28 July 2008 Interferometry at mid-infrared wavelengths: the ISI system
Author Affiliations +
Proceedings Volume 7013, Optical and Infrared Interferometry; 70130D (2008); doi: 10.1117/12.791197
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France
Abstract
The ISI (Infrared Spatial Interferometer) involves three movable telescopes of Pfund design, each in trailers, each with a radiation collecting mirror 65 inches in diameter. The telescopes can be moved, and then set down on concrete pads for stability. They are located on Mt. Wilson, where pads have been arranged to give baselines varying from 4 to approximately 75 meters and oriented in various directions. Initial work, between 1988 and 2002, was done with two telescopes; the third telescope was added in 2003.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. H. Townes, E. H. Wishnow, "Interferometry at mid-infrared wavelengths: the ISI system", Proc. SPIE 7013, Optical and Infrared Interferometry, 70130D (28 July 2008); doi: 10.1117/12.791197; https://doi.org/10.1117/12.791197
PROCEEDINGS
21 PAGES


SHARE
KEYWORDS
Stars

Telescopes

Visibility

Interferometry

Heterodyning

Infrared radiation

Mid-IR

RELATED CONTENT

Long-baseline interferometer for the mid-infrared
Proceedings of SPIE (August 01 1990)
ISI: recent technology and science
Proceedings of SPIE (October 20 2004)
FLUOR fibered beam combiner at the CHARA array
Proceedings of SPIE (February 21 2003)

Back to Top