get_livetime_fraction# stixpy.calibration.livetime.get_livetime_fraction( trigger_rate, *, eta=<Quantity 1.1 us>, tau=<Quantity 10.1 us>, )[source]# Return the live time fraction for the given trigger rate. Parameters: trigger_rate (float) – Event trigger rate eta (float) – Latency per event tau (float) – Readout time per event Returns: float, float, float – The correct live time fraction, two photon contribution, and number of input photon.