| 研究実績の概要 |
During the course of this research project, we have carried out a large number of experiments and simulation tasks relating to evaluating cosmic ray systematic effects in next-generation CMB telescopes. Because it is necessary to measure the CMB at large angular scales, measurements must be taken from space, and telescopes are therefore subject to cosmic radiation. Detectors on such telescopes are very sensitive and are kept at cold temperatures in order to reduce noise and measure the small sky signal very precisely.
In our study, we have produced an end-to-end simulator for evaluating the systematic effects produced by cosmic rays in LiteBIRD. By accounting for the space environment, the thermal response of the focal plane, the electrothermal response of the detectors, and the propagation of time-ordered data into maps, we can find the level of CR effects in order to reduce the severity of them.
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