Spillover and diffraction sidelobe contamination in a double-shielded experiment for mapping Galactic synchrotron emission

@article{Tello2000SpilloverAD,
  title={Spillover and diffraction sidelobe contamination in a double-shielded experiment for mapping Galactic synchrotron emission},
  author={Camilo Tello and Thyrso Villela and George F. Smoot and M. Bersanelli and Newton Figueiredo and Giovanni De Amici and M. Bensadoun and Carlos Alexandre Wuensche and S. Torres Instituto Nacional de Pesquisas Espaciais and Brazil Lawrence Berkeley National Laboratory and U. Milano and Italy Escola Federal de Engenharia de Itajuba and Brazil Trw and Usa Newfield Wireless Inc and Usa Centro Internacional de Fisica and Colombia},
  journal={Astronomy \& Astrophysics Supplement Series},
  year={2000},
  volume={145},
  pages={495-508}
}
We have analyzed observations from a radioas- tronomical experiment to survey the sky at decimetric wavelengths along with feed pattern measurements in or- der to account for the level of ground contamination enter- ing the sidelobes. A major asset of the experiment is the use of a wire mesh fence around the rim-halo shielded an- tenna with the purpose of levelling out and reducing this source of stray radiation for zenith-centered 1-rpm circu- lar scans. We investigate the shielding… 

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