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Equipment requirements

Those alignment aids specific to WYFFOS are kept in the WYFFOS cupboard on the Nasmyth level in the WHT dome, other items (for example lasers) can be found in the ISIS cupboards.

  1. Three lasers, with 250mm rails, mounts and posts having translation and height adjustments. Lasers need to be set to 235mm above the optical table.
  2. Two table extensions. Clamps to fit rails to extensions.
  3. Three alignment posts (height set to 235mm).
  4. Three 50 50mm targets, perforated with a 2mm diameter hole at centre, with free standing mounts.
  5. ISIS grating (1200 lines mm tex2html_wrap_inline107 ).
  6. ISIS dummy grating.
  7. Two light sources -- white light and line emission.
  8. Paper targets.
  9. Templates for component baseplates.

In addition, you may need: Allen keys, steel rulers, internal micrometer, thread and a torch.