TM#4 with UC#17 is now in the east target station.

Dan and I connected TM4 in ITE yesterday. It is pumping down at ITE now. Everything is fine so far.

Dan and I transferred 5 shielding blocks from ITW to ITE. The ITE is configured to take proton beam.

TM4 has been disconnected in ITE. No water line purge on HS and 3 water circuits are looped after disconnection. The HALCW system resistivity is stable before and after this disconnection.

TM#4 with SiC #34 has been moved to the east target station.

All ITE turbo pumps have been started since yesterday afternoon. The ITE and TM4 pumping down is good so far.

The ITE is configured to take proton beam.

 The HV enclosure and module connections were inspected by David and Anders on Wednesday 19th in an attempt to find any HV problems causing the high leakage current. One cable was cable tied to a copper conductor in the chase. Some small pieces of loose material were removed. No obvious problems could be detected.

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.

TM#4 with Ta#50 has been moved to the east target station.

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

ITE and TM4 2017 winter shut down leak check are finished. All ITE primary, secondary vacuum vessel and TM4 water lines are good. No any leak has been found.

TM2 has been connected in ITE. The SST window water lines in ITE can not be connected properly to TM2. The water line connector on TM2 window is 90 degree CCW installed in direction comparing to TM4.This caused the problem. Solution: Two piece of flexible lines and extra male QC adapters have been used to fix this issue.  HV cover and HV fence in ITE work  with TM2. Other connections are good as well.

It is closed @ 2:35PM by closing supply side valve first , the return side valve of ITE dump plug .

Opened ITE dump plug circuit valves @4:28PM. ITE IG1S still at 1XE-6. No change before and after of circuit closing and reopeneing.

By retrieving data further, It has been found no directly relationship between IG1S surging and dump plug water opening. Vacuum surging is 10minutes ahead dump water supply to circuit. SEE attachment 1. Also, The ITE IG1S start to behavior unusual in middle of Feburary. See attachment 2. Today,  ITE IG1S is still slowly climbing up. I decide to leak check ITE vacuum vessel. Before  leak check, for more information and trouble shooting. I closed water supply to ITE to see if vacuum has response on it. I will return water supply to ITE  tomorrow morning.

Water supply to ITE is returned this afternoon at 2: 10 PM.  Everything works fine so far

I leak checked ITE secondary vessel vacuum. A leak have been found in March 09th noon which is located between entrance module and TM2 top tank flange o-ring seal( on tank flange). It could not be confirm on which side of the o-ring the leak is from.

During last night, ITE IG1S reading went back to normal low E-7 range and stays in this range now. So I leak checked same area again this morning. The leak disappeared now. The o-ring works sometime , but not all the time. The plan for this issue: Change ITE target module side o-ring when TM2 is move out., and watch on the ITE IG1s when TM4 is moved back to ITE and pumped down.

ITE clean up is done.  HV cage inside is wiped.

TM#4 with UC#19 has been moved from the conditioning station to the east target station.

all turbo-pumps are started. Everything looks fine so far.

ITE target module tank flange o-ring was replaced yesterday before TM4 moving. ITE: IG1S reading looks fine so far.