to reduce the radioactive shining from  SHC Ta# 40 target.

TM4 has been connected in ITE. All turbo pumps have been started now. The pumping down on TM4 and ITE is good so far. The water interlock check on TM4 is done,and everything is fine. The ITE  IG1 still couldnt be turned on even if we replaced a new TM4  IG1 at CS. The problem is on the connecting cable from ITE to electrical room or gauge controller. I talked with Friedhelm  and vacuum group will be noticed on this problem.

I moved5shielding blocks from ITE to block storage area, This is a job for preparing ITE vacuum surge investigation and leak check.

A huge leak had been found on HS circuit during 60 psi helium pressurize test. Other circuits are free of obvious major leak at present .We will test them again once the TM3 is back to CS. See attachment for details

I moved 5 shielding blocks to ITW this morning .I checked the water signals in electrical room before the moving, and everything is fine. The argon venting systemin ITW and electrical room is ready also.

TM3 has been connected in CS.Three turbo- pumps have been started. The pumping down is fine so far.

I leak checked TM3 water lines at CS with 60 psi and 80psi helium. The base leak rate is 5.0xe-9 atm.cc/sec. Each circuit 3 minutes helium pressurizing for each time test. No any respose had been found on leak detector during the test. See attachment

Leak checked TM4 coil1 in SHC with Isaac . The leak detector only can pump down to 1.5xE-7 atm.cc/sec. The leak detector got the response once the helium valve is open, not even close to the leak area. The leak detector got a very big response when the helium probe was put close to the coil terminal block on target front side and spray helium for 2 clicks. The leak detector got a small  response when the probe was put close to water block area and spray helium for 2 clicks. The leak is located on the front target side coil line but not from water blocks. The leak is too big to be further pin pointed by this method. See attachment

This morning, Bevan and I leak checked window circuit on TM3 at SHC after containment box was installed. It took about 20minutes to pump down the circuit to  0.0xE-9atm.cc/sec. Bevan sprayed helium on both VCR joints and a final splash. No response had been found on leak detector.

Maico and I leak checked HS circuit after Chad installed the target. The circuit was a little bit difficult o pump down because of residue water moister inside. But once the moisture was pumped out, the pumping down was smooth and fast. The base leak rate 0.0xE-9 atm.cc/sec, base pressure 0.0xE-4 torr. Maico checked helium flow before the leak test. Then,He sprayed helium to all 3 VCR fiitings on target with 2 seconds on each one, He also flushed 10 seconds helium around the target. There were no any response during all these test time on leak detector.He checked the helium flow again after the test  and confirmed the helium flow.  The HS circuit is leak tight.

I moved 5 shielding blocks from ITW to ITE. The ITW  is configured to take proton beam.

Bevan and I installed 2 turbo pumps on TM2. The o- ring flanges on TM2 had been cleaned before the installation.

TM3 has been disconnected this morning and  purged all HV water lines. I found the power plug for all turbo pump fans wasnt connected  during the last run. That maybe the one of the reason on that ITE TP3 failure.

I leak checked TM2 at conditioning station this morning. All air to vacuum seals on the top of the module are good. All water lines are pressured with 60 psi helium for minutes each. One of the tube heater + water line( 2lines for tube heater + for supply and return) has a huge response on 60 psi helium pressurizing. The leak rate went from 6.0xE-9atm.cc/sec to maximum leak rate in 5 seconds and I saw a pressure increasing either. when I pressurize the other side tube heater + line ,the leak detector also had a response,but it is slower than first side .Since the top of the water adaptor isn't sealed , so I think the leak should be in one line only. All other water lines are leak tight since I didnt see any obvious response on leak detector at 5 to 6x E-9 atm.cc/sec which is very low on leak rate. 

I moved 5 shielding blocks from ITW to block storage area.

I disconnected TM4 in ITW .The job took about 20minutes and I got 0.11 msv dose.

I installed 8 new bolts(3/8-16 UNC x1.25  STL) on the ITE TP3. The ITE TP3 replacement job is done. Everything is connected back to the pump. and it is ready for starting.

Chad and I leak checked TM4 heat shied water circuit at SHC. The pumping down was very good.Base leak rate 0.0xe-9 atm.cc/sec. BP 0.0xe-4torr. Sprayed helum twice on both VCR fittings.There is no response on leak detector.  The circuit is leak tight.

I connected TM4 in ITE. All turbo pumps have been started and wok fine including new TP3. Everything is good so far.