The PolarKID project: polarization measurements with KIDs for the next generation of CMB telescopes

TL;DR

The PolarKID project develops and tests a novel KID-based method for measuring polarized sources to identify systematic effects in CMB B-mode detection, using a specialized instrument and sources.

Contribution

It introduces a new approach employing KID arrays and a sky simulator to evaluate instrumental systematics in polarization measurements for CMB studies.

Findings

Successful implementation of KID arrays for polarization measurements.

Identification of potential systematic effects in polarization detection.

Validation of the method with simulated sources.

Abstract

The goal of the PolarKID project is testing a new method for the measurement of polarized sources, in order to identify all the possible instrumental systematic effects that could impact the detection of CMB B-modes of polarization. It employs the KISS (KIDs Interferometer Spectrum Survey) instrument coupled to a sky simulator and to sources such as point-like black bodies (simulating planets), a dipole (extended source) and a polarizer. We use filled-arrays Lumped Element Kinetic Inductance Detectors (LEKIDs) since they have multiple advantages when observing both in a photometry and in a polarimetry configuration