@inproceedings{49070b838fd24d11815967f7fe7f79fc,
title = "Fireball multi object spectrograph: As-built optic performances",
abstract = "Fireball (Faint Intergalactic Redshifted Emission Balloon) is a NASA/CNES balloon-borne experiment to study the faint diffuse circumgalactic medium from the line emissions in the ultraviolet (200 nm) above 37 km flight altitude. Fireball relies on a Multi Object Spectrograph (MOS) that takes full advantage of the new high QE, low noise 13 μm pixels UV EMCCD. The MOS is fed by a 1 meter diameter parabola with an extended field (1000 arcmin2) using a highly aspherized two mirror corrector. All the optical train is working at F/2.5 to maintain a high signal to noise ratio. The spectrograph (R∼ 2200 and 1.5 arcsec FWHM) is based on two identical Schmidt systems acting as collimator and camera sharing a 2400 g/mm aspherized reflective Schmidt grating. This grating is manufactured from active optics methods by double replication technique of a metal deformable matrix whose active clear aperture is built-in to a rigid elliptical contour. The payload and gondola are presently under integration at LAM. We will present the alignment procedure and the as-built optic performances of the Fireball instrument.",
keywords = "Multi-object spectroscopy, Spectrograph, Ultraviolet",
author = "R. Grange and B. Milliard and G. Lemaitre and S. Quiret and S. Pascal and A. Orign{\'e} and E. Hamden and D. Schiminovich",
note = "Publisher Copyright: {\textcopyright} 2016 SPIE.; Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray ; Conference date: 26-06-2016 Through 01-07-2016",
year = "2016",
doi = "10.1117/12.2233267",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Marshall Bautz and Tadayuki Takahashi and {den Herder}, {Jan-Willem A.}",
booktitle = "Space Telescopes and Instrumentation 2016",
}