The TH will be locked during the TM1 conditioning time due to  an interference issue between CS HV cover and a gas analysis valve on top of TM1. A work permit has been issued for the conditioning job because of it.

On Friday April 17th, UC#12 target was installed in TM1.  One of the copper water lines was bent slightly as the target was lifted into the module which caused ~15 minute delay due to difficulty getting the VCR nut threads to engage.  Other than this the install went smoothly.

During replacement of the containment box panel two of the threaded holes were found to be stripped.  One on the top at the center, the other in the bottom right corner.  These two holes were left without fasteners (see attached photo).  It is unknown at this time whether these holes were already stripped, or if they were stripped during this installation.

I did an electrical check on TM1 at CS. The resistance check:A-B 3.918m ohm, A-C 5.905m ohm,A-D 4.070m ohm,B-C5.462m ohm,B-D3.633m ohm. They are very close to the check we did in SHC. The only unusual thing I found during the check is the ohmmeter reading between A and 60 KV common (6.2K )and the Megga reading between them  at 250 V which is 0. I repeated 4 times and always got the same readings. However, after so many times check, the Megga reading between A and 60KV   suddenly went back to normal(300 M at 250V) at the final check.  And,it stays at 300M now.  All other measurements are same as we did at SHC before.         

There is a huge leak on TM1 containment box window. I did a 70 psi helium pressure test on all TM1 water circuits this morning. The LD base leak rate was 0.0XE-9 atm.cc/sec. When applying the 70 psi helium to containment box window circuit, the leak rate on LD jumped to 1XE-4 atm.cc/sec in 5 seconds.I released the helium source right away,t but the conditioning station is full of helium  molecules already, and the leak rate on LD stays at 1xE-5 atm.cc /sec.  The leak on this circuit is huge.    Other water lines are good.        

Changed by Dave Morris. 

New value is 1E-5 T (old value was 7.09E-5 T)

TM1 has been partially disconnected at CS for tomorrow move. The CS TP1S is still running and will be stopped and disconnected tomorrow morning.

Dan and I vented CS and TM1 with Argon gas before it is moved this morning.

Dan and I replaced ITW target pit o-ring seal(.275DIA X42"ID). It is an annual job before first beam to ITW. The old o-ring was moved and the groove was vacuum cleaned. The new o-ring has been installed properly.

TM#1 with UC#12 has been moved from the conditioning station to the west target station.

TM1 has been connected in ITW. Five turbo pumps have  been started. The TM1 containment box window line is capped on the service cap and the line is pump town to E-4 torr range.

5 shielding blocks have been transferred from ITE to ITW. I  checked all ITW water signals, and they are good.  ITW is configured to take proton beam.

Weekly update the schedule after some jobs have been finished in this week.

There was an external water leak in ITW during the last beam running time. The leak started after the shielding blocks transfer(May 22). It cause a constantly water level drop on S-tank(0.5 "/day average). Today , after the blocks are moved , the leak source has been found. Water seeped through a fitting on ITW dump circuit pressure gauge. The leak water slowly flow around the TM1 on the tank flange. most of them are dried out, but left some stain on dump module and tank flange. By closing the supply and return water valves on the ITW dump circuit, the leak is stopped now. We will fix this problem after the module is moved out and the radioactive field is low.  See attachments.

TM#1 with UC#12 has been moved from the west station to the south hot cell.

UCx#12 has been removed from TM1 and placed in a pail with argon.

Right leg (B) of target is clearly broken.

Containment Box cover re-installed and module ready to move.

TM1 was disconnected in ITW  this morning. The ITW was vented with argon last night.

TM#1 has been moved from the south hot cell to the south west silo.

 Thursday, July 09, 2015, 13:17: Water package started.

Thursday, July 09, 2015, 15:20: Water package stopped.

Friday, July 10, 2015, 14:15: Roughing with new pump

TM1 and CS  vacuum system are connected. All turbo-pumps are started. The new TP1S works fine also. The pumping down looks good so far. During the TM1 and CS roughing down time, Joe .M noticed a Rn-220 level surge up in TH . Then,the Rn220  level slowly dropped back. Anders suspected this Rn-220 surging is related to the TM1 roughing down at CS. We decided we will stop the pumps , vent the CS , and roughing  again tomorrow. During the same time Joe will monitor  Rn-220 level in TH to see if the surging is repeatable. We want to learn more on this TH Rn-220 issue.

 The roughing pump was replaced with a more leak tight pump due to the discovery of Rn-220 migration while roughing on TM1 in TCS