Difference between revisions of "Lesedi HR Spectrograph (name TBD)"
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== Documentation == | == Documentation == | ||
* Add notes from Christian's emails here | * Add notes from Christian's emails here | ||
| − | |||
* Rough purchasing list from Chris' visit 03/2018. He can likely supply the prism, collimator, and fiber injection: | * Rough purchasing list from Chris' visit 03/2018. He can likely supply the prism, collimator, and fiber injection: | ||
$35k bench optics | $35k bench optics | ||
| Line 27: | Line 26: | ||
$3k fiber injection optics | $3k fiber injection optics | ||
$30k collimator/ADC/refocus mechanism | $30k collimator/ADC/refocus mechanism | ||
| + | |||
| + | == Detectors == | ||
| + | * We have gone through the SAAO CCD store, and there are 5 engineering CCDs from SALTICAM and RSS (e2V 44-82, 1k x 2k) that can be considered: | ||
| + | {| class="wikitable" border="1" | ||
| + | |- | ||
| + | ! Serial No. | ||
| + | ! Coating | ||
| + | ! Failure | ||
| + | ! QE (350,400,500,650,900,1000 nm) | ||
| + | ! Located | ||
| + | |- | ||
| + | | 01394-08-01 | ||
| + | | astrobroadband | ||
| + | | fullwell 129k (vs. 150) | ||
| + | |54,70,78,75,45,10 | ||
| + | |?? | ||
| + | |- | ||
| + | |01394-21-01 | ||
| + | |coated | ||
| + | |CTE 99.9985 | ||
| + | |16,39,65,97,60,13 | ||
| + | |in lab | ||
| + | |- | ||
| + | |01451-16-02 | ||
| + | |coated | ||
| + | |CTE 99.977 | ||
| + | |13,35,68,86,54,10 | ||
| + | | in lab | ||
| + | |- | ||
| + | |01502-15-01 | ||
| + | |coated | ||
| + | |low level structure @ 350nm | ||
| + | |15,44,27,75,60,13 | ||
| + | |in lab | ||
| + | |- | ||
| + | |04484-03-02 | ||
| + | | AR coated | ||
| + | |low QE (3%) at 400 nm | ||
| + | |41,67,80,80,53,10 | ||
| + | |in lab | ||
| + | |-} | ||
Latest revision as of 08:47, 5 April 2018
Lesedi HRS Project Wiki
- This wiki is for construction of a high-resolution spectrograph on the 1-m Lesedi telescope in Sutherland. We anticipate future wikis for the user manual and for technical support.
- The SAAO and Christian Schwab (Macquarie Univ. and AAO) are collaborating on the project.
- The instrument is based on a design that Christian modified from NEID, an innovative HRS for use on the 3.5-m WIYN (https://neid.psu.edu/). We are hoping to reach a few m/sec accuracies for radial velocity measurements on Lesedi.
Project Team
Remote Expert & Collaborator: Christian Schwab (Macquarie U./AAO)
Instrument PI: Hannah Worters
Project Sponsor/Co-I: Amanda Sickafoose
Co-Is/Postdocs/Student: Nic Erasmus, others?
Local Expert Consultant: Lisa Crause
Mechanical Design:James O'Connor (oversight), Egan Loubser, Craig Sass
Software Engineers: Carel van Gend, Briehan Lombaard
Documentation
- Add notes from Christian's emails here
- Rough purchasing list from Chris' visit 03/2018. He can likely supply the prism, collimator, and fiber injection:
$35k bench optics $55k Echelle grating $3k fiber injection optics $30k collimator/ADC/refocus mechanism
Detectors
- We have gone through the SAAO CCD store, and there are 5 engineering CCDs from SALTICAM and RSS (e2V 44-82, 1k x 2k) that can be considered:
| Serial No. | Coating | Failure | QE (350,400,500,650,900,1000 nm) | Located |
|---|---|---|---|---|
| 01394-08-01 | astrobroadband | fullwell 129k (vs. 150) | 54,70,78,75,45,10 | ?? |
| 01394-21-01 | coated | CTE 99.9985 | 16,39,65,97,60,13 | in lab |
| 01451-16-02 | coated | CTE 99.977 | 13,35,68,86,54,10 | in lab |
| 01502-15-01 | coated | low level structure @ 350nm | 15,44,27,75,60,13 | in lab |
| 04484-03-02 | AR coated | low QE (3%) at 400 nm | 41,67,80,80,53,10 | in lab |
