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The CMB Power Spectrum from the Background Emission Anisotropy Scanning Telescope (BEAST) Experiment
Ian J. O'Dwyer, Marco Bersanelli, Jeffrey Childers +19
The Background Emission Anisotropy Scanning Telescope (BEAST) is a 2.2m off-axis telescope with an 8 element mixed Q (38-45GHz) and Ka (26-36GHz) band focal plane, designed for bal…
Current Status and Perspectives of Cosmic Microwave Background Observations
Marco Bersanelli, Davide Maino, Aniello Mennella
Measurements of the cosmic microwave background (CMB) radiation provide a unique opportunity for a direct study of the primordial cosmic plasma at redshift z ~1000. The angular pow…
The Low Frequency Instrument in the ESA Planck mission
A. Mennella, M. Bersanelli, B. Cappellini +8
Measurements of the cosmic microwave background (CMB) allow high precision observation of the cosmic plasma at redshift z~1100. After the success of the NASA satellite COBE, that i…
Optimized in-flight absolute calibration for extended CMB surveys
B. Cappellini, D. Maino, G. Albetti +4
Accurate measurements of the Cosmic Microwave Background (CMB) anisotropy call for high precision and reliability of the in-flight calibration. For extended surveys the CMB dipole…
Offset balancing in pseudo-correlation radiometers for CMB measurements
Aniello Mennella, Marco Bersanelli, Michael Seiffert +4
Radiometeric CMB measurements need to be highly stable and this stability is best obtained with differential receivers. The residual 1/f noise in the differential output is strongl…
High Performances Corrugated Feed Horns for Space Applications at Millimetre Wavelengths
F. Villa, M. Sandri, N. Mandolesi +11
We report on the design, fabrication and testing of a set of high performance corrugated feed horns at 30 GHz, 70 GHz and 100 GHz, built as advanced prototypes for the Low Frequenc…