A coherent polarimeter array for the Large Scale Polarization Explorer balloon experiment

Abstract

We discuss the design and expected performance of STRIP (STRatospheric Italian Polarimeter), an array of coherent receivers designed to fly on board the LSPE (Large Scale Polarization Explorer) balloon experiment. The STRIP focal plane array comprises 49 elements in Q band and 7 elements in W-band using cryogenic HEMT low noise amplifiers and high performance waveguide components. In operation, the array will be cooled to 20 K and placed in the focal plane of a $\sim 0.6$ meter telescope providing an angular resolution of $\sim 1.5$ degrees. The LSPE experiment aims at large scale, high sensitivity measurements of CMB polarization, with multi-frequency deep measurements to optimize component separation. The STRIP Q-band channel is crucial to accurately measure and remove the synchrotron polarized component, while the W-band channel, together with a bolometric channel at the same frequency, provides a crucial cross-check for systematic effects.

In press on the Proceedings of the SPIE Conference Astronomical Telescopes + instrumentation 2012, Amsterdam, paper 8446-279

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Cited by in corpus (7)

• The large scale polarization explorer (LSPE) for CMB measurements: performance forecast
• Maps of CMB lensing deflection from N-body simulations in Coupled Dark Energy Cosmologies
• Multi-Clustering Needlet-ILC for CMB B-modes component separation
• A new map-making algorithm for CMB polarisation experiments
• The STRIP instrument of the Large Scale Polarization Explorer: microwave eyes to map the Galactic polarized foregrounds
• On beam characterization of ground-based CMB radio telescopes using UAV-mounted sources: application to the QUIJOTE TFGI and plans for LSPE-Strip
• Forecast analysis and focal plane optimization for a multi-frequency CMB B-modes polarization experiment: the case of LSPE