Translator Disclaimer
7 March 2003 UFTI: the 0.8 - 2.5 μm fast track imager for the UK infrared telescope
Author Affiliations +
Abstract
In 1996, it was proposed to build a near-infrared imager for the 3.8-m UK Infrared Telescope in Hawaii, to exploit the 1024 pixel format detectors that were then becoming available. In order to achieve a fast delivery, the instrument was kept simple and existing designs were reused or modified where possible. UFTI was delivered within 2.5 years of the project start. The instrument is based around a 1k Rockwell Hawaii detector and a LSR Astrocam controller and uses the new Mauna Kea optimized J,H,K filter set along with I and Z broad-band filters and several narrow-band line filters. The instrument is cooled by a CTI cry-cooler, while the mechanisms are operated by cold, internal, Bergelahr stepping motors. On UKIRT it can be coupled to a Fabry-Perot etalon for tunable narrow-band imaging at K, or a waveplate for imaging polarimetry through 1-2.5 μm; the cold analyzer is a Barium Borate Wollaston prism. UFTI was designed to take full advantage of the good image quality delivered by UKIRT on conclusion of the upgrades program, and has a fine scale of 0.09 arcsec/pixel. It is used within the UKIRT observatory environment and was the first instrument integrated into ORAC, the Observatory Reduction and Acquisition Control System. Results obtained during instrument characterization in the lab and over the last 3 years on UKIRT are presented, along with performance figures. UFTI has now been used on UKIRT for several hundred nights, and aspects of instrument performance are discussed.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Patrick F. Roche, Philip W. Lucas, Craig D. Mackay, Eli Ettedgui-Atad, Peter R. Hastings, Alan Bridger, Nicholas P. Rees, Sandy K. Leggett, Chris Davis, Alan R. Holmes, and Tony Handford "UFTI: the 0.8 - 2.5 μm fast track imager for the UK infrared telescope", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.460987; https://doi.org/10.1117/12.460987
PROCEEDINGS
12 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

HARPS3 for a roboticized Isaac Newton Telescope
Proceedings of SPIE (August 08 2016)
Focus and alignment using out of focus stellar images at...
Proceedings of SPIE (September 16 2010)
The Keck Cosmic Web Imager
Proceedings of SPIE (July 19 2010)
Gemini wavefront sensing subsystems
Proceedings of SPIE (February 03 2003)
Upgrade on 61 element adaptive optical system for 1.2 m...
Proceedings of SPIE (October 24 2004)
GREGOR Fabry-Pérot interferometer: status report and prospects
Proceedings of SPIE (September 23 2012)

Back to Top