| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8134
|
Thu Feb 21 21:12:42 2013 |
Koji | Update | VAC | pumpdown at 230 Torr | [Rana, Yuta, Koji]
21:05 at the pressure of 10torr
V3 closed. RV1 manually closed. RPs |
|
|
8135
|
Fri Feb 22 08:01:25 2013 |
Steve | Update | VAC | pumpdown continuous |
Pump
down is restarted after 10.5 hrs stop overnight. |
|
|
8136
|
Fri Feb 22 11:12:16 2013 |
Steve | Update | VAC | pumpdown completed | IFO P1 pressure is 1
mTorr. It is ready for high power light.
The Maglev took over the pumping |
|
|
8155
|
Mon Feb 25 08:22:03 2013 |
Steve | Update | VAC | pumpdown at day 4 | All normal, IFO pressure 1.5e-5 Torr
RGA is pumped by TP-3 in back ground
mode. |
|
|
8206
|
Fri Mar 1 14:50:36 2013 |
Steve | Update | VAC | pumpdown day 8 | Atm1, RGA background scan with TP3
pumping at day 7
Atm2, IFO CC1 = 1.1e-5 |
|
|
8231
|
Tue Mar 5 14:59:32 2013 |
Steve | HowTo | VAC | dry-forepump replaced | TP3 turbo pump's dry-foreline pump was
replaced.
How to do it: |
|
|
8238
|
Wed Mar 6 08:40:03 2013 |
Steve | Update | VAC | first scan of this pumpdown | Pumpdown 75 - Maglev - day 12
Precondition: 66 days at atm, installed
TIP-TILTs with coils that replaced |
|
|
8311
|
Tue Mar 19 17:00:14 2013 |
Steve | Update | VAC | large window quote of Cascade | Optical quality 6.5" OD window specs
and quotes for vacuum view ports and optical
table enclosure are on the 40m wiki_ Aux |
|
|
8664
|
Mon Jun 3 09:46:40 2013 |
Steve | Update | VAC | RGA scan at day 100 | Vacuum normal condition at pumdown
day 100
|
|
|
8847
|
Mon Jul 15 14:12:15 2013 |
Steve | Update | VAC | RGA scan at day 144 | Pumpdown 75, vacuum normal condition
at day 144
|
|
|
8904
|
Tue Jul 23 08:21:31 2013 |
Steve | Update | VAC | Vent has started |
Thanks for the good preparation.
IFO pressure P1=20 Torr |
|
|
8907
|
Tue Jul 23 14:00:03 2013 |
Steve | Update | VAC | the vent is completed | The 40m IFO has reached atmospher
in 5 hours. It is ready to open chamber condition.
The RGA is pumped with the maglev. |
|
|
8914
|
Tue Jul 23 22:55:13 2013 |
Jenne | Update | VAC | BS, ITMY doors to be opened in the morning | We will open the BS and ITMY doors first
thing tomorrow morning. I plan to try to
be in around 9 am. The first order of business |
|
|
8915
|
Wed Jul 24 10:35:41 2013 |
Steve | Update | VAC | BS, ITMY doors are removed |
|
|
|
8933
|
Mon Jul 29 16:04:40 2013 |
Steve | Update | VAC | AC removed | Manasa, Eric, Evan, Koji and Steve,
Access connector removed in order
to complete alignment. Light aluminum with |
|
|
8934
|
Mon Jul 29 16:15:13 2013 |
Koji | Update | VAC | AC removed | Prior to the access connector removal,
Manasa and I aligned the IFO mirrors.
The arms were locked and aligned by |
|
|
8946
|
Wed Jul 31 10:27:00 2013 |
Steve | Update | VAC | instrument grade air is discontinoued | We have been using Air Liquide Instrument
Grade Air for venting the 40m vacuum envelope.
It is no longer available. |
|
|
8963
|
Mon Aug 5 10:50:48 2013 |
Steve | Update | VAC | RGA background | RGA background at day 12 of this
vent . The maglev is pumping on the rga through
VM2 |
|
|
8970
|
Tue Aug 6 10:06:29 2013 |
Steve | Update | VAC | Pumpdown is at 500Torr | The pumpdown has started at 8:38am
Manasa was here to confirm good alignment
of the IFO |
|
|
8973
|
Tue Aug 6 16:45:31 2013 |
Steve | Update | VAC | Pumpdown is completed | IFO P1=1mT PSL shutter is opened
|
|
|
8976
|
Wed Aug 7 10:51:49 2013 |
Steve | Update | VAC | Pumpdown at 26hrs | Cold cathode gauge CC1 -h (horizontal)
just coming on 9.2e-5 Torr
P2 is the fore line pressure of the |
|
|
8978
|
Wed Aug 7 15:36:29 2013 |
Steve | Update | VAC | TP2 drypump replaced |
TP2's fore line - dry pump
replaced at performance level 600 mTorr after |
|
|
8984
|
Thu Aug 8 07:57:23 2013 |
Steve | Update | VAC | pumpdown at 48 hrs |
|
|
|
8985
|
Thu Aug 8 10:31:28 2013 |
Steve | Update | VAC | few reminders of this vent | 1, Vacuum envelope grounds must be
connected all times! After door removal
reconnect both cables immediately. |
|
|
9011
|
Wed Aug 14 08:24:20 2013 |
Steve | Update | VAC | pumpdown at day 8 |
|
|
|
9017
|
Fri Aug 16 09:35:18 2013 |
Steve | Update | VAC | Vacuum Normal state recognition is back |
|
|
|
9029
|
Mon Aug 19 11:12:54 2013 |
Steve | Update | VAC | RGA scan at day 13 |
|
|
|
9084
|
Wed Aug 28 11:23:41 2013 |
Steve | Update | VAC | crane repair sheduled |
|
|
|
9085
|
Wed Aug 28 15:41:42 2013 |
Steve | Update | VAC | RGA scan at day 23 | Valve configuration: Vacuum Normal
pd76-m-d23
|
|
|
9111
|
Thu Sep 5 10:47:58 2013 |
Steve | Update | VAC | vertex crane folding issue |
[Fred Goldbar, Mike Gerfen,
Dennis Coyne and Steve] |
|
|
9115
|
Fri Sep 6 09:27:10 2013 |
Steve | Update | VAC | 31 days after pumpdown |
|
|
|
9117
|
Mon Sep 9 15:33:06 2013 |
Steve | Update | VAC | vertex crane repair is scheduled |
|
|
|
9119
|
Tue Sep 10 09:18:22 2013 |
Steve | Update | VAC | dry pump is getting loud |
TP3 foreline's dry pump is
getting noisier and noisier. Turbo |
|
|
9120
|
Tue Sep 10 15:43:01 2013 |
Steve | Update | VAC | TP3' dry pump is replaced |
|
|
|
9129
|
Mon Sep 16 10:57:11 2013 |
Steve | Update | VAC | RGA scan at day 41 |
|
|
|
9139
|
Wed Sep 18 14:57:12 2013 |
Steve | Update | VAC | vertex crane folding arm removed | The folding beam removed as shown.
Two man supporting it while I hammering it
out. Pin was dry and it gulled into supporting |
|
|
9146
|
Fri Sep 20 16:37:30 2013 |
Steve | Update | VAC | vertex crane folding arm is back on |
|
|
|
9173
|
Mon Sep 30 08:53:22 2013 |
Steve | Update | VAC | vertex crane repair schedule has changed |
|
|
|
9185
|
Wed Oct 2 14:25:39 2013 |
Steve | Update | VAC | vertex crane is still out of order |
The smoke alarms were turned off
and surrounding areas were covered with plastic. |
|
|
9223
|
Wed Oct 9 11:48:10 2013 |
Steve | Update | VAC | RGA scan at day 65 |
Valve configuration: Vacuum
Normal |
|
|
9359
|
Thu Nov 7 11:19:04 2013 |
Steve | Update | VAC | crane work POSTPONED to Monday |
|
|
|
9372
|
Wed Nov 13 08:46:03 2013 |
Steve | Update | VAC | vertex crane repair completed |
|
|
|
9424
|
Fri Nov 22 16:32:08 2013 |
Steve | Update | VAC | RGA scan at day 108 |
|
|
|
9467
|
Fri Dec 13 16:34:20 2013 |
Steve | Update | VAC | PS will be replaced next week |
|
|
|
9506
|
Fri Dec 20 20:04:01 2013 |
Steve | Update | VAC | power supply replaced with a short vent |
|
|
|
9508
|
Fri Dec 20 23:00:41 2013 |
Koji | Update | VAC | power supply replaced with a short vent | I'm leaving the 40m now. IFO is aligned. Everything
look good. |
|
|
9510
|
Sat Dec 21 10:53:35 2013 |
Steve | Update | VAC | power supply replaced with a short vent-pumpdown completed | The recovery- pumpdown reached valve configuration
vacuum normal at 20 hours, cc1 7.7e-6 Torr
|
|
|
9514
|
Thu Jan 2 10:50:24 2014 |
Steve | Update | VAC | vacuum monitor is still blank | The date is correct on this monitor.
Last stored RGA scan data Dec 20,
2013 |
|
|
9515
|
Thu Jan 2 13:35:06 2014 |
Koji | Update | VAC | vacuum monitor is still blank | We probably need to restart the machine,
but I didn't want to touch c1vac1 and c1vac2. |
|
|
9516
|
Fri Jan 3 11:18:41 2014 |
Steve | Summary | VAC | power supply replaced with a short vent |
|
|