GroundBIRD: Observing Cosmic Microwave Polarization at Large Angular Scale with Kinetic Inductance Detectors and High-Speed Rotating Telescope
- Authors
- Oguri, S.; Choi, J.; Damayanthi, T.; Hattori, M.; Hazumi, M.; Ishitsuka, H.; Karatsu, K.; Mima, S.; Minowa, M.; Nagasaki, T.; Otani, C.; Sekimoto, Y.; Tajima, O.; Tomita, N.; Yoshida, M.; Won, E.
- Issue Date
- 8월-2016
- Publisher
- SPRINGER/PLENUM PUBLISHERS
- Keywords
- Cosmic microwave background; Polarization; Microwave kinetic inductance detector
- Citation
- JOURNAL OF LOW TEMPERATURE PHYSICS, v.184, no.3-4, pp.786 - 792
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF LOW TEMPERATURE PHYSICS
- Volume
- 184
- Number
- 3-4
- Start Page
- 786
- End Page
- 792
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/87923
- DOI
- 10.1007/s10909-015-1420-9
- ISSN
- 0022-2291
- Abstract
- Cosmic microwave background (CMB) is an important source of information about the origin of our universe. In particular, odd-parity large angular scale patterns in the CMB polarization, the primordial B-modes, are strong evidence for an inflationary universe, related to the accelerating expansion of the metric. We are developing a unique telescope, GroundBIRD, to take CMB polarization measurements. The telescope combines novel techniques: high-speed rotation scanning, cold optics, and microwave kinetic inductance detectors (MKIDs). We evaluated the response of MKIDs on the rotation stage. Method of shielding from the geo-magnetic field is established. We have also developed a receiver cryostat. We are able to maintain a sufficient cold status for observations on the optical configuration. We plan to start commissioning the system by observing CMB in Japan in 2015-2016. We will then deploy GroundBIRD in the Canary Islands for further scientific observations.
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Collections - College of Science > Department of Physics > 1. Journal Articles
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