NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Designing Echelle SpectrographsPerformance 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.
Document ID
19870000126
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Dantzler, A.
Date Acquired
August 13, 2013
Publication Date
March 1, 1987
Publication Information
Publication: NASA Tech Briefs
Volume: 11
Issue: 3
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
GSC-13009
Accession Number
87B10126
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available