Target Module 3 with no target, and a partially-installed Rev-3 source tray (no steerers connected, no IMG connected, entrance window lines blanked off on module side and not connected to containment box) was transported successfully to the Conditioning Station by Travis Cave and David Wang at around 4pm today.  David attached the vacuum system for start of pump-down to prepare for leak checking.

Today Chad finished making all connections to the new source tray, except for:

- steerers - broken wire, must be repaired at a later date

- IMG gauge - bracket required, old bracket thrown out with previous tray by accident, see ITA3301, must be installed at a later date

- entrance window - the window lines on module side were left blanked-off for leak checking, containment box must be removed in the next few days to complete steerer repairs so these lines were not connected to save work from having to be repeated

The containment box was replaced, and TM3 was moved to the CS for pump-down and leak checking (see other e-log).  David reported at 6:15 pm that the turbos were turned on at the CS and the vacuum looked normal (so far).

As stated above, Chad realized today that he had thrown out the old IMG gauge bracket with the previous source tray, and a new one must be manufactured.  The assembly is described by ITA3301.  Three components must be manufactured (ITA3302, ITA3303, and ITA2673).  A stock split-ring clamp for ITA2673 (MDC #716001) was graciously donated by Dimo Yosifov.  Grant Minor submitted a work order to the machine shop today for 2 each of ITA3302 and ITA3303.

While continuing on the TM3 Rev 3 source tray installation, Chad noticed today that one of the steerer wires is broken and has come out of the thermocouple-style connecter block (see attached photos).

From drawing ITA2826 (Rev D02 attached) it is likely that this is for either the "upper" or "right side" steerer plate.

After a great struggle with the water block jigs, the TM3 source tray was finally advanced fully into the service tray and all water blocks were connected and torqued to spec in the hot cell by Chad Fisher.

Notes and description of problems encountered during the installation:

- The water lines for the optics tray interfered with the module-side water block jig, and had to be bent out of the way to clear while advancing the tray (see attached photos)

- The water block jig on the source tray side was too low relative to the module side, and had to be eventually unbolted completely from it's mounting bracket in order to raise it up into alignment

- A piece of aluminum plate was placed under the jig, and the pneumatic table was raised in order to move the jig upwards

- After many repeated attempts to engage the blocks by pressing the jigs together, it was discovered that some of the blocks had rotational misalignment with their respective counterparts on the module side, preventing the pins from engaging properly

- By looking through the bolt holes on several of the blocks, it was possible to determine which direction they had to be rotated

- Chads polishing tool was used to apply some torque to rotate the source-tray-side water blocks slightly so proper alignment of the pins could be achieved

- See the attached photo which indicates which blocks had to be rotated (blocks 5, 6, 9, 10, and 11)

- The blocks had the bolts installed and were also torqued in the numbered order shown in the attached photo

Next steps are to remove the water block jigs, re-connect the loosened brackets for the remaining water lines (entrance window, optics tray), re-install the containment box and associated VCR connectors, video inspect, and leak check.

The water block sealing surfaces on the module-side of TM3 were polished this week by Chad Fisher, using his air-ratchet controlled rotating head tools (single and double-surface polishing tools).

Photos of the polishing tools in-use are attached (from August 16 - 21, 2013)

Scotch-brite pads were used, followed by 2000 grit sandpaper, then white felt with isopropanol, then lint-free dry polishing pads, each on detachable heads that are used with the polishing tool.

The module-side water block surfaces were inspected by Grant Minor on 21 Aug 2013 using a level telescope and camera looking through the hot cell window.  Results can be viewed here, with photos indicating which block is being viewed in sequence.

https://documents.triumf.ca/docushare/dsweb/View/Collection-11251

All water circuits except Coil 1 were leak checked by David and Anders. No obvious signals were detected except some small possible responses. See attached notes for details.

By pressurizing the water lines with 70 psi helium David and I detected a major leak on the Coil 1 circuit. The response maxed out on the leak rate on the leak detector and we could also see a pressure increase on the leak detector. ISAC controls reported a change in vacuum at the same time (link).

The Heat Shield and Coil 2 circuit was checked before we moved to Coil 1. No response was detected on these two circuits. We would like to check the remaining circuits as well, but this cannot be done today due to the large amount of helium still present. The remaining circuits will have to be checked tomorrow morning.

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

TM#3 and its new source tray have been both moved into the south hot cell.

All the F-308's have been torqued up  and the locks installed. Ready to be moved.

Five spent targets have been removed from the storage vault and placed into the mini storage. The target placed into the mini storage are UO#3, UC#'s  3,4,5 and SIC#23. See attached PDFs for vault details.

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.

TM#4 with SiC #29 has been moved from the conditioning station to the east target station, move went well.

Spent target Ta#40 has been placed into storage. The target was placed in pail #107 and was put into slot 5A of the vault. It had a field of 224mSv/hr upon removal from the south hot cell. See attached PDF for more details.

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

Bevan and I did a helium pressure test on TM4 HS water circuit at CS. The leak detector is pumped to the bottom scale(E-9 atm.cc/sec and E-4torr). We applied 70 psi helium to the HS circuit for 3 minutes .  No response had been found. I also leak checked IG1 flange which was replaced yesterday. It is  good. We connected the TM4 to CS and put the HV cover on. The water cooling system will be started soon.

Electrical check of TM#4 with SiC#29 attached. Results are pretty much the same as yesterday for the coil to 60kV common, and anode to 60kV common. See attached pdf for details.

3 turbo pumps on TM4 and CS have been started. The pumping down is good so far, The TM4 PNG1 reading is more than 10 times higher than IG1 which is at the same chamber. It could be a controller problem.  Other 3 high vacuum gauges behavior normal.  The TM4 IG1 is replaced today and it works fine now.

TM#4 with SiC#29 has been moved from the south hot cell to the conditioning station move went well.