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Title: Impact of Distortions on Fiber Position Location in the dark Energy Spectroscopic Instrument

Abstract

The Dark Energy Spectroscopic Instrument, to be located at the prime focus of the Mayall telescope, includes a wide field corrector, a 5000 fiber positioner system, and a fiber view camera. The mapping of the sky to the focal plane, needed to position the fibers accurately, is described in detail. A major challenge is dealing with the large amount of distortion introduced by the optics (of order 10% scale change), including time-dependent non-axisymmetric distortions introduced by the atmospheric dispersion compensator. Solutions are presented to measure or mitigate these effects.

Authors:
 [1];  [2];  [3];  [3];  [2];  [2];  [4];  [5];  [5];  [6];  [6]
  1. Fermilab
  2. UC, Berkeley, Space Sci. Dept.
  3. University Coll. London
  4. LBNL, Berkeley
  5. NOAO, Tucson
  6. Yale U.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1258782
Report Number(s):
FERMILAB-CONF-16-206-AE-CD
1469188
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Kent, Stephen, Lampton, Michael, Doel, A. Peter, Brooks, David, Miller, Tim, Besuner, Robert, Silber, Joe, Liang, Ming, Sprayberry, David, Baltay, Charles, and Rabinowitz, David. Impact of Distortions on Fiber Position Location in the dark Energy Spectroscopic Instrument. United States: N. p., 2016. Web.
Kent, Stephen, Lampton, Michael, Doel, A. Peter, Brooks, David, Miller, Tim, Besuner, Robert, Silber, Joe, Liang, Ming, Sprayberry, David, Baltay, Charles, & Rabinowitz, David. Impact of Distortions on Fiber Position Location in the dark Energy Spectroscopic Instrument. United States.
Kent, Stephen, Lampton, Michael, Doel, A. Peter, Brooks, David, Miller, Tim, Besuner, Robert, Silber, Joe, Liang, Ming, Sprayberry, David, Baltay, Charles, and Rabinowitz, David. 2016. "Impact of Distortions on Fiber Position Location in the dark Energy Spectroscopic Instrument". United States. doi:. https://www.osti.gov/servlets/purl/1258782.
@article{osti_1258782,
title = {Impact of Distortions on Fiber Position Location in the dark Energy Spectroscopic Instrument},
author = {Kent, Stephen and Lampton, Michael and Doel, A. Peter and Brooks, David and Miller, Tim and Besuner, Robert and Silber, Joe and Liang, Ming and Sprayberry, David and Baltay, Charles and Rabinowitz, David},
abstractNote = {The Dark Energy Spectroscopic Instrument, to be located at the prime focus of the Mayall telescope, includes a wide field corrector, a 5000 fiber positioner system, and a fiber view camera. The mapping of the sky to the focal plane, needed to position the fibers accurately, is described in detail. A major challenge is dealing with the large amount of distortion introduced by the optics (of order 10% scale change), including time-dependent non-axisymmetric distortions introduced by the atmospheric dispersion compensator. Solutions are presented to measure or mitigate these effects.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 1
}

Conference:
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