TITLE: 05/16 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:
Work is ongoing in HAM1 to finish up all the checks we need done before doors go on next week.
The RM/PM damping issues that we've been seeing (84427) are most likely due to the higher purge air in HAM1 since they had been working fine two days ago when the purge air had been turned way down, and yesterday and today when the purge air had been turned up, were not working. We'll be able to better confirm this on Monday during a time when we can have the purge air very low and there isn't any activity happening in HAM1. RM1, RM2, and PM1 have been put into SAFE for the weekend.
The LVEA is currently LASER HAZARD.
Sensor correction is on in the LVEA (SEI_ENV: LIGHT_MAINTENANCE_WINDY and SEI_CONF: NOBRSXY_WINDY).
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 14:52 | FAC | Kim | LVEA | YES | Tech clean | 15:40 |
| 15:28 | ISC | Sheila | LVEA | YES | Transitioning to laser hazard | 15:42 |
| 15:28 | VAC | Jordan | LVEA | YES | Purge air checks | 15:44 |
| 16:01 | ISC | Sheila | LVEA | YES | Turning off a sideband | 16:08 |
| 16:36 | ISC | Marc, Sheila | LVEA | YES | Turning on HV for HAM6 | 16:41 |
| 16:37 | VAC | Janos | LVEA | YES | Checking things | 16:45 |
| 17:10 | ISC | Sheila | LVEA | YES | Turning sidebands back on | 17:26 |
| 17:53 | ISC | Sheila, Elenna | LVEA | YES | Final beam checks in HAM1 | 20:13 |
| 20:04 | SEI | Michael, Shoshana | EY | n | Minor wiring on BRS | 20:47 |
| 20:14 | VAC | Jordan | MX | n | Vacuum measurements | 21:46 |
| 20:47 | PEM | Robert | LVEA | YES | Looking for scattered light in HAM1 | 21:57 |
| 21:46 | VAC | Jordan | LVEA | YES | Vacuum measurements | 21:57 |
| 21:55 | TCS | Tony & Mitchel | Mech room | N | Chiller water checks. | 22:06 |
| 22:07 | CDS | Oli, Marc | CER | YES | Checking out PM1 coil drivers | 22:14 |
| 22:16 | ASC | Sheila & Elenna | LVEA HAM1 | Yes | Final Beam Checks. | ongoing |
| 22:43 | VAC | Jordan | LVEA | YES | Turning HAM1 purge air down | 22:46 |
| 23:13 | VAC | Jordan | LVEA | YES | Turning purge air back up | 23:14 |
Just adding a note:
As of the end of the day, Sheila and I have left the sidebands OFF, and the HAM6 high voltage ON (per WP #12545).