simtools-derive-photon-electron-spectrum

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simtools-derive-photon-electron-spectrum#

Derive single photon electron spectrum from a given amplitude spectrum.

Normalizes singe-p.e. amplitude distribution to mean amplitude of 1.0, as required by sim_telarray. Allows to fold in afterpulse distribution to prompt a spectrum. Uses the sim_telarray tool ‘norm_spe’ to normalize the spectra.

Input files can be in ecsv format (preferred) or in the sim_telarray legacy format.

Two output files with identical data are written to the output directory:

  • ‘output_file’.ecsv: Single photon electron spectrum in ecsv format (data and metadata).

  • ‘output_file’.dat: Single photon electron spectrum in sim_telarray format.

Example#

simtools-derive-photon-electron-spectrum \\
    --input_spectrum spectrum_photon_electron.ecsv \\
    --afterpulse_spectrum spectrum_afterpulse.ecsv \\
    --step_size 0.02 \\
    --max_amplitude 42.0 \\
    --use_norm_spe \\
    --output_path ./tests/output \\
    --output_file spectrum_photon_electron_afterpulse.ecsv

For an example of how to plot the single photon electron spectrum, see the integration test ‘tests/integration_tests/config/plot_tabular_data_for_single_pe_data.yml’.

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