TY - JOUR
T1 - GroundBIRD
T2 - Observing Cosmic Microwave Polarization at Large Angular Scale with Kinetic Inductance Detectors and High-Speed Rotating Telescope
AU - Oguri, S.
AU - Choi, J.
AU - Damayanthi, T.
AU - Hattori, M.
AU - Hazumi, M.
AU - Ishitsuka, H.
AU - Karatsu, K.
AU - Mima, S.
AU - Minowa, M.
AU - Nagasaki, T.
AU - Otani, C.
AU - Sekimoto, Y.
AU - Tajima, O.
AU - Tomita, N.
AU - Yoshida, M.
AU - Won, E.
N1 - Publisher Copyright:
© 2015, Springer Science+Business Media New York.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - 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.
AB - 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.
KW - Cosmic microwave background
KW - Microwave kinetic inductance detector
KW - Polarization
UR - http://www.scopus.com/inward/record.url?scp=84952649213&partnerID=8YFLogxK
U2 - 10.1007/s10909-015-1420-9
DO - 10.1007/s10909-015-1420-9
M3 - Article
AN - SCOPUS:84952649213
SN - 0022-2291
VL - 184
SP - 786
EP - 792
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 3-4
ER -