| DOI | Resolve DOI: https://doi.org/10.1117/12.927442 |
|---|
| Author | Search for: Reshetov, V.1; Search for: Herriot, G.1; Search for: Thibault, S.; Search for: Désaulniers, P.; Search for: Saddlemyer, L.1; Search for: Loop, D.1 |
|---|
| Affiliation | - National Research Council of Canada. NRC Herzberg Institute of Astrophysics
|
|---|
| Format | Text, Article |
|---|
| Conference | Ground-Based and Airborne Instrumentation for Astronomy IV, July 1-6, 2012, Amsterdam, The Netherlands |
|---|
| Subject | 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 |
|---|
| Abstract | 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. |
|---|
| Publication date | 2012 |
|---|
| Publisher | SPIE |
|---|
| In | |
|---|
| Series | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| NPARC number | 21269516 |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | a8a6d3d1-4caa-44ed-934d-9ee0682f7004 |
|---|
| Record created | 2013-12-12 |
|---|
| Record modified | 2020-04-21 |
|---|
