| DOI | Trouver le DOI : https://doi.org/10.1117/12.927442 |
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| Auteur | Rechercher : Reshetov, V.1; Rechercher : Herriot, G.1; Rechercher : Thibault, S.; Rechercher : Désaulniers, P.; Rechercher : Saddlemyer, L.1; Rechercher : Loop, D.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut Herzberg d'astrophysique du CNRC
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| Format | Texte, Article |
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| Conférence | Ground-Based and Airborne Instrumentation for Astronomy IV, July 1-6, 2012, Amsterdam, The Netherlands |
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| Sujet | Mechanical design; Modelica; Multi-domain modeling; Optical Bench; Optical Mounts; Opto-mechanical design; Radial velocity; Spectropolarimeters; Thermal budget; Thermal control; Thermal designs; Thermomechanical stability; Astronomy; Design; Infrared spectrographs; Instruments; Spectrographs; Thermoanalysis; Thermodynamic stability; Cryogenics |
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| Résumé | This paper presents an overview of the PDR level mechanical and opto-mechanical design of the cryogenic spectrograph unit of the nIR spectropolarimeter (SPIROU) proposed as a new-generation instrument for CFHT. The design is driven by the need for high thermo-mechanical stability in terms of the radial velocity (RV) of 1 m/s during one night, with the requirement for thermal stability set at 1 mK/24 hours. This paper describes stress-free design of the cryogenic optical mounts, mechanical design of the custom-build cryostat, mechanical design of the optical bench, and thermal design for 1 mK thermal stability. The thermal budget was calculated using lumped-mass model thermal analysis, implemented in Modelica multi-domain modeling language. Discussion of thermal control options to achieve 1 mK thermal stability is included. © 2012 SPIE. |
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| Date de publication | 2012 |
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| Maison d’édition | SPIE |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21269516 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | a8a6d3d1-4caa-44ed-934d-9ee0682f7004 |
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| Enregistrement créé | 2013-12-12 |
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| Enregistrement modifié | 2020-04-21 |
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