Rayleigh beacon for measuring the surface profile of a radio telescope.

@article{Padin2014RayleighBF,
  title={Rayleigh beacon for measuring the surface profile of a radio telescope.},
  author={Stephen Padin},
  journal={Applied optics},
  year={2014},
  volume={53 34},
  pages={8116-22}
}
Millimeter-wavelength Rayleigh scattering from water droplets in a cloud is proposed as a means of generating a bright beacon for measuring the surface profile of a radio telescope. A λ=3  mm transmitter, with an output power of a few watts, illuminating a stratiform cloud, can generate a beacon with the same flux as Mars in 10 GHz bandwidth, but the beacon… CONTINUE READING