Kavli Affiliate: Tomotake Matsumura
| First 5 Authors: Samantha Lynn Stever, Tommaso Ghigna, Mayu Tominaga, Giuseppe Puglisi, Masahiro Tsujimoto
| Summary:
Systematic effects arising from cosmic rays have been shown to be a
significant threat to space telescopes using high-sensitivity bolometers. The
LiteBIRD space mission aims to measure the polarised Cosmic Microwave
Background with unprecedented sensitivity, but its positioning in space will
also render it susceptible to cosmic ray effects. We present an end-to-end
simulator for evaluating the expected scale of cosmic ray effect on the
LiteBIRD space mission, which we demonstrate on a subset of detectors on the
166 GHz band of the Low Frequency Telescope. The simulator couples the expected
proton flux at L2 with a model of the thermal response of the LFT focal plane
and the electrothermal response of its superconducting detectors, producing
time-ordered data which is projected into simulated sky maps and subsequent
angular power spectra.
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