def collection_procedure(filename):
# File import -----------------------------------------------------------
event_collection = CImporterEventsDualEnergy.import_data(filename, 0)
print("#### Opening file ####")
print(filename)
# Energy discrimination -------------------------------------------------
CEnergyDiscrimination.discriminate_by_energy(event_collection, low_threshold_kev=425,
high_threshold_kev=700)
# Filtering of unwanted photon types ------------------------------------
event_collection.remove_unwanted_photon_types(remove_thermal_noise=False, remove_after_pulsing=False,
remove_crosstalk=False, remove_masked_photons=True)
event_collection.save_for_hardware_simulator()
# Sharing of TDCs --------------------------------------------------------
# event_collection.apply_tdc_sharing(pixels_per_tdc_x=1, pixels_per_tdc_y=1)
# First photon discriminator ---------------------------------------------
# DiscriminatorMultiWindow.DiscriminatorMultiWindow(event_collection)
DiscriminatorDualWindow.DiscriminatorDualWindow(event_collection)
# Making of coincidences -------------------------------------------------
coincidence_collection = CCoincidenceCollection(event_collection)
# Apply TDC - Must be applied after making the coincidences because the
# coincidence adds a random time offset to pairs of events
tdc = CTdc(system_clock_period_ps=5000, tdc_bin_width_ps=1, tdc_jitter_std=1)
tdc.get_sampled_timestamps(coincidence_collection.detector1)
tdc.get_sampled_timestamps(coincidence_collection.detector2)
return event_collection, coincidence_collection
def main_loop():
# Parse input
parser = argparse.ArgumentParser(description='Process data out of the Spad Simulator')
parser.add_argument("filename", help='The file path of the data to import')
args = parser.parse_args()
# File import --------------------------------------------------------------------------------------------------
event_collection = CImporterEventsDualEnergy.import_data(args.filename, 0)
# Energy discrimination ----------------------------------------------------------------------------------------
CEnergyDiscrimination.discriminate_by_energy(event_collection, low_threshold_kev=425, high_threshold_kev=700)
# Filtering of unwanted photon types ---------------------------------------------------------------------------
event_collection.remove_unwanted_photon_types(remove_thermal_noise=False, remove_after_pulsing=False, remove_crosstalk=False, remove_masked_photons=False)
event_collection.save_for_hardware_simulator()
# Sharing of TDCs --------------------------------------------------------------------------------------------------
event_collection.apply_tdc_sharing( pixels_per_tdc_x=5, pixels_per_tdc_y=5)
# First photon discriminator -----------------------------------------------------------------------------------
DiscriminatorDualWindow.DiscriminatorDualWindow(event_collection)
#DiscriminatorWindowDensity.DiscriminatorWindowDensity(event_collection, qty_photons_to_keep=9)
#DiscriminatorForwardDelta.DiscriminatorForwardDelta(event_collection, qty_photons_to_keep=3)
# Making of coincidences ---------------------------------------------------------------------------------------
coincidence_collection = CCoincidenceCollection(event_collection)
# Apply TDC - Must be applied after making the coincidences because the coincidence adds a random time offset to pairs of events
tdc = CTdc(system_clock_period_ps = 4000, tdc_bin_width_ps = 10, tdc_jitter_std =10)
tdc.get_sampled_timestamps(coincidence_collection.detector1)
tdc.get_sampled_timestamps(coincidence_collection.detector2)
max_order = 8
if(max_order > event_collection.qty_of_photons):
max_order = event_collection.qty_of_photons
print "\n### Calculating time resolution for different algorithms ###"
# Running timing algorithms ------------------------------------------------------------------------------------
for i in range(1, max_order):
algorithm = CAlgorithmSinglePhoton(photon_count=i)
run_timing_algorithm(algorithm, coincidence_collection)
for i in range(2, max_order):
algorithm = CAlgorithmBlueExpectationMaximisation(coincidence_collection, photon_count=i)
run_timing_algorithm(algorithm, coincidence_collection)