Total reduction of distorted echelle spectrograms: an automatic procedure
Abstract
A total reduction procedure, notable for its use of a computer-controlled microdensitometer for semi-automatically tracing curved spectra, is applied to distorted high-dispersion echelle spectra recorded by an image tube. Microdensitometer specifications are presented and the FORTRAN, TRACEN and SPOTS programs are outlined. The intensity spectrum of the photographic or electrographic plate is plotted on a graphic display. The time requirements are discussed in detail.
- Publication:
-
Applied Optics
- Pub Date:
- October 1975
- DOI:
- 10.1364/AO.14.002527
- Bibcode:
- 1975ApOpt..14.2527P
- Keywords:
-
- Computer Graphics;
- Data Reduction;
- Microdensitometers;
- Spectrograms;
- Computer Programs;
- Data Recording;
- Display Devices;
- Echelle Gratings;
- Fortran;
- Image Tubes;
- Photographic Plates;
- Signal Distortion;
- Tracing;
- Instrumentation and Photography;
- SPECTROSCOPY