| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
341
|
Tue Apr 16 17:24:56 2019 |
Koji | Optics | Configuration | OMC(004): E Mirror selection | We are going to use E6, E9, E11, and E14
for BS1, SM1, SM2, and SM3. They (and E18)
are all very similar. |
|
|
342
|
Tue Apr 16 21:16:11 2019 |
Koji | Optics | Characterization | OMC(004): PZT testing for spare OMC | After having dug into the past email, it
turned out that these wires were the ones
already replaced from the original teflonwires. |
|
|
345
|
Wed Apr 17 10:30:37 2019 |
Philip | Optics | General | OMC optical set-up day 1 | [Joe, Koji, Liyuan, Philip, Stephen]
Work done on 16.04.2019
|
|
|
346
|
Thu Apr 18 20:47:54 2019 |
Joe | Optics | | OMC initial alignment and locking | [Joe, Phillip, Koji, Stephen]
*draft post, please add anymore
info if I missed something* |
|
|
347
|
Fri Apr 19 09:21:07 2019 |
Philip | Optics | | Cleaning of OMC optics | ach[Joe, Phillip, Koji,
Stephen]
Work from 17.04.2019 |
|
|
349
|
Fri Apr 19 11:34:19 2019 |
Koji | Optics | | OMC initial alignment and locking | The spot on CM1 was found displaced by
3.4mm (horiz.) and 3.0mm (vert.)
in the upper right direction looking from |
|
|
350
|
Sat Apr 20 00:50:12 2019 |
Koji | Optics | Characterization | OMC(004): Spot positions | Similarly to OMC
ELOG 349 the spot positions after the
replacement of CM2 were measured (Attachment |
|
|
353
|
Tue Apr 23 10:21:12 2019 |
Joe | Optics | Configuration | Moving the spots to the centre of the curved mirrors | [Koji,Philip, Liyuan, Joe]
CM1:
We moved the curved mirrors to |
|
|
354
|
Wed Apr 24 13:58:51 2019 |
Joe | Optics | Characterization | OMC power budget and UV Epoxy Bonding of BS1 | [koji,philip,joe,liyuan,stephen]
need to add spot positions.
Mirrors: PZT11,PZT22, A14, A5 |
|
|
355
|
Thu Apr 25 15:05:19 2019 |
Joe | Optics | Characterization | Looking at PZT HOM spacing dependance and thinking about workflow | [koji, joe]
The template or glass breadboard
was wobbling, and we noticed that the caivty |
|
|
356
|
Wed May 1 15:40:46 2019 |
Koji | Optics | Characterization | OMC(004): Spot positions and the scattering | Tried a few things.
1. Replaced CM1 (PZT ASSY
#10=M21+PZT#22+C12) with PZT ASSY #7 (=M1+PZT#13+C13) |
|
|
357
|
Fri May 3 11:06:28 2019 |
Koji | Optics | Characterization | OMC(004): Spot positions and the scattering | Experiment on 5/1
- CM1 right knob was moved 1div (10um)
backward such that the spots were better |
|
|
359
|
Thu May 9 17:35:07 2019 |
Koji | Optics | General | Alignment strategy | Notes
on the OMC cavity alignment strategy
- x3=1.17 γ + 1.40 δ, x4=1.40 |
|
|
360
|
Thu May 9 18:10:24 2019 |
Koji | Optics | Characterization | OMC(004): Spot position scan / power budget | (Now the CCD image is captured as a movie
and the screen capture is easier!)
Various spot positions |
|
|
363
|
Mon May 20 19:53:17 2019 |
Koji | Optics | Configuration | DCPD high power test | We want to perform a damage test of OMC
DCPDs with high power beam. The OMC DCPD
is the 3mm InGaAs photodiodes with high quantum |
|
|
364
|
Wed May 22 07:31:37 2019 |
Koji | Optics | Configuration | Camera test (DCPD high power test) | C30665 (3mm) camera test. The camera was
Canon PowerShot G7X MkII. Exposure 1/15s,
F 5.6, ISO 125, MF (~the closest), no zoom. |
|
|
365
|
Thu May 23 01:42:46 2019 |
Koji | Optics | Characterization | C30665 high power test | An Excelitas C30665 PD with the
cap removed (SN07 in Case H slot #2) was
exposed to the beam with the optical power |
|
|
366
|
Thu May 23 23:27:38 2019 |
Koji | Optics | Characterization | IGHQEX3000 high power test | LaserComponents IGHQEX3000 (Cage
B2: Serial# B1-23) was exposed to the beam
with the optical power from 1.6mW to 332mW. |
|
|
367
|
Tue May 28 12:14:20 2019 |
Stephen | Optics | General | CM PZT Assembly Debonding of EP30-2 in Acetone | [LiyuanZ, StephenA]
Downs B119
Summary: |
8x |
|
369
|
Mon Jul 1 12:38:49 2019 |
Koji | Optics | Characterization | A and M prisms perpendicularity measurement | [Stephen, Koji]
The perpendicularity of
some of the A and M prisms were tested. |
6x |
|
370
|
Mon Jul 1 12:49:42 2019 |
Koji | Optics | Characterization | Scattering measurement of A and C mirrors | Liyuan's scattering measurement for
the A and C mirrors. |
|
|
371
|
Thu Aug 22 12:35:53 2019 |
Stephen | Optics | Characterization | Wedging of the debonded PZTs 2019 August | Wedge and thickness measurements of PZTs
12 and 13 took place after debonding and
cleaning - results are shown in the first |
|
|
372
|
Fri Aug 23 11:11:44 2019 |
shruti | Optics | Characterization | Finding the curvature bottom | I attempted to fit the data taken
by Koji of the beam spot precession at the
CCD in order to find the location of the |
|
|
373
|
Thu Aug 29 11:51:49 2019 |
shruti | Optics | Characterization | Wedging of the debonded PZTs - Calculation | Using the measurements of PZTs 12,13 taken
by Stephen, I estimated the wedging angle
and orientation following Section 2.3.1 of |
|
|
374
|
Thu Sep 5 15:40:42 2019 |
shruti | Optics | Configuration | PZT Sub-Assembly | Aim: To find the combinations
of mounting prism+PZT+curved mirror to build
two PZT sub-assemblies that best minimises |
|
|
378
|
Mon Sep 23 21:29:51 2019 |
Koji | Optics | General | OMC(004): PZT sub-assembly gluing (#9/#10) | [Stephen, Shruti, Koji]
We worked on the gluing of the
PZT sub-assy (#9 and #10) along with the |
|
|
381
|
Mon Sep 30 23:16:53 2019 |
Koji | Optics | General | OMC(004): PZT sub-assembly gluing (#9/#10) | Friday: [Stephen, Koji]
As the oven setting has qualified,
we brought the PZT assys in the air bake |
|
|
386
|
Fri Dec 6 00:55:25 2019 |
Koji | Optics | General | Beamdump gluing | [Stephen, Koji]
20 glass beamdumps were
bonded at the 40m cleanroom. |
6x |
|
18
|
Tue Aug 14 03:29:06 2012 |
Koji | Supply | General | Clean supply rack | Clean supplies & some cleaning tools
are located at the right side of the entrance.
The file cabinet there was moved to |
|
|
123
|
Fri May 10 09:33:22 2013 |
Koji | Supply | General | COMSOL simulation on the glass bracket stress | |
|
|
274
|
Thu Jan 19 20:57:53 2017 |
Koji | Supply | General | Purchase | Ordered:
Office Depot
v AA battery Qty. 24 |
|
|
275
|
Thu Feb 16 17:23:12 2017 |
Koji | Supply | General | Purchase |
BNC Patch Panel
8x
Amphenol Connex 112443 / Isolated BNC FEMALE
TO FEMALE BULKHEAD ISOLATED ADAPTER - 50 |
|
|
321
|
Thu Apr 4 20:07:39 2019 |
Koji | Supply | General | Purchase | == Office Depot ==
Really
Useful Box 9L x 6 (delivered) |
|
|
375
|
Wed Sep 18 22:30:11 2019 |
Stephen | Supply | General | EP30-2 Location and Status | Here is a summary of the events of the
last week, as they relate to EP30-2.
1) I lost the EP30-2 syringes that |
|
|
376
|
Wed Sep 18 23:16:06 2019 |
Stephen | Supply | General | Items staged at 40m Bake Lab for PZT Subassembly Bonding | The following items are presently staged
at the 40m Bake Lab (see photo indicating
current location) (noting items broght by |
|
|
384
|
Tue Oct 22 11:56:09 2019 |
Stephen | Supply | General | Epoxy Status update as of 22 October 2019 | The following is the current status of
the epoxies used in assembly of the OMC (excerpt
from C1900052) |
|
|
407
|
Fri Feb 5 07:40:37 2021 |
Stephen | Supply | General | OMC Unit 4 Build Machined Parts | OMC Unit 4 Build Machined Parts are currently
located in Stephen's office. See image
of large blue box from office, below. |
|
|
411
|
Wed Jul 7 14:21:50 2021 |
Stephen | Supply | General | OMC Unit 4 Build Machined Parts | More explicit insights into the inventory
for the Unit 4 build. Image of inventory
included below. |
|