Abstract
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 primordial gravitational waves, and its precise measurement would provide a powerful probe of the epoch of inflation. The goal of LiteBIRD is to achieve a measurement of the characterizing tensor to scalar ratio \(r\) to an uncertainty of \(\delta r=0.001\). In order to achieve this goal we will employ a kilo-pixel superconducting detector array on a cryogenically cooled sub-Kelvin focal plane with an optical system at a temperature of 4 K. We are currently considering two detector array options; transition edge sensor (TES) bolometers and microwave kinetic inductance detectors. In this paper we give an overview of LiteBIRD and describe a TES-based polarimeter designed to achieve the target sensitivity of 2 \(\upmu \)K arcmin over the frequency range 50–320 GHz.
Similar content being viewed by others
References
J. Bock et al., EPIC-IM, arXiv:0906.1188
COrE Collaboration, COrE A White Paper, arXiv:1102.2181
A. Kogut et al., PIXIE, arXiv:1105.2044
M. Hazumi et al., LiteBIRD, SPIE (2012)
PRISM Collaboration, PRISM, arXiv:1306.2259
P. Mauskopf et al., 21st International symposium on space terahertz technology, Oxford, 23–25 March 2010
N. Katayama, E. Komatsu, Astrophys. J. 7(37), 78 (2011)
J. Dunkley et al., arXiv:0811.3915
A. Suzuki et al., in Proceedings of SPIE, vol 8452; 8452 3H, (2012)
T. Tomaru et al., The POLARBEAR-2 Experiment, SPIE, (2012)
K. Karatsu et al., in Proceedings of SPIE, vol 8452, 84520Q-1 (2012)
J.C. Mather, Appl. Opt. 21(6), 1125–1129 (1982)
P.L. Richards, J. Appl. Phys. 76(1), 1–24 (1994)
J. Hubmayr, Ph.D. Thesis, University of Minnesota, Twin Cities
M. Dobbs et al., J. Low Temp. Phys. 167, 568–574 (2012)
M. Dobbs, M. Lueker et al., Rev. Sci. Instrum. 83, 073113 (2012)
Planck Collaboration, Planck 2013 Results X, 2013 Submitted to A&A, arXiv:1303.5071
S. Hanany et al., MNRAS 299, 653 (1998)
Planck Collaboration, Planck 2013 Results VII, 2013 Submitted to A&A, arXiv:1303.5071
Acknowledgments
This work is supported by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan under KAKENHI Grant Numbers 21111002, 21111003, 24111715, 24740182.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Matsumura, T., Akiba, Y., Borrill, J. et al. Mission Design of LiteBIRD. J Low Temp Phys 176, 733–740 (2014). https://doi.org/10.1007/s10909-013-0996-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10909-013-0996-1