Progress Report on the Large-Scale Polarization Explorer

  title={Progress Report on the Large-Scale Polarization Explorer},
  author={L. Lamagna and Giuseppe Addamo and Peter A. R. Ade and Carlo Baccigalupi and Alessandro M. Baldini and Paola Maria Battaglia and E. S. Battistelli and A. Bau and M. Bersanelli and Michele Biasotti and Corrado Boragno and Andrea Boscaleri and Barbara Caccianiga and Silvia Caprioli and Francesco Cavaliere and Fabrizio Cei and Kieran A. Cleary and Fabio Columbro and Gabriele Coppi and A. Coppolecchia and D. Corsini and F. Cuttaia and G. D’Alessandro and Paolo Bernardis and Giancarlo de Gasperis and Marco Petris and F. Del Torto and V Fafone and Zunnoorain Farooqui and Farida Farsian and Flavio Fontanelli and Cristian Franceschet and Todd Gaier and Flavio Gatti and Ricardo G{\'e}nova-Santos and M. Gervasi and Tommaso Ghigna and Marco Grassi and D. Grosso and R. Gualtieri and Federico Incardona and M E Jones and Pekka Kangaslahti and Nicoletta Krachmalnicoff and Roberto Mainini and Davide Maino and Stefano Mandelli and Michele Maris and Silvia Masi and Sabino Matarrese and Andrew J. May and P. Mena and Aniello Mennella and Rocio Molina and Diego Molinari and G. Morgante and Federico Nati and Paolo Natoli and Luca Pagano and Alessandro Paiella and Fabio Paonessa and A. G. Passerini and M. R. P{\'e}rez-de-Taoro and Oscar Antonio Peverini and Federico Pezzotta and Francesco Piacentini and Lucio Piccirillo and Giampaolo Pisano and Linda Polastri and Gianluca Polenta and Davide Poletti and G. Leonard Presta and Sabrina Realini and Nicolas Reyes and Alessio Rocchi and Jos{\'e} Alberto Rubi{\~n}o-Mart{\'i}n and M. Sandri and Stefano Sartor and Alessandro Schillaci and Giovanni Signorelli and Mary Soria and Franco Spinella and Valeria Tapia and Andrea Tartari and A. N. Taylor and Luca Terenzi and Maurizio Tomasi and Elisabetta Tommasi and C E Tucker and Davide Vaccaro and Daniele Vigan{\`o} and Fabrizio Villa and Giuseppe Virone and Nicola Vittorio and Annalisa Volpe and Bob Watkins and Andrea Zacchei and Mario Zannoni},
  journal={Journal of Low Temperature Physics},
The large-scale polarization explorer (LSPE) is a cosmology program for the measurement of large-scale curl-like features (B-modes) in the polarization of the cosmic microwave background. Its goal is to constrain the background of inflationary gravity waves traveling through the universe at the time of matter-radiation decoupling. The two instruments of LSPE are meant to synergically operate by covering a large portion of the northern microwave sky. LSPE/STRIP is a coherent array of receivers… 
The large scale polarization explorer (LSPE) for CMB measurements: performance forecast
The measurement of the polarization of the Cosmic Microwave Background (CMB) radiation is one of the current frontiers in cosmology. In particular, the detection of the primordial divergence-free
Overview of the medium and high frequency telescopes of the LiteBIRD space mission
LiteBIRD is a JAXA-led Strategic Large-Class mission designed to search for the existence of the primordial gravitational waves produced during the inflationary phase of the Universe, through the
A polarization modulator unit for the mid- and high-frequency telescopes of the LiteBIRD mission
The LiteBIRD mission is a JAXA strategic L-class mission for all sky CMB surveys which will be launched in the 2020s. The main target of the mission is the detection of primordial gravitational waves
The optical design of the Litebird middle and high frequency telescope
LiteBIRD is a JAXA strategic L-class mission devoted to the measurement of polarization of the Cosmic Microwave Background, searching for the signature of primordial gravitational waves in the
QUBIC VI: Cryogenic half wave plate rotator, design and performance
Setting an upper limit or detection of B-mode polarization imprinted by gravitational waves from Inflation is one goal of modern large angular scale cosmic microwave background (CMB) experiments
Total power horn-coupled 150 GHz LEKID array for space applications
We have developed two arrays of lumped element kinetic inductance detectors working in the D-band, and optimised for the low radiative background conditions of a satellite mission aiming at precision
QUBIC V: Cryogenic system design and performance
Current experiments aimed at measuring the polarization of the Cosmic Microwave Background (CMB) use cryogenic detector arrays with cold optical systems to boost their mapping speed. For this reason,
Frequency shift algorithm: Application to a frequency-domain multiplexing readout of x-ray transition-edge sensor microcalorimeters.
It is shown that with FSA, in the multi-pixel and frequencies shifted on-grid, the line noises due to intermodulation distortion are placed away from the sensitive region in the TES response and the x-ray performance is consistent with the single-pixel, on-resonance level.
Design and Verification of a Q-Band Test Source for UAV-Based Radiation Pattern Measurements
The payload solution is based on a phase-locked loop synthesizer and an active multiplier coupled with a power detector to compensate for signal power drifts in postprocessing and is in good agreement with both the anechoic chamber measurements and simulated data.
A simple method to measure the temperature and levitation height of devices rotating at cryogenic temperatures.
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The balloon-borne LSPE mission is optimized to measure the linear polarization of the Cosmic Microwave Background at large angular scales. The Short Wavelength Instrument for the Polarization
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In this paper we investigate the impact of using a polarization modulator in the Short Wavelenght Instrument for the Polarization Explorer (SWIPE) of the Large Scale Polarization Explorer (LSPE). The
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LiteBIRD is a candidate for JAXA’s strategic large mission to observe the cosmic microwave background (CMB) polarization over the full sky at large angular scales. It is planned to be launched in the
Development of the multi-mode horn-lens configuration for the LSPE-SWIPE B-mode experiment
The Large Scale Polarisation Explorer (LSPE) is a balloon-borne experiment aiming to measure the B-mode component of the CMB polarisation at large angular scales. Onboard LSPE, the Short Wavelength
Multi-mode TES Bolometer Optimization for the LSPE-SWIPE Instrument
In this paper, we explore the possibility of using transition edge sensor (TES) detectors in multi-mode configuration in the focal plane of the Short Wavelength Instrument for the Polarization
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The design and experimental demonstration of a 16-channel frequency-domain multiplexing (FDM) read-out for transition-edge sensor bolometers is presented. This MUX electronics is intended to read out
SWIPE Multi-mode Pixel Assembly Design and Beam Pattern Measurements at Cryogenic Temperature
In this paper, we present beam pattern tests performed on the SWIPE multi-mode bolometric detector pixel assembly. A 20-mm-aperture horn is coupled to a large detector absorber (10 mm diameter) with
A large-diameter hollow-shaft cryogenic motor based on a superconducting magnetic bearing for millimeter-wave polarimetry.
The design and measured performance of a novel cryogenic motor based on a superconducting magnetic bearing (SMB) tailored for use in millimeter-wave half-wave plate (HWP) polarimeters, where a HWP is rapidly rotated in front of a polarization analyzer or polarization-sensitive detector.
A clamp and release system for superconducting magnetic bearings.
A simple and reliable clamp/release system for the rotor of large superconducting magnetic bearings for cryogenic half-wave plate spinner for cosmic microwave background polarimetry and high reliability over a very large number of operation cycles is described.
A Joint Analysis of BICEP 2 / Keck Array and Planck Data BICEP 2 / Keck and Planck Collaborations :
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