GroundBIRD Experiment: Detecting CMB Polarization Power in a Large Angular Scale from the Ground

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

Research output: Contribution to journalArticle

4 Citations (Scopus)


GroundBIRD is a ground-based experiment designed to detect large angular scale odd-parity patterns in the cosmic microwave background (CMB) polarization ( {Mathematical expression}-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 {Mathematical expression} without any effect from the detector {Mathematical expression} noise. We use microwave kinetic inductance detectors (MKIDs) arrays with a small telescope; our target multipole ( {Mathematical expression}) range is {Mathematical expression}. 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)1-7
Number of pages7
JournalJournal of Low Temperature Physics
Publication statusAccepted/In press - 2014 Feb 28



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

ASJC Scopus subject areas

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

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