Rust on S/W silo and cover plate stored at silo area are cleaned up.

ITE clean up is done.  HV cage inside is wiped.

2A window has been removed from the vault and moved over the cyclotron vault tunnels.  Attached is the updated storage vault list.

The 2A3 window now has a lid, and lift yolk on it and it has been installed in the spent target vault in spot 2A. The lid is a normal unmodified and has no sealant on it.

Travis Cave wrote:

The 2A3 window now has a lid, and lift yolk on it and it has been installed in the spent target vault in spot 2A. The lid is a normal unmodified and has no sealant on it.

The pail containing window was transferred from the Storage Vault to the Cyclotron Vault Tunnel Storage 2017 Mar 24. It was placed in a brick bunker along the north wall and marked with item #1434. RPG storage form is attached.

Highest field measured at 0.5 m was 3000 uSv/h with an estimate of 4000 uSv/h on contact with the pail. Pail exterior was not contaminated. See attached storage form for details.

 

Transfered the 2A window from the ISAC Storage Vault to the Cyclotron Vault Tunnel Storage area. RPG storage form attached.

TM4 service cap rust are cleaned out at TCS. All top surface of TM4 are wiped and cleaned . The module looks good now. see attachments

Strange noise and a burning brake type smell was observed yesterday by David and Anders when running the main 20 ton hoist locally.  A service call was arranged today with Gordon Crane.  No major issues were found.  A more detailed summary is in the attached e-mail correspondence.  Gordon Crane will issue a formal report, but they recommend replacing both sets of brake disks and brake calipers. - Grant

Electrical check of the Ta test target on TM#2

TM#2 has been moved from the east target station to the south hot cell.

Yasmine and I did a rust inpsection on TM4 service cap inide surface and shielding plug surface. No rust has been found. Also, all steel bolts on this surface look fine. The inside of silo held this module are rust free as well.  See attachments

TM#4 has been moved from the SW Silo to the conditioning station.

All target in the ISAC spent target vault have been either assayed or had their fields measured or both.

The west 'Z' motion cable on the east manipulator has successfully been replaced. The job took slightly less than an hour (including inspection of the scissor table hoses) and I received 0.075mSv. Scissor table hoses appear to be fine and also didn't "shed" or flake at all when checked by hand.

I watched rust on TM4 and its silo. Most of rust are on est side of module and silo. See attachments

I have moved the suspected "hot" items in the hot cell and placed them under some lead bricks. I have re-measured the fields and it has been reducded to 90 uSv\h at the manipulator repair area and 110 uSv/h at the previous 1.82 mSv\h area.

Did a dry run with the latest procedure with Dan Mcdonald. Elapsed time was approximately 30 min.

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.

The fields in the hot cell have been measured by means of a pole monitor through the tool port. Field was measured to be 25 uSv/h.

By retrieving data further, It has been found no directly relationship between IG1S surging and dump plug water opening. Vacuum surging is 10minutes ahead dump water supply to circuit. SEE attachment 1. Also, The ITE IG1S start to behavior unusual in middle of Feburary. See attachment 2. Today,  ITE IG1S is still slowly climbing up. I decide to leak check ITE vacuum vessel. Before  leak check, for more information and trouble shooting. I closed water supply to ITE to see if vacuum has response on it. I will return water supply to ITE  tomorrow morning.

Water supply to ITE is returned this afternoon at 2: 10 PM.  Everything works fine so far

I leak checked ITE secondary vessel vacuum. A leak have been found in March 09th noon which is located between entrance module and TM2 top tank flange o-ring seal( on tank flange). It could not be confirm on which side of the o-ring the leak is from.

During last night, ITE IG1S reading went back to normal low E-7 range and stays in this range now. So I leak checked same area again this morning. The leak disappeared now. The o-ring works sometime , but not all the time. The plan for this issue: Change ITE target module side o-ring when TM2 is move out., and watch on the ITE IG1s when TM4 is moved back to ITE and pumped down.

It is closed @ 2:35PM by closing supply side valve first , the return side valve of ITE dump plug .

Opened ITE dump plug circuit valves @4:28PM. ITE IG1S still at 1XE-6. No change before and after of circuit closing and reopeneing.