Extending the observable zenith angle of FAST using an offset feed

The five hundred meter aperture spherical radio telescope is will use an active spherical reflector. When the zenith scan angle is changed, the illuminated part of the reflecting surface is made to fit a paraboloid of revolution in real time by active control. The maximum zenith scan angle

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Bibliographic Details
Published in:Astrophysics and space science 2001-10, Vol.278 (1-2), p.255-259
Main Authors: Guoding, Li, Nan, R, Peng, B
Format: Article
Language:English
Subjects:
Active control
Angle of reflection
Apertures
Astrophysics
Measuring instruments
Radio telescopes
Real time
Reflectors
Surface chemistry
Zenith
Online Access:Get full text
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Description
Summary:The five hundred meter aperture spherical radio telescope is will use an active spherical reflector. When the zenith scan angle is changed, the illuminated part of the reflecting surface is made to fit a paraboloid of revolution in real time by active control. The maximum zenith scan angle
ISSN:0004-640X
1572-946X
DOI:10.1023/A:1013108208190