ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
27
|
Thu Sep 16 10:02:47 2021 |
Jiri Smetana | General | General | Actuation Feedback Model and Noise | Here's the DAC voltage spectrum with
its associated RMS.
Also, for clarity, this model is |
|
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26
|
Wed Sep 15 09:15:21 2021 |
Jiri Smetana | General | General | Actuation Feedback Model and Noise | I've implemented a more extensive feedback
model that uses proper conversions between
metres, volts, counts etc. and includes all |
|
|
25
|
Thu Sep 9 20:42:34 2021 |
Paco | General | Design specs | Rerun HR coatings with n,k dispersion | [Paco]
Alright, I've done a re-optimization
targetting a wider T band around 2128 nm. |
|
|
24
|
Thu Sep 9 11:25:30 2021 |
Paco | General | Design specs | Rerun HR coatings with n,k dispersion | [Paco]
I've re-run the HR coating
designs for both ETM and ITM using interpolated |
|
|
23
|
Thu Aug 26 17:40:41 2021 |
Stephen | General | Suspension | Selecting MOS-style frame | [Koji, Stephen]
Kind of a silly post, and not very
scientific, but we are sticking to it. During |
|
|
22
|
Tue Aug 24 08:15:37 2021 |
Jiri Smetana | General | General | Actuation Feedback Model | I'm posting a summary of the work I've
done on the Lagrangian analysis of the Mariner
suspension design and a state space model |
|
|
21
|
Tue Aug 17 17:48:57 2021 |
Koji | General | Equipment | Crackle SW model | As a kickoff of the mariner sus cryostat
design, I made a tentative crackle chamber
model in SW. |
|
|
20
|
Fri Aug 6 04:34:43 2021 |
Koji | General | General | Theoretical Cooling Time Limit | I was thinking about how fast we can cool
the test mass. No matter how we improve the
emissivity of the test mass and the cryostat, |
|
|
19
|
Tue Jul 27 11:38:25 2021 |
Paco | General | Design specs | DOPO single pass PDC efficiency | Here is a set of curves describing the
single-pass downconversion efficiency in
the 20 mm long PPKTP crystals for the DOPO. |
|
|
18
|
Wed Jul 7 16:32:27 2021 |
Stephen | General | Equipment | Overall Dimensions for Mariner Suspension Test Chamber Concept | WIP - Stephen to check on new suspension
dimensions and fit into 40m chamber |
|
|
17
|
Wed Jun 30 16:21:53 2021 |
Stephen | General | Design specs | | [Stephen, Koji]
WIP - check layout of 60 cm suspension
in chamber at 40m, will report here |
|
|
16
|
Tue Jun 22 22:28:09 2021 |
Koji | General | Design specs | Test Mass wedge design | The
ETM wedge of 0.5deg will allow us to separate
the AR reflections. We will be OK with the |
|
|
15
|
Fri Jun 4 11:09:27 2021 |
Paco | General | Design specs | HR coating tolerance analysis | The HR coating specifications are:
ETM |
|
|
14
|
Fri May 7 17:50:31 2021 |
Nina Vaidya & Shruti Maliakal | General | Design specs | Arm Cavity Design 2021 update | Here are the final slides with all the
results on the Arm Cavity Design, please
review. |
|
|
13
|
Fri May 7 09:57:18 2021 |
Stephen | General | Equipment | Overall Dimensions for Mariner Suspension Test Chamber Concept | Koji, Stephen
Putting together Koji's design
work with Stephen's CAD, we consider |
|
|
12
|
Tue Apr 27 12:28:43 2021 |
Nina Vaidya & Shruti Maliakal | General | Design specs | Arm Cavity Design 2021 | Rana’s code: R_c = 57.3
-->New code with optimization:
sweeping through a range of R_c, using a |
|
|
11
|
Fri Apr 23 10:41:22 2021 |
Aidan | General | Design specs | 2 um photodiode requirements | MCT HgCdTe requirements: https://docs.google.com/spreadsheets/d/1lajp17yusbkacHEMSobChKepiqKYesHWIJ6L7fgr-yY/edit?usp=sharing
|
|
|
10
|
Fri Apr 2 19:59:53 2021 |
Paco | General | Design specs | Differential evolution strategies | Differential evolution strategies 'benchmarking'
for thin film optimization
Since
I have been running the ETM/ITM coatings |
|
|
9
|
Wed Mar 24 17:42:50 2021 |
Paco | General | Design specs | Silicon TM dichroic coatings for phase I | Yeah, the magnitudes are the inverse weighted
scalar costs (so they lie on the appropriate
relative scale) and indeed larger enclosed |
|
|
8
|
Wed Mar 24 17:36:46 2021 |
Paco | General | Design specs | Least common multiple stacks and varL cost | Update on ETM/ITM coating design;
-
Following what seemed like a good, intuitive
suggestion from Anchal, I implemented a parameter |
|
|
7
|
Wed Mar 17 21:24:27 2021 |
gautam | General | Design specs | Silicon TM dichroic coatings for phase I | I guess you have tried it already - but
does enforcing the stacks to be repeating
bilayer pairs of the same thickness fail |
|
|
6
|
Wed Mar 17 19:51:42 2021 |
Paco | General | Design specs | Silicon TM dichroic coatings for phase I | Update on ETM
New optima are
being found using the same basic code with
some modifications, which I summarize below; |
|
|
5
|
Fri Mar 5 11:05:13 2021 |
Stephen | General | Design specs | Feasibility of 6" optic size in CAD | 6" vs 4" optic size comparison
using CAD - worth hopping into the 3D geometry
using the link below, but also posting a |
|
|
4
|
Thu Mar 4 17:04:52 2021 |
Paco | General | Design specs | Silicon TM dichroic coatings for phase I | Have been using the 40m
Coatings repo code by Gautam (with some
modifications to make dichroic designs under |
|
|
3
|
Fri Jun 5 11:13:50 2020 |
Raymond | General | Heat Load | Steady state heat load example | Attached is a cartoon partial view into
the heat load experienced by the Mariner
assembly. |
|
|
2
|
Thu May 21 12:10:03 2020 |
Stephen | General | Resources | Ongoing Mariner Resources | Ongoing points of updates/content (list
to be maintained and added)
Mariner |
|
|
1
|
Thu May 21 11:51:44 2020 |
Koji | General | General | Mariner Elog Test | The first entry of the Mariner elog post |
|