Measurement of a 10 metre composite radio dish surface shape between 2008 and 2010

Author

Lacy, Gordon ; Gray, Andrew

Author_Institution

Dominion Radio Astrophys. Obs., Nat. Res. Council, Penticton, BC, Canada

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

A composite radio reflector (the MkII) was molded at the Dominion Radio Astrophysical Observatory (DRAO) in 2008. The MkII was built as a demonstrator for the International Square Kilometre Array (SKA). Since 2008, the MkII has been used to test a prototype Phased Array Feed (PHAD). This PHAD demonstrator puts a substantial load on the structure. The MkII telescope has also been used to investigate composite thermal and weathering issues. The surface shape of the main reflector were recorded in 2008 and again in 2010 using a laser scanner. These data are compared. Some interesting results are presented.

Keywords

antenna arrays; radiotelescopes; Dominion Radio Astrophysical Observatory; International Square Kilometre Array; Mkll telescope; PHAD demonstrator; composite radio dish surface; composite radio reflector; composite thermal issue; phased array feed; size 10 m; weathering issue; Feeds; Measurement by laser beam; Noise; Radio astronomy; Shape; Shape measurement; Telescopes;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6123726

Filename

6123726