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

SiC#30 has been removed from TM3. A quick exam of TM3 source tray did not  yield any obvious signs of damage.

9 pin connector on the target showed the usual sparking/arcing marks.

Heat shield has been removed from the target. Inside of heat shield has some unusual marks on it and quite a lot of black deposits.

SiC#27 has been installed onto TM4. Fit was very good. All electrical connections double checked with mirror.

Pictures can be found at: http://documents.triumf.ca/docushare/dsweb/View/Collection-8530
 

SiC#26 was removed from target module #4 this morning. Target shows the now standard arc marks on the 9 pin connector housing...pictures to follow.

Of greater concern is the amount of "plating out" or "arc" marks on both the insulators and connductor of the TM4 source tray. I will again warn that the source trays historically have a life expectancy, and that TM4 continues to show visual signs that the current source tray is rapidly approaching the end of its useful life!

I understand that one of this years goals is to retrofit TM3; however I fear TM4(and possibly TM1) may fail before this can be released. With the current absence of backup source trays and modules I fear we leave the ISAC program in a very vulnerable position.

HP febiad target SiC#26 was installed onto Tm4 on Monday morning.

"JP's" connector required lossing of the two mounting fasteners. Connector was pushed tight to its mating half on the source tray and both fasteners retightened, and the mating checked; it was good.

Two new 7/8 long 3/8-16 fasteners were used for the febiad coil connections.

Installation went well.

Leak check was performed:

Base Pressure: 0.0x10-4

Stable leak rate 0.0x10-9

Left vcr joint was checked two times with a 2 second spray of helium with a 60 second waiting time between sprays; no response.

Right vcr joint was checked two times with a 2 second spray of helium with a 60 second waiting time between sprays; no response.

Fllod of system with a 6 second spray; no response.

I have inserted the test target for TM4 and the CS into the hot cell.

I had some concerns about the condition of the target which I have discussed with Pierre and he has cleared. Pictures are attached.

The shutter in TM2 was successfully replaced today.

New lock washer and nut were installed onto shutter and nut torqued to 120 ft lbs.

Shutter guide alignment tool was used to insure tapped shutter guide holes were concentric with thru holes in shutter side mounting panel, button head screws replaced and torqued to 110 ft-lbs.

The shutter was manually cycled open and closed by David and everything is to operate well.

TM2 has been successfully de-shuttered.

All went pretty much according to plan except I had to remove one fastener out of the upper wiring harness (the one that has just been installed) to allow for enough clearance to rotated the shutter guide out of the way...I shutter to think what would have happened otherwise...anyways...

Close inspection of the shutter does show that the "thin" area isn't in very good shape; whether this is a result of removal or just the way it was is hard.Due to the ease of removal I would quess that it may have been a preexisting condition. That being said...I think we may want to consider replacing it.

Stopped MP1 today in preparation for the power outage over the holidays. both P-25 and P-26 breakers have been switched off to prevent inadvertent start of system

 After conditioning over the weekend the EE developed a short. This was confirmed by measuring the resistance between EE and Heat Shield on the module yesterday.

David and I preformed a helium leak check on the service tray waterblocks and verify that no damage had been done during jig installation. All 14 circuits were checked and verified to be ok except circuit E and circuit I which were unstable when helium was applied. The resonse time on E and I would suggest that it is an issue with the bungs that were used and not the braze joint however.

I have inspected the service tray water block and suggest that they SHOULD be cleaned/polished before we install the new source tray.

The water blocks have slight water scalling to the inside of the ID of where the c seals locate.

I have taken two close up  pictures of each water block for reference and to document their current state. They can be found at http://documents.triumf.ca/docushare/dsweb/View/Collection-10841
 

Dragan Mitrovic, TRIUMF structural engineer, was consulted earlier this week regarding seismic requirements for the SMP assembly.  Installation location, overall dimensions, total weight, and the center of mass for assembly IRH1670 were provided to him by e-mail.  On Feb 20th he communicated verbally that he had analyzed the assembly for seismic loads, and concluded that this equipment does not require anchoring or any other form of seismic restraint.

Update (May 30, 2019): Confirmed with Dragan that the approach he used for analysis was that specified in the BC Building Code (both 2012 edition and updated 2018 edition).

A safety walkaround was completed for the ISAC Hot Cells and Target Hall Areas.

The resulting spreadsheet can be found on DocuShare as Document-242733.

Main deficiencies identified:

• Hot Cells:
  • Phone not working at North hot cell operator station
• Target Hall:
  • Uncertain if NHC and SHC ventilation pressure gauges have recently been inspected

Action has been taken on all deficiencies.

A safety walkaround was completed for the ISAC Hot Cells and Target Hall Areas.

The resulting spreadsheet can be found on DocuShare as Document-242733.

Main deficiencies identified:

• Hot Cells:
  • NHC right manipulator gripper stuck (known, repair planned)
• Target Hall:
  • 50% of overhead light bulbs burnt out (David Wang contacted Electrical Services to rectify)
  • One RH camera for target pit not working (Travis Cave notified)

Action has been taken on all deficiencies.