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  1. No Access

    Article

    LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection

    LiteBIRD is a candidate satellite for a strategic large mission of JAXA. With its expected launch in the middle of the 2020s with a H3 rocket, LiteBIRD plans to map the polarization of the cosmic microwave bac...

    M. Hazumi, P. A. R. Ade, Y. Akiba, D. Alonso… in Journal of Low Temperature Physics (2019)

  2. No Access

    Article

    Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD

    The high-frequency telescope for LiteBIRD is designed with refractive and reflective optics. In order to improve sensitivity, this paper suggests the new optical configurations of the HFT which have approximat...

    T. Hasebe, S. Kashima, P. A. R. Ade, Y. Akiba… in Journal of Low Temperature Physics (2018)

  3. No Access

    Article

    The LiteBIRD Satellite Mission: Sub-Kelvin Instrument

    Inflation is the leading theory of the first instant of the universe. Inflation, which postulates that the universe underwent a period of rapid expansion an instant after its birth, provides convincing explana...

    A. Suzuki, P. A. R. Ade, Y. Akiba, D. Alonso… in Journal of Low Temperature Physics (2018)

  4. No Access

    Article

    The Polarbear-2 and the Simons Array Experiments

    We present an overview of the design and status of the Polarbear-2 and the Simons Array experiments. Polarbear-2 is a cosmic microwave background polarimetry experiment which aims to characterize the arc-minute a...

    A. Suzuki, P. Ade, Y. Akiba, C. Aleman, K. Arnold… in Journal of Low Temperature Physics (2016)

  5. No Access

    Article

    LiteBIRD: Mission Overview and Focal Plane Layout

    LiteBIRD is a proposed CMB polarization satellite project to probe the inflationary B-mode signal. The satellite is designed to measure the tensor-to-scalar ratio with a 68 % confidence level uncertainty of ...

    T. Matsumura, Y. Akiba, K. Arnold, J. Borrill… in Journal of Low Temperature Physics (2016)

  6. No Access

    Article

    Mission Design of LiteBIRD

    LiteBIRD is a next-generation satellite mission to measure the polarization of the cosmic microwave background (CMB) radiation. On large angular scales the B-mode polarization of the CMB carries the imprint of...

    T. Matsumura, Y. Akiba, J. Borrill, Y. Chinone… in Journal of Low Temperature Physics (2014)

  7. No Access

    Article

    The POLARBEAR-2 Experiment

    We present an overview of the design and development of the POLARBEAR-2 experiment. The POLARBEAR-2 experiment is a cosmic microwave background polarimetry experiment, which aims to characterize the small angu...

    A. Suzuki, P. Ade, Y. Akiba, C. Aleman, K. Arnold… in Journal of Low Temperature Physics (2014)

  8. No Access

    Article

    Advanced characterization of ultra-low-k periodic porous silica films – pore size distribution, pore-diameter anisotropy, and size and macroscopic isotropy of domain structure

    We have shown previously the results from out-of-plane and in-plane X-ray scattering /diffraction measurements together with transmission electron microscope and X-ray reflectance measurements and shown that t...

    N. Hata, C. Negoro, S. Takada, K. Yamada, Y. Oku… in MRS Online Proceedings Library (2003)

  9. No Access

    Article

    The Valence and Spin States of Ru Ions in Magnetic Superconductors RuEu1.4Ce0.6Sr2Cu2O10−δ and RuSr2YCu2O8 Studied by 99/101Ru-NMR

    We have carried out 99/101Ru-NMR, measurements at zero magnetic field in magnetic superconductors RuEu1.4Ce0.6Sr2Cu2O10−δ and RuSr2YCu2O8 to investigate charge and magnetic states of Ru ions in its magnetically o...

    Y. Furukawa, S. Takada, K. Kumagai, T. Kawashima… in Journal of Low Temperature Physics (2003)

  10. No Access

    Article

    X-ray detection by Nb STJs above 1.4 K

    We have designed and tested a 5×5 mm2 chip which includes 24 “island” Josephson tunnel junctions (STJs) with square, circular and diamond geometries, two arrays of 100 “island” junctions and other detection devic...

    R. Cristiano, E. Esposito, L. Frunzio, S. Pagano… in Journal of Low Temperature Physics (1993)