Chad, Anders and Alex inspected the target this morning. The target had no significant visible damage to the container. Some material was deposited on the Extraction Electrode.

Phots on DocuShare

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

TM#2 with no target and no source tray has been moved from the conditioning station to the north east silo.

TM#1 has been moved from the west station to the south hot cell had the ThO#1 target removed and then the modules was moved from the south hot cell to the south west silo. Also an electrical check was done on the target before it was removed.

ThO#1 has been removed from TM1 and placed into the plastic dissection box.

Containment box cover has been reinstalled as per usual.

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.

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

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

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

Dan and I leak checked ITE primary and secondary vacuum vessels with TM4  in ITE. The leak detector was hooked to ITE TP2 BV2. Leak detector  base leak rate: 0.0xE-09 atm.cc/sec, base pressure: 0.0xE-4 torr. All secondary vacuum vessel seals has been checked(helium spray), and no leak has been found. On the ITE primary vacuum vessel, we  leak checked every thing except the TM4 service cap and water lines inside the TM4. NO leak has been found on ITE primary vessels. The primary vacuum seals on TM4 service cap and TM4 waterlines(helium pressure test) will be checked at CS later.

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.

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.

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.

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.

 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.

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.

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.

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.

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

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.