Source tray meggered today by Anders and Keith

GND - MSP OL @ 1000V
MSP - EE OL @ 1000V
EE - GND OL @ 1000V
4x Steerers - GND OL @ 500V

Steerer continuity verified from socket to steerer plates
(looking in the direction of the RIB, labeled top to bottom on sockets)

1 - Top
2 - Left
3 - Right
4 - Bottom

TM3 Rev 2 source tray/extraction column insertion into its storage was completed yesterday and it was then removed from the hot cell and put into the anteroom until June 25th when it will be moved into the vault tunnel.

The Box did have 10000 counts of contamination "all over" it. It has recieved inital decontamination and is down to 1000 counts.

The Source tray was inspected in the RH shop today by Anders, Friedhelm and Jens. The routing of the lines are satisfactory, however a design proposal to remove the ground electrode line will be made. This design will have to ensure a proper connection from the electrode to ground (using the window cooling lines). All other lines are OK at this point. Some fine adjustments are expected after brazing and soldering to maintain high voltage separation. Photos are available on DocuShare Collection-21401

Chad removed the source tray from TM3  today, see attached picture (video was also taken). There was some interference between the window cooling lines and the frame work as well as the clamps for the ground electrode and the water block alignment jig. There was also interference between the optics alignment post (specifically the mushroom top) and the water block alignment jig. Investigation into these inferences needs to be completed as they could cause trouble for the insertion of the new source tray and alignment of the copper lines. During removal it was easy to bend copper tubes out of the way but this clearly would not work during installation.

The two 45 gal (m) drums of waste removed from the south hot cell in December 2015 and January 2016 were transferred from the north hot cell to the shaft of the east vault tunnel on Monday, July 25th 2016 and subsequently to the east tunnel bunker in the vault tunnel on Tuesday, July 26th, 2016.The first drum (removed from the hot cell in December) containing both activated and contaminated metals was measured at 900 uSv/hr @ .5 m and the second drum (removed from the hot cell in January 2016) containing compressible items such as tank suits and plastic was measured at 150 uSv/hr @ .5 m.

Items were filed for storage/disposal with RPG under item number 1395 on the radioactive storage form.

Drums were transported to the vault tunnel using the 500 Mev Shield Flask (Drawing E-7097) with some minor modifications, namely a 1/4" thick Aluminum plate with four holes that line up with the holes in the bottom flange of the flask. This plate provided a bottom for the flask so that a drum could be contained within the flask during craning. Holes in the plate where countersunk for a 1/2" flat head bolt. Four bolts were also modified to accept 3/16 hair pins. 3 plates with clearances holes for the bolts were also manufactured to act as washers.

Procedure was as follows: With plate, washers and pins installed onto the flask, a modified drum dolly (5" spacers added to the casters) was placed inside the flask. Drum was craned into the flask using the automatic drum lifter. Flask with drum loaded was moved to the Meson Hall loading bay then craned to the B2 level of the Meson hall. Hair pins were pulled from the flask and the flask was then craned up leaving the drum (which was on the dolly firstly installed into the flask) and the plate. Drum on dolly was rolled to vault access shaft where it was craned off the modified dolly using the automatic drum lifter and down the access shaft to the vault tunnel level.  A second drum dolly was waiting at the bottom level and drum lowered onto it. Procedure was repeated for the second drum

Was vault was open , drums were wheeled into the vault tunnel and into a bunker that had been modified to accept these drums. Drums were lifted off dollies and put in place in bunker which had blocks installed to cover the entrance provided for installation.

Pictures can be found on docushare http://documents.triumf.ca/docushare/dsweb/View/Collection-18072  (collection 18072)

Field measurements have been taken to determine the level before entry for repair of manipulators.

Field on contact at manipulator is 560 uSv/h, and at approximately 1/2 meter at table surface 920 uSv\h.

The NHC right side manipulator was evaluated today to check if operation was normal through all ranges of motion.  The manipulator was first moved through usual motions without the electric motion drives: the feel was fairly normal, a sound could be heard from the master side Z motion tapes rubbing on the sides of the pulleys, this problem had been identified a few weeks ago however it was significantly reduced since the master side upper and lower Z motion tapes were tensioned yesterday (using CRL repair manual)

The Y motion drive was then tested:  with the master arm close to the window we attempted to move the slave arm close to the slave side window using the Y motion drive; part way through travel the arm stopped moving and would not move any further towards the window.  At this point it was approximately 1 foot from the slave side window.  (I recall that when the manipulator was installed in the wall it was difficult to get the slave end fully horizontal, the arm would travel part way, then stop for seemingly no reason.  Eventually after multiple attempts I got it to reach the horizontal position)

The Z motion was then tested.  The slave end was moved to the fully extended position.  At this point when the Z drive was continued downwards the master side moved up.  Once it reached the upper limit the drive continued which caused the Z motion tape on the slave end to snap.  At this point testing was stopped.

Our plan is to assemble and test the left side manipulator after the manipulator handling cart repair is completed.  If the left side has the same problems it is likely a manufacturer defect.  If not, the problems with the right side may be due to a timing error introduced when we removed the slave end to fit the assembly and cart through the roof hatch from the ISAC-1 experimental hall.  In either case we plan to have  CRL technician come in to address the issues and tune-up both arms before use.

Sorted and packed one 55 gallon drum with low contamination and active stuffs which are placed around silo area in the past. They include old poly water cooling lines replaced from ITE, ITW and TCS, contaminated paper  rags , gloves, and plastic bags,air cooling fans for turbo pumps, EE resistor packaged used on module top before, flow meters and cables used in ITW, etc. After packing, The field outside the drum on contact is less than 10 usv/hr.

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.

Looked at SiC#45 in the hot cell. Looked very clean, no deposits on the heat shield or other components. Target also looked very straight. Only issue we saw was sparking marks on the EE side that faces the ground electrode, in several spots. This target had a bout of sparking when ramping up the protons, so I guess that was the location. Will look for matching spark marks on the ground electrode next time TM4 is in the hot cell. Forgot to take picutres...

Thursday, October 19, 2017, 14:20: EE configured for conditioning. HV cage locked up

Thursday, October 19, 2017, 16:46: BIAS / EL / EE at 45 / 22.5 / 0 kV

Thursday, October 19, 2017, 17:16: 30 min without sparking. Lowering to 0. Continue conditioning tomorrow.

Friday, October 20, 2017, 08:22: Resuming HV conditioning

Friday, October 20, 2017, 08:44:  BIAS / EL / EE at 45 / 22.5 / 0 kV

Friday, October 20, 2017, 09:48: No sparking. Continue conditionoing

Friday, October 20, 2017, 10:40: BIAS / EL / EE at 50 / 22.5 / 0 kV

Friday, October 20, 2017, 11:30: HV spark (at 52.5 kV) tripped TP2 and TP1s resulting in IG1S and power supplies tripping.

Friday, October 20, 2017, 13:50: Gelo is troubleshooting flickering on/off of ANODE, TGHT and TBHT power supplies.

Friday, October 20, 2017, 13:51: BIAS / EL / EE at 50 / 25 / 0 kV

Friday, October 20, 2017, 14:26: BIAS / EL / EE at 55 / 28 / 0 kV

Friday, October 20, 2017, 14:37: TP2 tripped on spark

Friday, October 20, 2017, 14:51: Gelo has determined there is a communication problem with the PLC on the HV platform. Troubleshooting continues.

Friday, October 20, 2017, 19:02: Troubleshooting did not succeed. Not able to control power supplies. Troubleshooting continue on Monday.

Monday, October 23, 2017, 09:00: After starting the TCS again today communication has been reestablished. Started heater conditioning.

Monday, October 23, 2017, 14:03: Heater ramping previously aborted and ramp down started due to ongoing PLC communication issues. TGHT and TBHT power supplies tripped on timeout around 13:45. Gelo will continue the troubleshooting.

Monday, October 23, 2017, 19:55: Switching off source after operating for 5 hours without any communication glitches detected (fiber optic communication cables swapped between HV platform and BIAS/EZL PLCs)

Sic#35 has been installed onto TM2. High current fasteners torqued to 130 in lbs.

Mating of the 9 pin connector was extremely problematic but in the end I was able to get it to mate properly. Noticed left (when facing module in hot cell) febiad coil left twisted a bit when torqued up.

SiC#33 has been removed from TM2.

SiC#32 has been removed from TM2. Quick inspection shows some troubling discoloration on the water cooled connection blocks of C and D as well as the left target heater A.

As for the target, both legs are broken and is has the normal "charge up" marks on the 9 pin connector.

SiC#32 has been installed on TM2. High current fasteners torqued to 130 in lbs.

SiC#32 has been open for inspection.

SiC#31 has been removed from TM4 and UCx#13 installed. UCx#13 connection to the 9 pin connector was VERY VERY tight to the tube heater insulator on both the test jig and module.

Ta #45 has been removed from TM4 and SIC#31installed.

Extraction electrode was removed from SiC#31 and target inspected.

Pictures of findings can be found at          https://documents.triumf.ca/docushare/dsweb/View/Collection-15131