All of us in the control room / desk area heard a sudden whoosh of air a few minutes ago. It kind of sounded like a pressure washer or something. We determined that the northmost nitrogen bottle outside the front door was letting out all its gas.
It's a gazillion degrees outside (okay, only 91F, according to a google of "Caltech Weather"), and those bottles are in direct sun all day.
We are leaving the bottle as-is, since it seems like its has finished, and nothing else is happening.
Sujan got 40m specific basic safety training this morning.
Masayuki Nakano, a student of Seiji's from ICRR / U Tokyo, is visiting us here at the 40m lab for the next couple months.
He received 40m specific basic safety training this morning.
We had fire alarm tests and evacuation drills at 1:30pm yesterday. All flashers and horns are functioning unbearably loud and bright including clean assembly room.
Chris Couste, our new undergrad help received 40m specific, basic safety training yesterday.
Facilities just came by and cleaned the smoke detector that is above Steve's desk. It's next to an air vent, so I guess it collects dust more than a "typical" smoke detector.
All 40m laser safety glasses are cleaned and measured this morning. Bring your own safety glasses if you have to enter the 40m IFO room.
Glasses were washed in 1% Liquinox water solution and their transmission measured at 165 mW, 2 mm OD beam of 1064 nm
We had our annual safety inspection today. Our SOPs are outdated. The full list of needed correction will be posted tomorrow.
The most useful found was that the ITMX-ISCT ac power is coming from 1Y1 rack. This should actually go to 1Y2 LSC rack ?
Please test this so we do not create more ground loops.
Linus-1, Nodus and others ac cords can be moved over to new blank yellow extension cord with multiple recepticals.
Remove two red extension cords going to Smart UPS
Annual crane inspection is scheduled for 8-11am Monday, March 17, 2014
The control room Smart UPS has two red extension cords that has to be removed: Nodus and Linux1
KroneCrane Fred inspected and certified the 3 40m cranes for 2014. The vertex crane crane was load tested at fully extended position.
Last long extension cord removed from 1Y1 to ITMX-ISCT
The AC power strip at ITMX-ISCT is coming from wall L#26
Be aware that this may affect POP QPD and POP RF Thorlabs PD
Late adition: CHECK all viewport covers.
A, transparent Lexan sheet is protecting glass windows in a horizontal position
B, metal housing protection is required on each viewport except signal ports
C, signal ports should be shielded by optical table enclosure
We have to cover this window-camera with implosion proof cover or just remove it and blank it.
Question number 2: Do our vertically positioned windows with flip able covers require protective lexan ? NO 5-5-2014
Tektronix RECALL on TDS3000 or TDS300B oscilloscope BATTERIES TDS3BATB
This Lithium-Ion battery can be a fire hazard ! Remove battery pack and recycle it through Safety Office !
2014 surf students Nichin and Akhil received 40m specific basic safety training last week.
Andres Medina and Andrew "Harry" Hall received 40m specific safety training. They did general safety already and their laser safety training will be this after noon.
PSL, AP, ETMY and ETMX optical tables were scanned for stay beam.
TaraV - geology major undergrad - of Jenne's summer help received 40m specific basic safety training.
This is the third safety glasses that I found laying around in the IFO lab lately. Safety glasses must be worn ALL times in the IFO room!
This rule is essential for your protection! Please do not enter if you can not put up with this regulation!
Q and Steve will follow elog 10028 entry to prepare the vacuum system for safe reboot
Here's the sequence of the morning so far:
The IFO is still down, as the PMC won't lock without the rack power, and we haven't pinned down the shorting mechanism. We don't want the replacement sorensen to immediately blow when plugged in.
Smoking Sorensen could have triggered the smoke alarm!
Yesterday I called CIT Fire Protection Services very first to deactivate the sensors temporarily. The smoke alarm was turned back on right after the particle count dropped.
Their phone number is posted at the entry doors 104M and 104W as shown below.
Diego Bersanetti received 40m specific safety training today.
Katherine Dooley has received 40m specific basic safety training in the 40m lab
Safety audit went soothly. We thank all participients.
1, Bathroom water heater cable to be stress releived and connector replaced by twister lock type.
2, Floor cable bridge at the vacuum rack to be replaced. It is cracked.
3, Sprinkler head to be moved eastward 2 ft in room 101
4, Annual crane inspection is scheduled for 8am Marc 3, 2015
5, Annual safety glasses cleaning and transmission measurement will get done tomorrow morning.
Safety glasses were measured and they are all good. I'd like to measure your personal glass if it is not on this picture.
Konecranes' Fred inspected and load tested all tree cranes at with 450 lbs
Jessica Pena, Megan Kelly, Eve Chase and Ignacio Magana received 40m specific basic safety traning today.
Thursday morning I found the control room emergency exit not locked.
Please check the doors when leaving the lab , specially when you are the last one out.
We just had fire alarm trigged avacuation of the 40m lab.
It turned out that the CES building second floor sensor caused this action.
Alessandra Marrocchesi received 40m specific basic safety training yesteday.
Gautom has received 40m specific basic safety training today.
Yutaro Enamoto, visiting graduate student of Seiji received 40m specific basic safety training.
Please look around when working close to these five locations. Use flashlights or leave lights on.
These mechanial traps are HAZARDOUS !
No visitors or tours till Monday, Jan 11 2016
In the modern times, people use glue traps to catch rats instead of springs. They are less hazardous to people and don't spread rat fluid on the floor.
Pasadena fire marshal inspected the lab today. No violation was found.
Safety audit went smothly.
Crane inspection is scheduled for March 4
Safety glasses will be measured before April 1
The crane inspection is scheduled for this coming Friday from 8-12
Bob cleaned the safety glasses. They were sonicated in warm 2% Liquinox water for 10 minutes. Steve checked them by transmission measurement of 1064 nm at 150 mW
All 3 cranes inspected by professional and load tested with 450 lbs at max reach.
The PSL had one 1064 nm beam to be blocked around the north east side. The end enclosures are fine.
Hello, I am Varun Kelkar. I will be working at the 40m lab as a SURF student this summer with Eric Quintero on Audio processing for real time control system signals. This week I will mostly be working on implementing basic DSP C-code offline. Currently I am trying to write a code for noise whitening.
Varun has received 40m specific basic safety training today.
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.
Aakash Patil received 40m specific basic safety training.
Praful Vasiceddy received 40m specific basic safety training.
Our new graduate student Lydia received 40m specific safety training.
Visiting graduate student Teng Zhang from Glasglow received 40m specific safety training yesterday.
Ashley Fowler "high shool" student received basic 40m safety training and Lydia is her guarding angle.
The door was not locked this morning.
Please do not use this door if you can not close it!
Last person leaving the lab should check that the latch is cut by the strike plate.
This is one of those unsolved door lock acquisition problems. Its been happening for years.
Please ask facilities to increase the strength of the door tensioner so that it closes with more force.