Jul 22 – 26, 2019
Europe/Rome timezone

The Medium and High Frequencies Telescopes of LiteBIRD

Jul 23, 2019, 5:45 PM
1h 15m
Piazza Città di Lombardia (Milano)

Piazza Città di Lombardia


Piazza Città di Lombardia, 1, 20124 Milano MI
Poster Low Temperature Detector fabrication techniques and materials Poster session


Baptiste Mot (IRAP-CNRS)


LiteBIRD is a JAXA led strategic L-Class mission designed to the measure the cosmic microwave background (CMB) polarization over the full sky at large angular scales. Measurements over 15 bandwidths from 34 GHz to 448 GHz are made by three telescopes: the Low, the Medium and the High Frequency Telescope (respectively LFT, MFT and HFT).
The Medium Frequency Telescope (89 - 224 GHz) and the High Frequency Telescope (166 - 448 GHz), under the European responsibility, are two cryogenics refractive telescopes cooled down to 5 K. They are composed of a continuous rotating half wave plate as first optical element, two High Density Polyethylene (HDPE) lenses and more than 2100 Transition Edge Sensors (TES) detectors for the MFT (more than 1300 TES for the HFT) cooled down to 100 mK.
An overview of the current design of the LiteBIRD Medium & High Frequency Telescopes is presented.

Student (Ph.D., M.Sc. or B.Sc.) N
Less than 5 years of experience since completion of Ph.D N

Primary authors

Baptiste Mot (IRAP-CNRS) L. Montier (Institut de Recherche en Astrophysique et Planétologie, Toulouse (CNRS-INSU) France) Paolo De Bernardis (ROMA1) Giampaolo Pisano (School of Physics and Astronomy, Cardiff University) B. Maffei (Institut d’Astrophysique Spatiale, Orsay (CNRS-INSU) France) Kam Arnold (University of California, San Diego) Marco Rinaldo Fedele Bersanelli (MI) Mr Jean-François Cliche Fabio Columbro (ROMA1) Marco De Petris (ROMA1) C. Franceschet (Universita degli studi di Milano Italy) Masashi Hazumi (KEK, Tsukuba) Mr Frank Grupp Takashi Hasebe (JAXA/ISAS) Mr Peter Hargrave Sophie Henrot-Versille (LAL Paris) Luca Lamagna (ROMA1) Silvia Masi (ROMA1) Mr Romain Matton (IRAP) Mr Gilles Roudil (IRAP ) Dr Yutaro Sekimoto (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) Mr Keith Thompson Carol Tucker (School of Physics and Astronomy, Cardiff University) Benjamin Westbrook (1985) Mr Berend Winter

Presentation materials