A Far Infrared Polarimeter

Details A Far Infrared Polarimeter A Far Infrared Polarimeter

2004-05-20

arxiv.org/abs/astro-ph/0405399v1

New Astron. 10 (2004) 79-89

Astronomy and Astrophysics

Astrophysics

17 pages, 12 figures, 1 table, submitted to New Astronomy

Scientific paper

10.1016/j.newast.2004.05.002

We describe an experiment to measure calibration sources, the polarization of Cosmic Microwave Background Radiation (CMBR) and the polarization induced on the CMBR from S-Z effects, using a polarimeter, MITOPol, that will be employed at the MITO telescope. Two modulation methods are presented and compared: an amplitude modulation with a Fresnel double rhomb and a phase modulation with a modified Martin-Puplett interferometer. A first light is presented from the campaign (summer 2003) that has permitted to estimate the instrument spurious polarization using the second modulation method.

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