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Responsivity calibration of the QUIET Q-Band array
The Q/U Imaging ExperimenT (QUIET), a ground-based experiment located in the Atacama Desert in Chile, measures the polarization of the Cosmic Microwave Background (CMB). In Phase I, it measures the CMB polarization at angular scales of 25 (see manuscript) l (see manuscript) 1000 using radiometer arrays in the Q (44 GHz) and W (95 GHz) frequency bands. The Q-band and W-band receivers of Phase I of the QUIET instrument contain 2 and 6 total power modules (TT modules), and 17 and 84 polarization mo...
Thermal and mechanical architecture for the SAFARI focal plane assembly
The very challenging SPICA/SAFARI scientific goals imply to cool most detector solutions below 100 mK. This implies to find reliable solutions providing not only very efficient thermal insulation between the different temperature stages, but also keeping the stray light level well below the foreseen astronomical background (20 aW/pixel !). The main constraint is the available power budget (1-2μW); this value includes optical, electrical and parasitic power loads. This poster describes how the He...
Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP
Proc. SPIE 7741, 77412O (2010); http://dx.doi.org/10.1117/12.856855
California Institute of Technology (USA)
Univ. of Wales (United Kingdom)
Joint ALMA Office (Chile)
Univ. of California, San Diego (USA)
Jet Propulsion Lab. (USA)
Jet Propulsion Lab. (USA) and California Institute of Technology (USA)
Princeton Univ. (USA)
California Institute of Technology (USA) and Jet Propulsion Lab. (USA)
Commissariat à l'Energie Atomique (France)
Institut d'Astrophysique de Paris (France)
Univ. of California, Berkeley (USA)
Harvard Univ. (USA)
Stanford Univ. (USA)
Univ. Paris XI (France)
The Univ. of Chicago (USA)
National Institute of Standards and Technology (USA)
© 2010 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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