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Proceedings Paper

The integral field unit for Echellette Spectrograph and Imager at Keck II
Author(s): A. I. Sheinis
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Paper Abstract

We report on the design, development and commissioning of an Integral Field Unit (IFU) that has been built for the Echellette Spectrograph and Imager (ESI) at the W.M. Keck Observatory. This image slicer-based IFU, which was commissioned in the spring of 2004 covers a contiguous field of 5.65 x 4.0 arcseconds in 5 slices that are 1.13 arcseconds wide. The IFU passes a spectral range of 0.39-1.1 um with a throughput of between 45% and 60% depending on wavelength and field position. The IFU head resides in an ESI slit mask holder, so that ESI may be converted to the IFU mode remotely by selecting the appropriate slit mask position. This IFU is the first of a family of designs for the spectrograph, providing a range of field-coverages and dispersions.

Paper Details

Date Published: 29 June 2006
PDF: 9 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 626936 (29 June 2006); doi: 10.1117/12.673297
Show Author Affiliations
A. I. Sheinis, Univ. of Wisconsin, Madison (United States)

Published in SPIE Proceedings Vol. 6269:
Ground-based and Airborne Instrumentation for Astronomy
Ian S. McLean; Masanori Iye, Editor(s)

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