A coherent polarimeter array for the Large Scale Polarization Explorer (LSPE) balloon experiment - INSPIRE

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

Aug, 2012

14 pages

Part of Proceedings, SPIE Astronomical Telescopes + Instrumentation 2012: Ground-based and Airborne Telescopes IV : Amsterdam, Netherlands, July 1, 2012

Published in:

Proc.SPIE Int.Soc.Opt.Eng. 8446 (2012) 84467C

Contribution to:

SPIE Astronomical Telescopes + Instrumentation 2012 : Ground-based and Airborne Telescopes IV

Published: Sep 24, 2012

e-Print:

1208.0164 [astro-ph.IM]

DOI:

10.1117/12.925688

View in:

ADS Abstract Service

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Abstract: (International Society for Optics and Photonics)

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 ~0.6 meter telescope providing an angular resolution of ~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.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Note:

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

Polarization
Receivers
Spatial resolution
Staring arrays
Telescopes
Waveguides
Amplifiers
Field effect transistors

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