(1, 1)
# get the value at 200eV and ZLP offset of 0
instrument.ZLPoffset = 0
d = xd.sum(instrument.get_camera_data("eels", readout_area,
binning_shape, 0.01),
axis=0)
index200_0 = int(
d.dimensional_calibrations[-1].convert_from_calibrated_value(200))
value200_0 = d.data[index200_0]
# get the value at 200eV and ZLP offset of 100
instrument.ZLPoffset = 100
d = xd.sum(instrument.get_camera_data("eels", readout_area,
binning_shape, 0.01),
axis=0)
index200_100 = int(
d.dimensional_calibrations[-1].convert_from_calibrated_value(200))
value200_100 = d.data[index200_100]
self.assertEqual(int(value200_0 / 100), int(value200_100 / 100))
def test_eels_data_camera_current_is_consistent(self):
instrument = InstrumentDevice.Instrument("usim_stem_controller")
# set up the scan context; these are here temporarily until the scan context architecture is fully implemented
instrument._update_scan_context(Geometry.IntSize(256, 256),
Geometry.FloatPoint(), 10, 0.0)
instrument._set_scan_context_probe_position(
instrument.scan_context, Geometry.FloatPoint(0.5, 0.5))
# grab scan data
instrument.get_scan_data(
scan_base.ScanFrameParameters({
"size": (256, 256),
"pixel_time_us": 1,
"fov_nm": 10
}), 0)
instrument.validate_probe_position()
camera = instrument._get_camera_simulator("eels")
camera_size = camera._camera_shape
camera.noise.enabled = False
readout_area = Geometry.IntRect(origin=Geometry.IntPoint(),
size=camera_size)
binning_shape = Geometry.IntSize(1, 1)
# get the value at 200eV and ZLP offset of 0
instrument.ZLPoffset = -20
exposure_s = 0.01
d = xd.sum(instrument.get_camera_data("eels", readout_area,
binning_shape, exposure_s),
axis=0).data
# confirm it is a reasonable value
camera_current_pA = numpy.sum(
d) / exposure_s / instrument.counts_per_electron / 6.242e18 * 1e12
# print(f"current {camera_current_pA :#.2f}pA")
self.assertTrue(190 < camera_current_pA < 210)
def test_eels_data_thickness_is_consistent(self):
instrument = InstrumentDevice.Instrument("usim_stem_controller")
# use the flake sample
instrument.sample_index = 0
# set up the scan context; these are here temporarily until the scan context architecture is fully implemented
instrument._update_scan_context(Geometry.IntSize(256, 256),
Geometry.FloatPoint(), 10, 0.0)
instrument._set_scan_context_probe_position(
instrument.scan_context, Geometry.FloatPoint(0.5, 0.5))
# grab scan data
instrument.get_scan_data(
scan_base.ScanFrameParameters({
"size": (256, 256),
"pixel_time_us": 1,
"fov_nm": 10
}), 0)
instrument.validate_probe_position()
camera = instrument._get_camera_simulator("eels")
camera_size = camera._camera_shape
camera.noise.enabled = False
readout_area = Geometry.IntRect(origin=Geometry.IntPoint(),
size=camera_size)
binning_shape = Geometry.IntSize(1, 1)
# get the value at 200eV and ZLP offset of 0
instrument.ZLPoffset = -20
d = xd.sum(instrument.get_camera_data("eels", readout_area,
binning_shape, 0.01),
axis=0).data
# confirm it is a reasonable value
# print(measure_thickness(d))
self.assertTrue(0.40 < measure_thickness(d) < 1.00)
def test_eels_data_is_consistent_when_energy_offset_changes_with_negative_zlp_offset(
self):
instrument = InstrumentDevice.Instrument("usim_stem_controller")
instrument.get_scan_data(
scan_base.ScanFrameParameters({
"size": (256, 256),
"pixel_time_us": 1,
"fov_nm": 10
}), 0)
instrument.validate_probe_position()
camera = instrument._get_camera_simulator("eels")
camera_size = camera._camera_shape
camera.noise.enabled = False
readout_area = Geometry.IntRect(origin=Geometry.IntPoint(),
size=camera_size)
binning_shape = Geometry.IntSize(1, 1)
# get the value at 200eV and ZLP offset of 0
instrument.ZLPoffset = -20
instrument.get_camera_data("eels", readout_area, binning_shape, 0.01)