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.

Last Friday, During the crane per use check, I found the main power supply to to crane was shut off. I was told   Don and Travis shut off the main power before Triumf power outage. Travis restored crane main power and I  could turn on the main relay on radio pedant  in TH.  But, I didnt have all crane main bridge movement controls on TH raido pedant except rotation. I still have all movement controls on small trolley from the radio pedant. When I operated radio pedant, Travis could hear the relay works in crane control room, but in TH no crane movements. It looks like a crane control problem so Dave Morris was contacted. Dave found one of battery on PLC board is dead and need to be replaced.He did order the battery right way. On this Wednesday, Dave noticed us we could temporarily run the crane. I went to T.H  for checking. At the beginning, I found I cant not turn on the crane main relay from radio pedant in TH. Don was in crane control room. He switched the crane control from TH radio  mode to control room pedant( big yellow control box laid on the ground, the mode switch is located on the up left corner of first main panel)  and he turned on the main relay by doing this and got all movement controls from the big yellow pedant. After switching the mode back to TH radio mode I also got all the controls from TH radio pedant. Everything worked fine on crane so we moved the man lift into TH on Wednesday afternoon and arranged the TH crane inspection on Thursday. On Thursday morning, Gordon Crane guys came in TH and started their inspection. At the beginning, everything works fine. But after they did some operation and checks on crane, the crane main relay could not be switched on again (from TH  raid box). The crane inspection job are suspended. RH group tried to active the main relay by switching the mode back to yellow pedant in crane control room just like we did on Wedsday, but it did not work this time. David Morris was contacted to check from his side if anything wrong. He checked and told us the program is working and everything  is good from his side. A crane expert is needed to trouble shoot this problem. Neil Wong is going to bring Gordon crane guys and start to trouble shoot the problem this morning.

Gordon crane technician started TH crane trouble shooting this morning. The problem is found that there is no 115VAC power supply to energize  a main coil which is used to switch on 450V AC power supply to crane. He did a test and found  the crane could be operated  by big yellow pedant in control room when he manually gave the coil 115VAC power supply to energize it.. At that moment, the crane is set to big yellow pedant operating mode. But, he can not figure out why there is no 115VAC power to this coil.The wiring  tracking back is not an easy job for him. The troubleshooting is  stopped now. The job will be resumed on next week with more skilled technician involving in from Gordon crane.

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

Gordon crane technicians continued their troubleshooting on this Tuesday. They found the crane up-limit protection switch which is installed on the same bracket with the the crane down view camera is broken. The spring inside the limit switch  which is used for pushing the action plunge out in the switch lost its function. This up limit switch is the last protection for the crane so it is set as when it is in action the crane main contact coil  which controls crane  power supply will be in open position. The broken switch is replaced by a new one( same type) on this Wednesday. The crane annual inspection has been  finished after the switch replacement. The crane works fine now.

Dave.Morris installed a new battery on crane control PLC board and uploaded the program. Travis, Dan and I tested the crane in local, remote, and test mode. The crane works fine. Also, the TH lock up has been tested. Everything is good.

The copper bars was installed by David and Anders. After the measurements were completed, the copper bars were removed.

See photo and attached spread sheet.

 See e-log entry for ITE for details. The copper bars have not been removed. They can be used for testing the new power supplies.

Local measurement was done by Ray with a voltmeter. The voltmeter was consistent with EPICS readback and local readback on the power supplies. A voltage drop of 0.137 V @ 580 A was measured across the bus bar from the TGHT power supply to the cooled transmission lines.

Dan and I replaced pedal wheels and coils on ITE water flow sensors. It is a shut down job we did every two years. See attachment for detail.

Dan and I replaced pedal wheels and coils on ITW water flow sensors. It is a shut down job we did every two years. See attachment for detail.

TH shut down activities schedule from Feb 23th-March 25th. The schedule will be updated each week. See attachment 1.

Feb-27-2015: Updated the schedule, and uploaded as PDF file. See attachment 2.

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.

5 Shielding blocks have been moved to ITE for next week TM1 move and RPG Radon test.

TH shut down jobs are processing as scheduled this week. Discussed with Don, and we think the jobs scheduled in next week should be processed as we planned. See attachments for updated schedule.

I updated the schedule today. See attachment 3, 4 for updating.  2015-Mar-10.

2013-Mar -13, I updated the schedule to show the jobs we finished this week. See attachment 5,6

Box for dissecting targets almost complete. Should be done tomorrow.

3 swipes of the south hot cell table were taken from the target hall through the roof hatch (2 standard, 1 alpha).

Initial results of the table swipes are pending however swipes of the pool tool and end effector are clean, 0 counts, booties, gloves clean.

Fall arrest equipment has a puzzling 6000 counts, and suit 500 counts.

5 shielding blocks have been transferred from ITE to ITW for next week TM4 move.