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Proceedings Paper

The mechanics and cryogenics of GIANO-TNG
Author(s): S. Gennari; C. Del Vecchio; I. Mochi; E. Oliva; L. Origlia; R. Tomelleri; F. Rossettini; D. Milani; M. Liffredo; D. Tommasin; G. Roveta
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Paper Abstract

GIANO is a cryogenic cross-dispersed spectrometer whose optics consist of aspheric aluminum mirrors, glass flats, cross-dispersing prisms and a grating fixed onto a ~1.5×1.0 m aluminum bench. The primary aim of the project is to achieve the highest possible image quality and spectral stability essential for precise radial velocity measurements. The instrument also includes other observing modes which are obtained by inserting a flat mirror or a prism at different positions in the optical path. This flexibility is achieved without affecting the stability and performances of the primary, high resolution mode. We describe here the cryo-mechanical design which has been optimized to these purposes.

Paper Details

Date Published: 29 June 2006
PDF: 9 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 626940 (29 June 2006); doi: 10.1117/12.670338
Show Author Affiliations
S. Gennari, INAF - Osservatorio Astrofisico di Arcetri (Italy)
C. Del Vecchio, INAF - Osservatorio Astrofisico di Arcetri (Italy)
I. Mochi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
E. Oliva, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Telescopio Nazionale Galileo (Spain)
L. Origlia, INAF - Osservatorio di Bologna (Italy)
R. Tomelleri, Tomelleri s.r.l. (Italy)
F. Rossettini, Tomelleri s.r.l. (Italy)
D. Milani, Criotec Impianti s.r.l. (Italy)
M. Liffredo, Criotec Impianti s.r.l. (Italy)
D. Tommasin, Criotec Impianti s.r.l. (Italy)
G. Roveta, Criotec Impianti s.r.l. (Italy)

Published in SPIE Proceedings Vol. 6269:
Ground-based and Airborne Instrumentation for Astronomy
Ian S. McLean; Masanori Iye, Editor(s)

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