| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
487
|
Mon May 19 11:49:57 2008 |
steve | Update | SUS | etmy oplev laser replaced | The 9 years old Uniphase HeNe was replaced
by a new JDSU 1103P
Power output ~3.5 mW, reflected light back |
|
|
488
|
Tue May 20 09:28:42 2008 |
steve | Bureaucracy | SAFETY | safety traning for 40m | Tara Chalernsongsak, new gradstudent for K.
Libbrecht was introduced to the basics of
the 40m operations. |
|
|
491
|
Thu May 22 11:21:45 2008 |
steve | Bureaucracy | SAFETY | early surf sudent | Caltech under grad Eric Mintun received the
40m safety training.
Now he has to read and sign SOP of laser |
|
|
502
|
Wed May 28 14:19:47 2008 |
steve | Update | PSL | kaleidoscope of psl | atm 1: scattering psl table optics from the
top of the output periscope f4, 60s @MOPA
3 W
|
|
|
504
|
Thu May 29 16:32:09 2008 |
steve | Update | SUS | etmy oplev is back | I relayed the optics for ETMY-oplev as shown
in pictures below.
The reflected beam goes directly to the qpd |
|
|
505
|
Thu May 29 16:49:49 2008 |
steve | Bureaucracy | Photos | Yoichi has arrived | Yoichi had his first 40m meeting. We welcomed
him and Tobin, who is visiting, by sugar
napoleons that
|
|
|
516
|
Wed Jun 4 10:18:52 2008 |
steve | Update | PSL | wedged SS beam trap | I moved the SS trap over to the psl table.
Texas super # 8 was used from the large shipment.
TXs#8 scattering measured as before, meaning |
|
|
523
|
Fri Jun 6 15:56:00 2008 |
steve | Bureaucracy | SAFETY | Yoichi received safety training | Yoichi Aso received 40m specific safety training. |
|
|
524
|
Fri Jun 6 16:10:51 2008 |
steve | Update | PSL | HEPA filters are running at 100% | The psl HEPA filters were turned up to run
at 100% to accommodate beam trap work on
Tuesday, June 3, 2008 |
|
|
528
|
Tue Jun 10 08:37:18 2008 |
steve | Update | PSL | beam trap is being tested | High power beam trap is being tested just
west of FSS area on psl enclosure.
|
|
|
529
|
Wed Jun 11 11:45:25 2008 |
steve | Update | PSL | ss trap works | The trap works well at 3 W level. No back
reflected beam coming out of the trap on
low power
|
|
|
550
|
Fri Jun 20 17:42:48 2008 |
steve | Update | PSL | SS trap scattering compared to black glass trap | Circular SS304 trap was compared to wedged
black glass trap.
|
|
|
581
|
Fri Jun 27 09:20:15 2008 |
steve | Frogs | PEM | dust particle count is up & alarm handler is on | This 3 years plot show the trend of seasons.
When outside air quality goes bad ( 0.5 micron
> 1 million ) the lab follows.
|
|
|
600
|
Mon Jun 30 08:59:23 2008 |
steve | Update | IOO | IOO-MC_DEMOD_LO is low | The alarm handler is beeping relentlessly:
asking for help in high partical count and
low demod signal |
|
|
608
|
Tue Jul 1 09:26:33 2008 |
steve | Update | Computers | RFM network is down | |
|
|
609
|
Tue Jul 1 10:15:22 2008 |
steve | Update | PSL | eventfull two days | The laser recovered from a short temp rise.
The MZ was aligned and realigned. The suspentions
were kicked up accidentally.
|
|
|
624
|
Wed Jul 2 15:14:42 2008 |
steve | Update | General | added beam traps | I placed baked razor beam trap after INJ_SM1
and flipper in the injection path on the
AP table
|
|
|
642
|
Mon Jul 7 16:30:08 2008 |
steve | Update | PSL | PSL-PEM 16 days trend | This morning the laser head temp was up to
20.3C because the laser chiller was overflowing.
I removed 700 cc water.
|
|
|
645
|
Tue Jul 8 08:16:56 2008 |
steve | Update | PSL | PMC problem | The PMC is unhappy. PMC auto locker is not
working.
DC output slider adjust has to be moved from |
|
|
646
|
Tue Jul 8 10:20:10 2008 |
steve | Update | PEM | HEPA turned on | It is specially important to run the PSL-HEPA
filters when inside counts is peaking at
30,000 counts
|
|
|
652
|
Wed Jul 9 15:04:22 2008 |
steve | Metaphysics | Photos | SURFs helping hands | Surf students are helping out with baffle
cleaning. |
|
|
659
|
Fri Jul 11 09:29:02 2008 |
steve | Update | PSL | the PMC still hangs up | Morning alarms:
PMC high voltage is railing, it's auto locker |
|
|
670
|
Tue Jul 15 09:47:09 2008 |
steve | Update | PEM | lab temps and particles | All air condtion units were serviced last
Friday.
AC filters are trying to control our particle |
|
|
672
|
Tue Jul 15 10:24:57 2008 |
steve | Update | PSL | PMC temp & pzt voltage | The PMC pzt HV was happy with no HEPA temp
stability.
Can we thermally insulate the pmc ? |
|
|
677
|
Wed Jul 16 09:27:17 2008 |
steve | Update | ALARM | PSL-FSS_RMTEMP alarm is false | Morning alarm sound is good for people who
does not drink coffee.
Our 40m alarm is on every morning.
|
|
|
688
|
Thu Jul 17 08:30:15 2008 |
steve | Update | PSL | PMC relocked manually | The PMC pzt HV and the servo gain adj. are
railing at max this morning
|
|
|
705
|
Mon Jul 21 10:00:42 2008 |
steve | Update | PEM | ifo room temp | Five years of temp trend with 5 C fluctuation.
The campus chilled water supply was upgraded
~ 1 year ago.
|
|
|
708
|
Mon Jul 21 15:52:22 2008 |
steve | Bureaucracy | SAFETY | fire alarms test | The fire alarm test and evacuation drill was
successfully completed at 13:45 Wednesday,
July 16, 2008
|
|
|
712
|
Tue Jul 22 09:24:17 2008 |
steve | Update | PSL | laser power | Laser power reality of 120 days |
|
|
716
|
Tue Jul 22 16:50:09 2008 |
steve | Metaphysics | Environment | professorial clean up of work bench | Atm1: is showing the spiritual satisfaction
after work bench clean up by the professor
himself.
|
|
|
790
|
Mon Aug 4 12:12:20 2008 |
steve | Configuration | VAC | the ifo is at atm | The 40m vac envelope was vented this morning.
P1 is at 760 Torr |
|
|
797
|
Tue Aug 5 10:23:00 2008 |
steve | Update | SUS | earthquake and venting effects | atm 1, EQ
atm 2, vent 7 days later: venting kicks optic
into place to be free,
|
|
|
831
|
Wed Aug 13 17:00:59 2008 |
steve | Configuration | SUS | BS sat amp removed | The PRM sat amp is broken. Ben is working
on it.
The BS sat amp was removed from the BS sus |
|
|
833
|
Thu Aug 14 10:26:45 2008 |
steve | HowTo | SUS | sus cable pin cheater for out of vac damping | The 40m D25 vacuum feed troughs give you a
mirror image pin count.
|
|
|
834
|
Thu Aug 14 11:39:06 2008 |
steve | Update | PEM | particle counter is out of order | The 40m ifo paricle counter sensor failed
last night. |
|
|
840
|
Fri Aug 15 14:12:31 2008 |
steve | Bureaucracy | SAFETY | safety glasses required | The MOPA shutter is opened,
the PSL enclosure is switched to bypass mode,
manual block removed from PMC,
|
|
|
843
|
Fri Aug 15 19:32:49 2008 |
steve | Configuration | VAC | pumpdown complete | I have just reached vacuum normal. The maglev
peaked at 49.8C body temp with aux fan on
at 3.2 Torr
|
|
|
845
|
Mon Aug 18 09:19:55 2008 |
steve | Summary | VAC | 11 days at atm | It took 11 days to fix earth quake triggered
sus problems of ITMX, SRM and PRM
Only ITMX north and BSC north vac doors were |
|
|
865
|
Thu Aug 21 10:24:20 2008 |
steve | Configuration | SAFETY | laser safe mode condition | The MOPA and PSL shutters are closed.
Manual beam blocks are in place.
Enclosure interlock is enabled.
|
|
|
866
|
Thu Aug 21 16:28:59 2008 |
steve | Configuration | SAFETY | safety glasses required | I just opened the MOPA shutter so PA is warming
up.
|
|
|
871
|
Fri Aug 22 16:06:29 2008 |
steve | Update | PEM | particle counter replaced, flowbenches & HEPAs checked | MetOne #2 counter was swapped in (on the top
of IOC, facing SW direction, at ~75 deg upwards)
with channel one size 0.3 micron and channel |
|
|
875
|
Mon Aug 25 10:23:53 2008 |
steve | HowTo | General | cable killer | Rack 1Y7 double violation:
BNC cables left to be jammed by door
|
|
|
876
|
Mon Aug 25 10:51:06 2008 |
steve | Update | PSL | psl headtemp is coming down | The laser water cooler was overflowing this
morning.
I removed 500 cc water from the chiller.
|
|
|
885
|
Tue Aug 26 09:58:59 2008 |
steve | Omnistructure | COC | ETMX is #03 | This is the picture of ETMX from the upper
south west viewport |
|
|
887
|
Tue Aug 26 15:06:16 2008 |
steve | Configuration | VAC | rga scan | Pumpdown 66 PRM-maglev vac normal -day 11
short form: pd66PRM-m-d11 |
|
|
901
|
Fri Aug 29 15:01:45 2008 |
steve | Update | PSL | MOPA_HTEMP in increasing | The laser chiller temp is 21.9C ( it should
be 20.0C )
Control room temp 73F ok, no obvious block
|
|
|
911
|
Tue Sep 2 10:09:03 2008 |
steve | Update | PSL | head temp is cooling down | The chiller was over flowing this morning.
800 cc of water was removed.
PSL-126MOPA_HTEMP peaked at 20.7 C (normal |
|
|
931
|
Fri Sep 5 08:34:03 2008 |
steve | Update | PSL | MZ locked | The MC is happy.
The MZ can be locked if you move the slider
by hand. |
|
|
933
|
Fri Sep 5 10:36:34 2008 |
steve | Update | PEM | thermostate setting changed | Some one changed the thermostat (old control
room ) setting behind 1Y6 from 73 to 79F
It should be in the elog.
|
|
|
935
|
Mon Sep 8 10:57:49 2008 |
steve | Update | IOO | the psl and mc are back to normal | The alarm handler is silent this morning.
This is almost unbelievably pleasant after
two mount of harassment.
|
|