SUMMARY TABLE
Z_coarse order FWHM (Å) dL/dZ (Å) Zfine(8075-8225Å) FSR (Å)
plot -2 22.83 12.8 0.41308 ~ 1681 - 2600 363.6
23.83 12.3 0.39575 ~2500 - 3500 348.9
24.83 11.8 0.37981 ~3500 - 4500 335.4
plot +1
plot +3
TABLE NOTES
  1. The Zfine values listed above in computer units apply at the optical axis for the default instrument Zfine value of 4.10 entered into the CS-100.
  2. The free spectral range (FSR) and FWHM in Z-space at ~8200 Å are 866.5 and 31.0, respectively. These values do not depend on plate spacing. The former is accurate to 1% or better. The latter is for an optimized parallelism; values for individual setups may be higher by ~10-20% because of the precision limits of the parallelization procedure. Accordingly, the FWHM in wavelength space is only reproducible at the 10-20% level.
  3. Fractional orders are caused by small phase shifts due to the reflective coating on the etalon mirrors.


Z_coarse = -2
Z_fine = 4.10
Lamp: Kr + Xe
Wavelengths (Å); order # in [], weak lines in ():
  Kr 8776.75 [22.8]
  Ar 8819.41 [22.8]
  Kr 8508.88 [23.8]
(Click plot for postscript copy.)