LiteBIRD: Mission Overview and Focal Plane Layout

LiteBIRD is a proposed CMB polarization satellite project to probe the inflationary B-mode signal. The satellite is designed to measure the tensor-to-scalar ratio with a 68 % confidence level uncertainty of $$\sigma _\mathrm{r}<10^{-3}$$σr<10-3, including statistical, instrumental systematic, and foreground uncertainties. LiteBIRD will observe the full sky from the second Lagrange point for 3 years. We have a focal plane layout for observing frequency coverage that spans 40–402 GHz to characterize the galactic foregrounds. We have two detector candidates, transition-edge sensor bolometers and microwave kinetic inductance detectors. In both cases, a telecentric focal plane consists of approximately $$2\times 10^3$$2×103 superconducting detectors. We will present the mission overview of LiteBIRD, the project status, and the TES focal plane layout.