ETMY BSC10, Vent Master = Betsy Weaver
https://dcc.ligo.org/E1500266

APPROVED work to be done in order of importance:

Remove charge from ETMy (Travis, Danny, Gary, Betsy, Kate, Calum, tester Arnaud)

Install VE ports to enable mounting of TMDS and new pumps (Gerardo, Kyle)

Add Krytox to beam diverters on TMS, additional QPD strain relief (Corey, Keita)

DCC Vent Documents referenced in this plan:

• E1201035-v17, "aLIGO Chamber Entry & Exit Procedures"  https://dcc.ligo.org/LIGO-E1201035
• M1100039, "Hanford Checklist - HAM Door Removal"  https://dcc.ligo.org/LIGO-M1100039
• M1300464-v4, "Procedure for preparing aLIGO IFO for pumpdown"  https://dcc.ligo.org/LIGO-M1300464

Additional Documentation:

• The ECR approving the use of Krytox LVP is E1400353
• The Beam Diverter assembly is described in E1100686-v3
• The ETM/ERM Gap discharge procedure is described in T1500101

SCHEDULE

FRI-MON early morning time permitting, June 12-15, 2015

1)    Turn cleanrooms on

2)    Clean area, door flange, and cleanroom

3)    Start staging of supplies and equipment

4)    Confirm dust monitor is working

MON, June 15, 2015

5)    Transition to LASER SAFE

6)    CDS: Control systems need to be up and running through vent – confirm that normal TUES CDS maint does not interfere with controls.

7)    Confirm purge air is on

8)    Close gate valves

9)    Vent BSC10

10)  Remove door – Review and follow M1100039 “ Hanford checklist – HAM Door Removal”

11)  VE work – installation of 2 ports

TUES, June 16, 2015

12)  Entry chamber checklist items: Pick up floor CC wafers.  Take particle counter measurements and record:

13)  Inspect optic – Calum, Kate, Travis, Betsy, Danny, Gary

14)  Transition to LASER HAZARD

15)  Perform TMS work

QPD strain relief, rebalance TS and check alignment

Krytox on BD

Take particle counter measurements and record:

16)  Transition to LASER SAFE

WED, June 17^th, 2015

17)  Discharge ETMy, noting details of measurements for alog, as per procedure T1500101.  Inspect all EQ stops at TM stage for proximity.  Take particle counter measurements throughout and record:

18)  SUS ETMy TF tests.

19)Chamber closeout – note, a truncated exit chamber checklist will be executed due to risk of recontamination of charge.

20)  Put door on, start pump down.

THUR, June 18, 2015

21)  Perform ESD/OL charge measurements.