The NEID precision radial velocity spectrometer

optical design of the port adapter and ADC

Christian Schwab*, Ming Liang, Qian Gong, Chad Bender, Cullen Blake, Samuel Halverson, Daniel Harbeck, Fred Hearty, Emily Hunting, Kurt P. Jaehnig, Sarah E. Logsdon, Suvrath Mahadevan, Michael W. Mcelwain, Andrew J. Monson, Jeffrey W. Percival, Jayadev Rajagopal, Lawrence Ramsey, Paul M. Robertson, Arpita Roy, Fernando Santoro & 6 others Michael P. Smith, Ryan C. Terrien, Erik Timmermann, Phil Willems, Marsha J. Wolf, Jason Wright

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

2 Citations (Scopus)


NEID is a new extreme precision Doppler spectrometer for the WIYN telescope. It is fiber fed and employs a classical white pupil Echelle configuration. NEID has a fiber aperture of only 0.92" on sky in high-resolution mode, and its tight radial velocity error budget resulted in very stringent stability requirements for the input illumination of the spectrograph optics. Consequently, the demands on the fiber injection are challenging. In this paper, we describe the layout and optical design of the injection module, including a broadband, high image quality relay and a high-performance atmospheric dispersion corrector (ADC) across the bandwidth of 380 - 930 nm.

Original languageEnglish
Title of host publicationGround-based and Airborne Instrumentation for Astronomy VII
EditorsChristopher J. Evans, Luc Simard, Hideki Takami
Place of PublicationBellingham, Washington
Number of pages9
ISBN (Electronic)9781510619586
ISBN (Print)9781510619579
Publication statusPublished - 9 Jul 2018
EventGround-based and Airborne Instrumentation for Astronomy VII 2018 - Austin, United States
Duration: 10 Jun 201814 Jun 2018

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceGround-based and Airborne Instrumentation for Astronomy VII 2018
CountryUnited States


  • Acquisition
  • Atmospheric Dispersion Corrector
  • Doppler technique
  • Echelle
  • Fiber injection
  • Guiding
  • Radial Velocities
  • Spectrograph

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