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#Zemax file echelle spectrograph software#
Note the H-alpha line in emission (click on the image to enlarge)Ĭanon 40D, 9 x 300 s, 8′ SCT télescope (C.Buil) The eShel softwareĮasy to use, it is based on the AudeLA software ‘opensource’, written in Tcl/Tk, works under MS Windows (several languages available), it allows during the acquisitions of spectra, to remotely control the various units (injection unit and calibration unit).
#Zemax file echelle spectrograph Pc#
It has a fiber input on FC / PC connector to fix the 50 μm object fiber.ĭelta Sco spectrum (Be star). It covers the spectral range from about 450 to 700 nm with a resolution > 10000 (with an ATIK 460 Ex camera in 2×2 binning not included). The main module that generates the Echelle spectrum. Schematic diagram of an Echelle spectrograph (© Christian Buil) The Echelle spectroscope This gives the entire spectral in visible range on about twenty order (in the case of eShel).
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The spectrum obtained passes through a cross disperser that “cuts” the spectrum in several successive orders by occupying the entire surface of the sensor of the camera. This technique makes it possible to reach high spectral resolutions because it uses the diffraction orders > 20 of a grating. They both complement our expertise to bring you the best solution in echelle spectroscopy for astronomy !Ĭhoice of optical fibre has been made to increase radial velocities measurement accuracy and for a better confort in using the eShel. The software module has been written by Michel Pujol, an expert in Tcl/Tk and AudeLA platform. We designed the spectroscope with Christian Buil, a higly recognized optician expert. This practical experience helped us to design a robust and productive solution in the field. It is based on our strong experience in spectroscopy (with design and manufacturing of the Lhires III and Lhires Lite) and nights of observations including with MuSiCoS & Narval spectroscopes.