| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
12074
|
Wed Apr 13 11:00:28 2016 |
Steve | Update | endtable upgrade | X endtable repopulation | ETMX optical table is grounded to ETMX
chamber through 1 Mohms
The doubling oven temp controller |
|
|
12082
|
Tue Apr 19 10:58:53 2016 |
Steve | Update | safety | safety scans at PSL & tables | The PSL had one 1064 nm beam to be blocked
around the north east side. The end enclosures
are fine. |
|
|
12084
|
Wed Apr 20 14:36:45 2016 |
Steve | Update | PEM | dusty lab | It is worth wiping table top covers. Use
isopropanol soaked lint free wipes.
|
|
|
12086
|
Thu Apr 21 15:12:38 2016 |
Steve | Update | VAC | RGA is not working |
|
|
|
12087
|
Fri Apr 22 13:58:13 2016 |
Steve | Update | PEM | leaky roof is fixed | Dan sealed the leak today.
|
|
|
12088
|
Mon Apr 25 11:07:06 2016 |
Steve | Update | SUS | spare SOS tower | Earth quake stops need viton tips.
Wirestandoffs are still aluminum. |
|
|
12089
|
Tue Apr 26 15:22:35 2016 |
Steve | Update | endtable upgrade | Cleaning ETMX vacuum dirty window | Gautom is progressing with the layout nicely.
The X-arm transmission window have not seen
cleaning for decades. This should be the |
|
|
12091
|
Wed Apr 27 09:05:10 2016 |
Steve | Update | General | AP viewport |
Sad situation |
|
|
12094
|
Wed Apr 27 15:04:47 2016 |
Steve | Update | endtable upgrade | Cleaning ETMX vacuum dirty window | It looks very promising.
|
|
|
12096
|
Thu Apr 28 08:49:47 2016 |
Steve | Update | PEM | possible noise sources schedule |
Building:
Campus (see attached Map)
|
|
|
12117
|
Sun May 15 19:48:08 2016 |
Steve | Update | VAC | run out of N2 | 3-4 hrs ago we run out of nitrogen. We
are back to Vacuum Normal
|
|
|
12119
|
Tue May 17 14:46:51 2016 |
Steve | Update | VAC | RGA scan at day 595 | We have good RGA scan now. There was no
scan for 3 months. |
|
|
12122
|
Thu May 19 16:29:20 2016 |
Steve | Update | endtable upgrade | Optical layout almost complete |
|
|
|
12133
|
Wed May 25 08:32:55 2016 |
Steve | Update | SUS | local EQ 3.5m | Local EQ 3.5 mag at 2:28 UTC May
24, 2016 Rancho Cucamonga, Ca.....no damage
|
|
|
12134
|
Wed May 25 11:51:40 2016 |
Steve | Update | safety | SURF 2016 safety |
|
|
|
12141
|
Tue May 31 16:52:58 2016 |
Steve | Update | safety | NONO | Please do not place anything on the top
of the cabinets that is not tied down. It
will end up on our head in an earth quake. |
|
|
12142
|
Wed Jun 1 09:06:38 2016 |
Steve | Update | LSC | New stands for TransMon/Oplev QPDs | Machined from I-beam 6061 T6 Aluminum 5"
x 0.5 x 3.25
|
|
|
12144
|
Wed Jun 1 15:01:56 2016 |
Steve | Update | SUS | wire standoffs update | There are some issues with 5 mm sapphire
prism Atm5. It will cause interference
between one of the prisms and the Side OSEM. |
|
|
12149
|
Fri Jun 3 14:24:13 2016 |
Steve | Update | SUS | local EQ 3.1 m | Local EQ 3.1 mag at Jun 2, 2016 11:06:16
PM UTC, Muscoy CA........no damage
Our STS should seen this shake. |
|
|
12157
|
Wed Jun 8 10:20:14 2016 |
Steve | Update | safety | SURF 2016 safety | Aakash Patil received 40m specific basic
safety training.
|
|
|
12165
|
Fri Jun 10 09:52:51 2016 |
Steve | Update | SUS | EQ 5.2 mag Borego Spring | EQ 5.2 mag at Jun 10, 8:04 am UTC,
Borego Spring, CA ~150 mi away.........no
obvoius damage, damping restored, MC is locking, |
|
|
12170
|
Mon Jun 13 09:08:17 2016 |
Steve | Update | PSL | PMC slow drift | The PMC transmission slow degration or
it's input beam is not stable.
|
|
|
12171
|
Mon Jun 13 10:01:58 2016 |
Steve | Update | SUS | ETMX jumps |
|
|
|
12174
|
Tue Jun 14 10:13:34 2016 |
Steve | Update | VAC | temporary N2 supply line | The drill room floor will be retiled Thursday,
June 16. Temporary nitrogen line set up will
allow emptying the hole area. |
|
|
12182
|
Wed Jun 15 10:19:10 2016 |
Steve | Configuration | CDS | GPS antennas... debugging | Visual
inspection of rooftop GPS antennae: |
6x |
|
12186
|
Thu Jun 16 08:52:14 2016 |
Steve | Update | General | illuminators turned off | PSL, BS, ITMY and ETMX the illuminators
were left on over night. |
|
|
12187
|
Thu Jun 16 11:10:17 2016 |
Steve | Update | SUS | spare ETMX optics preparation to be hanged |
D
Location |
|
|
12198
|
Mon Jun 20 08:26:56 2016 |
Steve | Update | PSL | AOM pictures | Good job Johannes and Subham.
|
|
|
12199
|
Mon Jun 20 09:36:10 2016 |
Steve | Update | SUS | EQ 3.1 m Big Bear Lake, CA | No suspention lost damping.
|
|
|
12200
|
Mon Jun 20 11:11:20 2016 |
Steve | Configuration | CDS | GPS receiver not resetting properly | I called https://www.endruntechnologies.com/pdf/USM3014-0000-000.pdf
and they said it's very likely just needs
a software update. They will email Jamie |
|
|
12209
|
Tue Jun 21 14:12:10 2016 |
Steve | Update | PEM | vacuum envelope wiped | I wiped down the cranes with wet towel
and Mario our janitor did the chamber tops
with the tubes. |
|
|
12216
|
Mon Jun 27 15:26:03 2016 |
Steve | Omnistructure | ALARM | fire alarm test | The fire alarm came on around 15:05
for about 2-3 minutes. We all left
the lab and counted heads. I called |
|
|
12217
|
Mon Jun 27 15:47:17 2016 |
Steve | Update | General | QPR clean room gloves | I got some
QPR Nitrile gloves. They are LIGO approved.White
nitrile gloves are naturally anti-static- |
|
|
12218
|
Tue Jun 28 09:14:27 2016 |
Steve | Update | SUS | ETMX optics preparation to be rehanged | Given the effect on the contrast defect,
the consensus at the meeting Wednesday 6-22
was that we should continue to use the existing |
|
|
12226
|
Wed Jun 29 08:20:04 2016 |
Steve | Update | SUS | First Contact shelf life |
We'll follow LIGO policy:
Our
policy is to use first contact within 1 year
of purchase for use in the interferometers. |
|
|
12227
|
Wed Jun 29 14:32:22 2016 |
Steve | Update | SUS | how to remove epoxy from optics |
Hi Steve -
|
|
|
12228
|
Wed Jun 29 15:34:00 2016 |
Steve | Update | safety | SURF 2016 safety | Praful Vasiceddy received 40m specific
basic safety training.
|
|
|
12229
|
Wed Jun 29 16:02:29 2016 |
Steve | Update | SUS | ETMX beam baffle | In the attached photo from 2012, one can
see the installed black glass baffle. According
to the drawings (LIGO-DNNNXXX) this one has |
|
|
12231
|
Thu Jun 30 10:03:16 2016 |
Steve | Update | SUS | how to remove epoxy from optics | Proposed Acetone soak dish for SOS epoxy
softening.
It has good acces through 5" |
|
|
12237
|
Fri Jul 1 09:20:44 2016 |
Steve | Update | VAC | vent 78 | VENT
OBJECTIVES:
1, Fix ETMX sus "jump issue" |
|
|
12238
|
Fri Jul 1 15:48:10 2016 |
Steve | Update | VAC | vent 78 at 710 Torr | I just disconnected the 6th instrument
grade air cylinder from the vacuum envelope
at 720 Torr. Now it will reach equilibrium |
|
|
12241
|
Tue Jul 5 09:25:31 2016 |
Steve | Update | SUS | how to remove epoxy from optics | Glass soaking dish with teflon guides.
|
|
|
12248
|
Wed Jul 6 08:34:00 2016 |
Steve | Update | VAC | RGA scan at day 639 | The last RGA scan of this pumpdown 78
Pressure plot of 640 days long
pd 78 |
|
|
12249
|
Wed Jul 6 09:34:26 2016 |
Steve | Update | General | PRM sensing voltage LR | Yesterday Q noticed that PRM_sensor_LR
was 0.098V This actually went to ~
zero on 7-3 |
|
|
12250
|
Wed Jul 6 10:58:07 2016 |
Steve | Update | VAC | vent 78 valve configuration | Vacuum Status: Chamber Open
All chamber annuloses are vented.
Vac Monitor screen is not communicating with |
|
|
12264
|
Thu Jul 7 09:13:54 2016 |
Steve | Update | SUS | SOS gluing fixture | Atm 1,
It's right arm is perfect.
Atm 3-4, The left one has bended |
|
|
12311
|
Tue Jul 19 15:16:43 2016 |
Steve | Update | safety | safety training | Our new graduate student Lydia received
40m specific safety training. |
|
|
12312
|
Tue Jul 19 15:30:08 2016 |
Steve | Update | General | HEPA dryer and dust | I set up a simple HEPA filter dryer to
dry your clean room garment before
you can put it away into your storage box. |
|
|
12314
|
Wed Jul 20 11:39:07 2016 |
Steve | Update | VAC | vent 78 day 20 | RGA background scan
|
|
|
12315
|
Wed Jul 20 13:58:55 2016 |
Steve | Update | SUS | SUS damping out of vac chamber | Cheater
cable to be used in clean room pitch
gluing alingment. |
|