학술논문

Sensitivity Modeling for LiteBIRD.
Document Type
Article
Source
Journal of Low Temperature Physics. Jun2023, Vol. 211 Issue 5/6, p384-397. 14p.
Subject
*INFLATIONARY universe
*PHYSICAL optics
*COSMIC background radiation
*BOLOMETERS
Language
ISSN
0022-2291
Abstract
LiteBIRD is a future satellite mission designed to observe the polarization of the cosmic microwave background radiation in order to probe the inflationary universe. LiteBIRD is set to observe the sky using three telescopes with transition-edge sensor bolometers. In this work we estimated the LiteBIRD instrumental sensitivity using its current design. We estimated the detector noise due to the optical loadings using physical optics and ray-tracing simulations. The noise terms associated with thermal carrier and readout noise were modeled in the detector noise calculation. We calculated the observational sensitivities over fifteen bands designed for the LiteBIRD telescopes using assumed observation time efficiency. [ABSTRACT FROM AUTHOR]