Performance numbers and output maps computed from inputs supplied by user. Echelle Spectrograph Design Aid program (EGRAM) aids in design of spectrographic systems that utilize echelle/first-order crossdisperser combinations. Optical combination causes two-dimensional echellogram to fall on detector. Describes echellogram with enough detail to enable user to judge effectively feasibility of spectrograph design. By iteratively altering system parameters, desired echellogram achieved without making physical model. Calculates system parameters accurately to first order and compare favorably to results from raytracing techniques. EGRAM written in two versions. FORTRAN 77, and Microsoft BASIC A.
Designing Echelle Spectrographs
NASA Tech Briefs ; 11 , 3
1987-03-01
Miscellaneous
No indication
English
Spectrographs perform multidimensional spectroscopy
British Library Online Contents | 1993
|Spectrographs in space [3116-08]
British Library Conference Proceedings | 1997
|NTRS | 1986
|