Update TH schedule after job delay on TM2 Febiad target. Everything should be back to schedule on last two targets. See attachments.

TM4 was disconnected at ITE this morning. It was moved to SHC  after. No alpha alarm issue has been happened during and after move. The ventilation pumping down procedure on ITE was fulfilled during the move.

TM4 was disconnected at ITE this morning. It was moved to SHC  after. No alpha alarm issue has been happened during and after move. The ventilation pumping down procedure on ITE was fulfilled during the move.

Chad and I did a leak check on TM4 HS line with new Ta target installed. Base leak rate 0.0xE-9 atm.cc/sec. base pressure 0.0XE-4.   splayed 2 helium to each VCR joints and did 10 seconds helium flush. No response on LD during the test. The HS line is leak free so far. It will be helium pressurized at TCS later.

All turbo-pumps are started. The pumping down is good so far.

70 psi helium ,2minutes to  TM4 HS line. LD base leak rate 0.0xE-9 atm.cc/sec. No leak.

The system works fine. All water signals to TM4 at TCS are normal. HV cover is installed on to TM4 at TCS.

TCS is vented. TM4 is disconnected and TCS.

David Wang and I accessed the NHC today to check if the proposed duct routing (IRH1618) will interfere with servicing or replacement of the TCS turbo pump.  A piece of plywood was placed in the future position of the NHC/TCS partition wall (IRH1609), and a ducting elbow was placed at the approximate position of the nearest elbow to the turbo pump.

David concluded that the ducting in the proposed location will not have any significant effect on replacement of the turbo pump, and he does not expect replacement will be difficult to perform after installation of the wall and NHC ducting.  Standing at floor level towards the east side of the TCS space and reaching upwards seemed to be the best way to reach the turbo pump flange bolts.  It was also noted that there was sufficient room in the TCS space for two workers to be in the area.

All ITE and TM4  turbo pumps are started. The east station pumping down is good so far.

Update TH schedules . See attachments

TCS will be vented tomorrow morning for TM2 moving.

Chad and I leak checked TM2 HS line with new UCx target installed. Helium spray  2 seconds on each joint and 10seconds flushing around target in SHC. LD base LR: 0.0XE-9atm.cc/sec, base pressure:0.0XE-4 torr. No response has been found on LD during check. The line is leak free.

All vacuum pumps have been started. Air ballast 50seconds on roughing pump. Everything is good  so far.

Interlock key  are returned back to B2 level.TM2 is ready for HV conditioning and heating up at TCS.

Argon venting on TCS and TM2 is processing

Argon venting is done.

All turbo pumps are started. Water system and water signals have been checked. Pumping down on ITW and TM2 is good so far.

All water circuits are by passed on the top of TM3. Water pumps and vacuum turbo- pumps are started. Everything is ready for TM3 camera sparking check.

A short between TM2 EE and bias is produced yesterday during tube heater ramp up.  Alex asked for an argon venting on ITW to see if the problem could be solved by venting and pumping down yesterday.  I set up argon venting system in electrical room and started the venting at 8:30 AM this morning.  It will take 5 hours to vent the ITW to 760 torr(mechanical gauge reading).  The venting system pressure is set as 2 torr. A pressure relieve valve is installed into ITW venting line to prevent station over venting. The argon bottle  valve in electrical room will be closed by isac opps after 5 hours venting.