Description of the Spectrographs

In Part I we describe echelle spectrographs in general, give details on the optical components of the UCL coudé echelle spectrographs, and then briefly describe detector options and provide information required to plan an observing run.

• Echelle Spectrograph Characteristics
  • General
  • Spectrum Format
  • Coudé Stability
• Hardware Specifications
  • Beam Rotator (UCLES only)
  • Calibration Lamps
  • TV Viewing
  • Slit/Image Slicer
  • Periscopes (UCLES only)
  • Focal Modifiers
  • Slit Filters
  • Shutters
  • Collimators
  • Hartmann Masks
  • Cross Dispersing Prisms (UCLES only)
  • Cross Dispersing Gratings (UHRF only)
  • Echelle Gratings
  • Cameras
• Detector Options
• Planning an Observing Proposal
  • System Throughput and Counting Rates
  • ECHWIND: Selecting the UCLES wavelength setup
  • Starting ECHWIND
  • Running ECHWIND