GroundBIRD experiment: Detecting CMB polarization power in a large angular scale from the ground

S. Oguri, J. Choi, M. Hazumi, M. Kawai, O. Tajima, E. Won, M. Yoshida

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

GroundBIRD is a ground-based experiment designed to detect large angular scale odd-parity patterns in the cosmic microwave background (CMB) polarization (B -modes). We employ a high-speed rotation scan (20 rpm) instead of the usual left-right azimuthal scan; it allows a significant expansion of the scan range to 60° without any effect from the detector 1/f noise. We use microwave kinetic inductance detectors (MKIDs) arrays with a small telescope; our target multipole (ℓ) range is 6 ≤ ℓ ≤ 300. We plan to start the test observation in Japan in 2014; these will then be moved to the Atacama highland in Chile for scientific observations.

Original languageEnglish
Pages (from-to)691-697
Number of pages7
JournalJournal of Low Temperature Physics
Volume176
Issue number5-6
DOIs
Publication statusPublished - 2014 Sep

Keywords

  • Cosmic microwave background
  • Inflationary universe
  • Microwave kinetic inductance detector
  • Polarization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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