Water interlock check  on ITW is done. All water signals are strong on EL panel.  ITW is configured to take proton beam.

I moved 5 shielding blocks from ITW to ITE. The ITW  is configured to take proton beam.

5 shielding blocks have been moved from ITE to ITW. ITW is configured to take proton beam now.

and set up ventilation for ITW. ITW is ready for taking proton beam now. All water interlock checks for ITW are done. The ITW water signals strength and frequency had been checked from electrical room, and everything is good.

I moved 5 shielding blocks from ITE  to ITW.ITW is configured to take proton beam now.

I moved 5 shielding blocks to ITE. The ITE is configured to take proton beam.

5 shielding block had been moved  back to ITE. The ITE is configured to take proton beam.

 MAA is secured .The ITE and MAA are ready for taking proton beam now.

TM1 has been reconnected in ITW. Water interlock check for TM1 is done.

 I  reconnected TM1 to ITW on 02 July.The pumping down is good so far. TM1 water interlock check is good also.

I disconnected TM4 in ITW .The job took about 20minutes and I got 0.11 msv dose.

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.        

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.

Field measured at block "R" through tool port with pole monitor is 6.65 mSv/H.

There are three air hoods and two air lines currently available.

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.

Entered south hot cell Wednesday and replaced the pre-filter air filter as well as the front two light bulbs. Also removed two bags of compressible garbage, one bag of metal, and of course the bagged air filter (as Joe M. expressed as interest in havung it).

Inital checks found approximately 4000 cpm on the cell side of the temporary Al. panel used during the cell entry, 2000 cpm on the tacky mats layed out beside the work area but nothing on the floor under the plastic that had been layed down for the job.

Chad

I have re-measured the fields in the hot cell. Fields at shield door Al cover are 101 uSv\h, in cell at the east manipulator are 245 uSv\h, and the largest field is 1.84 mSv\h...this appears to be the high current fasteners removed from the last target.

Chad entered the NHC today to tighten set-screws on both slave side manipulators and re-align the West side slave. Work took place using the HC Confined Space Entry procedure. See attached checklist. WP I2020-02-27-4

 Anders and I prepared ITE high voltage test in April 30 ( Friday morning), The MAA is locked for this.

High active water are purged to holding tank at B2  level. There should be around 48 gallons are purged out of system. No purging on dump circuits on both ITW/ ITE.