Published December 1, 2014
| Published
Journal Article
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Rayleigh beacon for measuring the surface profile of a radio telescope
- Creators
- Padin, S.
Abstract
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 has a narrow line width, so it is extremely bright. The key advantage of the beacon is that it can be used at any time, and positioned anywhere in the sky, as long as there are clouds.
Additional Information
© 2014 Optical Society of America. Received 16 September 2014; revised 31 October 2014; accepted 1 November 2014; posted 4 November 2014 (Doc. ID 223243); published 25 November 2014. Thanks to Jaap Baars, Richard Dekany, Richard Hills, Jeff Mangum, Ross Williamson, and David Woody for useful comments.Attached Files
Published - ao-53-34-8116.pdf
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Additional details
- Eprint ID
- 53333
- Resolver ID
- CaltechAUTHORS:20150108-095302251
- Created
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2015-01-08Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field