Just some notes on the install of SiC#30 on TM3 last month...It was installed with all new fasteners and torque values provided by Anders were used...of main interest is probably the main high current fasteners which were torqued to 150 in lbs.

SiC#30 has been removed from TM3. A quick exam of TM3 source tray did not  yield any obvious signs of damage.

9 pin connector on the target showed the usual sparking/arcing marks.

Heat shield has been removed from the target. Inside of heat shield has some unusual marks on it and quite a lot of black deposits.

Ucx#10 has been removed from TM4 and placed in a pail with argon.

Ta#44 has been installed onto TM4 and target heater bolts torqed to 130 in.lbs.

The broken cable on the east manipulator has been replaced.

The handle will need some adjustments which will take place first thing tomorrow.

The east manipulator handle has been adjusted and is ready for use.

ThO#1 has been installed onto TM1 and is ready for leak and electrical checking. High current fasteners torqued to 130 in lbs.

Tm1 with ThO#1 is buttoned up and ready for transport.

Jig for installation of target through hot cell roof has been assembled and placed in the target hall.

Ta#44 has been removed from TM4 and UCx#11 has been installed and is ready for testing.

New fasteners were installed for all mounting and current connections.

High current fasteners were torqued to 130in lbs.

Some issues with the turntable and having to wait for a decision on whether to remove TM2 from the hot cell so that TM4 with dead UCx target could be put in this morning.

Progress on TM2:

• Containment box has been removed from TM2.
• Water block jig has been installed.
• Existing blank off has been removed.
• Sealing surfaces have been inspected.
• First stage of sealing surface cleaning has been performed.

Tomorrow:

• Polish of sealing surfaces.
• Installation of loop.
• Vacuum/helium leak check of loop.

TM2_20141201_03 - sealing surfaces before cleaning...kind of dirty

TM2_20141201_05AC - sealing surfaces after cleaning...looks good!

Final polish, clean with methanol and clean compressed air.

Loop installed and torqued to 90 in lbs.

Minimum of approximately 1"  between loop and containment box at closest point.

Final assembly of the source tray for TM2 was started this morning.

Sliding tray was received from keensert installation and cleaned.

Mounting plate/ionizer tube location jig was rechecked against assembly ITA3136...Mounting plate was loosened, jigs for centering the ceramic shields installed and fasteners re-torqued to 57 in lbs.

Upon attempted assemble of ITA3536 and 3537 (support frames) it was noticed that the countersinks were not deep enough...the heads of the screws protrude and would interfere with/damage the support insulators. These items have been given to Dan to have the counterbores adjusted...drawing should be changed to insure a small gap.

Also, one of the support frames has marks on its side that may be a high voltage issue.

Upon inspection of the components in question (ITA3540 & 3538) it was found that they have been made to spec and model; however the spec& model does not allow for adequate theoretical clearance given tolerances. Countersinks will be adjusted and changes documented.

"Pitting" will attempt to be lapped.

Countersink problem with supports has been remedied. Scratches, dings, and pitting has been buffed out and supports re-cleaned and re-assembled.

Friedhelm was consulted regarding the appearance of fine scratches on the main stand-off insulators...the best two matching ones were chosen and assembly continued.

Alignment will start tomorrow.

TM2 Tray Alignment is complete except for verification with alignment tray.

First attempt results were:

Front Target: Low 0.011, Left 0.011

Rear Target: Low 0.013, Left 0.002

Final iteration:

Front Target: Vertical 0, Horizontal 0

Rear target: Vertical - 0.003 low, Horizontal 0

Pictures were very hard to get but are below...camera is impossible to get square to lens so pictures are not entirely representative of looking through transit.

TM2 tray alignment was confirmed with the alignment tray this morning:

Front target 0.000 vertically, 0.000 horizontally.

Back target 0.003 low, 0.000 horizontally

Also, the master target jig was installed and measurements taken:

Front master target - 0.007 high, 0.000 left/right

Rear Master Target - 0.007 high, 0.000 left/right

Rear tray target - 0.003 low

On Tuesday morning I attempted to complete assembly of the source tray for TM2 however discovered that 3 1/4-20 x 0.25 titanium helicoils had not been installed into the mounting plate as they should have been. Checked and asked around for them but to no avail. I have ordered some, they should have been here yesterday.

Also, I have noticed that the threaded portion of the target pins ITA0328A appear to be too long and as such may be (are indeed) touching the supports. I am going to remove 1/32" or appropriate to remedy this problem (drawing shows 0.035 clearance).

Missing heli coils installed this morning.

Threads had to be chased with tap for 1/4-20 heli coil and missing countersinks hand applied to allow for installation. Care was taken to ensure no "swarf" was spread and operation was super clean. Chased holes blown out with canned air and a vacuum placed on the other side.

Final assembly can and will now continue.

Master target jig installed to locate attachment bracket ITA3389 as well as conductor insulator block b (aluminum / for soldering version) and oven conductor blocks (ITD0353 and 03356). 

There were NO ITA6145 fasteners or TGN0076 either. Standard 1/4-20 x 1" fasteners have been used in there place for now. Keith is following up with getting the missing fasteners into the shop.

Oven conductor blocks will have to be lapped before lines are attached as they both have dents on the high current mating surfaces.

The new gas bottle storage rack has been installed by/for the south hot cell.

See attached report.

Summary:

Radio problems just before entry to cell. Inspection afterwards revealed batteries charge but battery in one radio shorts out after a couple loads/cycles.

Fields in hot cell range from 630 uSv/h @ 1 m to 1.5mSv/h @ 1m. Contributing to the fields is the febiad coil line removed from TM4 in the south west corner of the hot cell.

Contamination/particulate on table as mostly black colored and of a fairly substantial size, but seamingly easy to collect. Distinquishable pieces of target material present.

Hot cell window show no sign of leaking on the inside of cell.

Pre-filter changed.

Manipulators lubricated.

Hot cell entry procedures appear to still be fairly successful in minimizing contamination migration from the hot cell.