TM3 has been disconnected at CS. It is vented and ready to move.

Chad and I leak checked HS line on TM1 with ThO#1 target installed. The LD pumped down to base leak rate 0.0xE-9 atm.cc/sec, base leak rate 0.0xE-4 torr. The pumping down process is normal. Chad sprayed helium on both VCR joints (each for 2 seconds) , and he did a flush spray around the target for 5 seconds. No any response had been found on LD during and after the spray( 40seconds waiting time). The target is leak tight.

TM1 has been connected in ITW. All turbo pumps are started. The pumping down on ITW is good so far. The water is supplied to TM1 for HV conditioning.

I found primary vacuum back up pressure ITH CG1, CG2, and CG4A were unusually high this morning. They should be about 10 -20 mtorr after one night pumping, but all of thier reading were 340-350-mtorr. Thease cause the current draw on primary turbo pumps were all over 2.0A(should be about 1.0A). I let Paul closed all BVs on primary side . The pressure dropped quickly to normal range after all BVs were closed. This shows the back up line are good. The problem are from   one of  the connections  on primary BVs. I let Paul opened the BVs one by one,but the problem did not show again. Now ,the current draw on the turbo pumps are back to normal also.

I will keep monitoring the system and take a look on all KF25 clamps on BVs once I have a chance to access to ITW.

CS  vacuum system has been connected to TM3 for control system test(Dave.Morris).

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

I replaced flow wheel and coil on ITW MSP water flow sensor which is located in ITW pit. Before replacement, I checked the signal strength and frequency form e-board on this circuit. The signal was good in 10minutes watching. Still, I replaced them. The flow sensor works fine after replacement. I made a comment  on Isac e-fault system about this issue.

Dan and I replaced flow wheel on ITE HVC2 water flow sensor. The old wheel did rotate smoothly inside its SST case. The new wheel works fine.

I craned down UCx11 target from TH into SHC. Chad was in SHC service area watching on it. The source tray moving jig was installed on the crane for this moving.

Dan and I disconnected TM4 in ITE.

CS roughing pump is started for TM4 and UCX 11 target.

TM4 has been connected connect in ITE. Water is supplied to TM4 module only.

CS and TM4 was vented with Argon gas this morning before it was moved from CS to ITE.

The stand was used for transferring UCX11 targte from TH to SHC. The stand wit target was craned down from TH into SHC last week and stayed there over weekend. Chad and I removed the stand out of SHC yesterday. It was heavily contaminated. RPG and I spent more than 3 hours to clean this stand. See the emails I pasted below for  detail information.

Thanks, David, for letting me know about this. Here are survey results after my afternoon in Target Hall:

I spent 1.5 hours on additional decon of the stand, crane hook, and area around where David was doing the decon, finding up to 10k cpm (44-2) on some parts at first. Danka came to help after a bit (THANK YOU, DANKA) and we left the items covered in plastic and surveyed the area. Contamination survey results are as follows, numbers are units of cpm on the 44-2/RM14:

Tacky mats inside TMH door: 6000/2000

Tacky mats in hall before TMH door: 200/0

Tacky mats at boot box: 8000/4000

My booties: 50/0

Air sample at the decon area: 50/60 (also 100 cpm on alpha probe)

Floor swipes post-decon of floor: 0/0

Early results from a 10 min assay of the tacky mats shows predominantly Kr-85, Be-7, Sr-85, Rb-83, and Sr-82. A longer assay is underway.

The following measurements were made using the checking cave at the boot box (units of cpm):

David's respirator cartridges: 160

David's respirator: 0

Davids tank suit and booties: 1200

My suit: 100

My respirator: 0

The rags used for the decon work were contained in a bag and left behind the silos by the DST. This bag measured 240 uSv/h OC and 2 uSv/h at 0.5m

Thanks,

Andrew

Hi all, The UCx#11 target transferring stand is moved back from SHC to TH. However, the stand was heavily contaminated. On the first Windex clean up towel, the counts directly shoot over the 500K counts which is the maximum scales on both RM14 and 44-2. After almost 2 hours, more than 20 times cleaning up with Windex spray and paper towel wipe , the counts dropped below 300 now. It is extremely difficult to clean up this stand.  I dont think we should move the target this way again unless we have a solution on the contamination clean up. The stand is still hanging  on the crane, and waiting for RPG checking.                        Thanks    David

5 Shielding blocks have been transferred from ITW to ITE. The ITE is configured to take proton beam.

Chad and I leak checked TM2 tube heater+(D) circuit at SHC with water bypass loop and new seals installed on the water block. The LD base LR 0.0xE-9 atm.cc/sec,base pressure0.0xE-4 torr. Chad sprayed helium on the leak check area in SHC for 5 seconds. No any response has been found on LD during 1minutes waiting time. The test was repeated again and the result is same. NO LEAK at this stage!  After the TM2 is moved to CS , The D line will be pressured with 80 psi helium for helium pressure leak test before any hot water is circuited through it.  

I connected TM2 and CS vacuum system. All vacuum pumps on TM2 and CS are started .The pumping down is good so .far

The pumping down on TM2 at CS was good overnight. However, the back up line pressure is still too high for LD to get to 0.0-E-9atm.cc/sec . It only could get to 1.2xE-7 atm.cc/sec. It is not enough for a good leak check . I dont want to have any ambiguous situation on this" D" line leak check. So,I am going to reconfigure the leak detector to the spare KF25 pot on the TM2 service cap. All pumps are stopped . The CS and TM2 will be vented soon. After that, a manual valve will be installed on that spare KF25 pot for future helium pressure check at CS. Then, The TM2 and CS will be pumped down again.

At CS, The leak detector is hooked directly to the TM2 top service cap. The base LR 0.0xE-9 atm.cc/sec, base pressure 0.0xE-4torr. Applied 80 psi helium to TM2 tube heater +(D) line . During 3 minutes applying time , I did  not see any tiny change on LD readings. The line is perfectly vacuum sealed.  See attachment pictures.

4 shielding blocks have been moved out of  ITE to block storage area. Fiona did the survey and with me during the move.