Reports until 08:56, Wednesday 08 June 2011
X1 SEI
corey.gray@LIGO.ORG - posted 08:56, Wednesday 08 June 2011 - last comment - 08:44, Wednesday 22 June 2011(892)
Update On BSC Assembly Work

(Corey, Eric, Fabrice, Greg, Jeff, Jim, Mitch, Myron, Sebastian, Vincent, et. al.)

It's been a while since progress has been posted, but tons of work has occurred; so here's a rough summary of the main assembly points of the last week or two.

BSC ISI#1

Notes:  The L4C's & GS13's we recently received from LLO had noticeable dark powder/marks on them (believe this is the typical Aluminum Oxide we've seen before).

WHAT'S NEXT ON #1:  Goal is to float the assembly today (which means tossing lots of mass on the Assembly!), and hopefully start some testing soon (Vincent could atleast play with the Horizontal GS13's)

Circuit Overload?

We have been overloading one of the electrical circuits in the Staging Building (noticed this when we hooked up Rai's helicoil machine and vacuum).  When this circuit trips, it would shut every thing on this circuit down:  including both the BSC/HAM Test Stand AND SUS Test Stand (!!!).  Several times Vincent had to deal with losing all of his work and it would generally take a few hours to get everything back on-line. 

I believe there are the two plugs which are on the wall with the circuit in question.  Do not plug anything into these circuits which could overload the system (i.e. vacuum for example).  Perhaps we should put up some signs, or tape over the plugs, or have some killer moths guard the plugs (more on them below).

BSC ISI#2
Roughly 75% done with helicoiling Optics Table

Staging parts for this assembly

Attack Of The Moths (& Tropical Temperatures)

Over the last month or so, we've noticed a deluge of moths within the cleanroom area of the Staging Building (attached is a photo of a pile of dead ones on the floor).  They've been spotted inside and outside of our big cleanrooms (and we found a dead one on a large BSC plate under a cleanroom cloth cover!).  This is just to note if we come across any questionable particulates.

On Monday it was downright tropical in the Staging Building (can't remember but it was in the mid to high 80s).  John was able to give us tolerable temperatures by the afternoon (perhaps the moths like warm weather & learned how to futz with our thermostat!)

Images attached to this report
Comments related to this report
corey.gray@LIGO.ORG - 08:44, Wednesday 22 June 2011 (960)

Shims Used For Locker Installation

(this is from email from Sebastian)

. Shim thickness for the lockers between stage0-1 (big lockers) :

Corner 1 : 0.127"
Corner 2 : 0.125"
Corner 3 : 0.127"


. Shim thickness for the lockers between stage1-2 (small lockers) :

Corner 1 : 0.126"
Corner 2 : 0.122"
Corner 3 : 0.130"