Plant Services group (Tony) will contact a service tech on Monday.

Water system will be switched off over the weekend.

Anders Mjos wrote:

Plant Services group (Tony) will contact a service tech on Monday. Water system will be switched off over the weekend.

Thursday, July 14, 2016, 13:24: Claus from Daikin is on site to troubleshoot.

The VFD driven fan motor has failed. Temporarily blocked air-flow through failed fan to improve air-flow to radiator. A new motor will be ordered (Curtis).

Thursday, July 14, 2016, 15:39: Stopped cooling system for the day

Friday, July 15, 2016, 08:16: Cooling system started

Friday, July 15, 2016, 15:00; Cooling system stopped.

Anders Mjos wrote:

Anders Mjos wrote: Plant Services group (Tony) will contact a service tech on Monday. Water system will be switched off over the weekend. Thursday, July 14, 2016, 13:24: Claus from Daikin is on site to troubleshoot. The VFD driven fan motor has failed. Temporarily blocked air-flow through failed fan to improve air-flow to radiator. A new motor will be ordered (Curtis). Thursday, July 14, 2016, 15:39: Stopped cooling system for the day Friday, July 15, 2016, 08:16: Cooling system started Friday, July 15, 2016, 15:00; Cooling system stopped.

 Thursday, August 18, 2016, 10:34: The motor was replaced today by Claus from Daikin. System is running normally again.

Bevan attempted to start pumping down on TM4 today remotely but there was an issue.  He will report on Monday.

I went into the Target Hall this afternoon while on the phone with Bevan and performed the following:

- Checked the knurled vent valves on the side of each turbo, both were found to be in the tightened position (all the way clockwise)

- Closed the VAT valve between the scroll pump and the nuclear ventilation

Update TH MS project schedule. See attachment 1,2.

Update 2017 winter shut down target hall schedule. See attachments

The 2A2M19 beam profile monitor did not work and was e-faulted. After initial troubleshooting 2 blocks were removed form ITW to inspect the entrance module where the beam monitor is installed. The cable was found not to be connected and was quickly fixed. Blocks reinstalled. The work was done by Maico, Travis and Anders

Ucx#10 has been removed from TM4 and placed in a pail with argon.

Ta#44 has been installed onto TM4 and target heater bolts torqed to 130 in.lbs.

Ucx#6 was installed on TM1 on Wednesday.

Ta#39 was removed.

UCx#30 has been removed from TM#4 and put in a can with argon. 5(10) pin connector had to have guide screws removed to be uninstalled.

UCx#31 P2N installed.

UOx was removed from TM4 yesterday and NiO#1 installed.

Video was taken.

Main stand-off insulators continue to deteriorate.

I connected the CS  vacuum system  to TM4. The CS and TM4 turbo pumps are started. Everything is good so far. The HS line will be pressured with helium tomorrow for leak checking. The CS and TM4 will be vented with Argon on Wednesday morning as planned before moved to ITE.

The UCx#9 target has been revomed from the target module...leg A was broken as suspected.

Ta#42 has been installed. High current connection fasteners torqued to 150 in lbs.

UCx #5 has been removed from TM4. The left oven leg is indeed broken.

Target has been placed in a pail with an argon feed.

UCx#46 removed from TM4 and placed into a pail back-filled with argon. Nothing visually unusual; no issues.

November 6, 2024 - Aaron Tam 

UCx#46 Target handover from TPO 

Target insertion: successful 

Parasitic Install: All Parasitic targets left off target

• Left side In-beam array type parasitic install attempt #1 
  • Parasitic assembly is too thin/studs too tall for the socket nut to fasten onto target. Stud protrudes through the length of socket section, not allowing tool to insert 
  • previously a 3/4 spacer was used to give space for thermal couple to enter 
  • Install of 3/4 spacer was difficult because it does not hold its shape when handled (pivots around 1/2 ad 1/4 portions) 
  • With spacer installed, parasitic assembly is too thick for socket nuts to fasten onto studs. 
    • It may have been possible to back out studs to use, but left off in the interest of time UCx is exposed. 

• Right side In-beam window type parasitic install
  • Similarly to Left side, studs were too short for install, studs could be backed out, but was left off in the interest of time UCx exposed

• PEEK seal parasitic targets were left off as per schedule, and will be leak checked at another date (after tong cable has been repaired) 
  • Order of PEEK seal locations preserved and follows order as seen with target installed (Photo attached)

Target install: successful 

Leak Check: Successful 

Electrical Check: Successful 

• Initially failed due to wiring diagram being different between production wiring diagram and electrical test sheet

Containment box panel closed 

On Wednesday, May 22, 2024 UCx#45 was installed on TM4 in the SHC. Installation was normal other then minor issue with the multipin connector drive screw not engaging and/or driving properly. This was remedied by loosening the left guide bolt slightly (1/2 turn). After loosening the multipin drove in and seated correctly (verified by camera). High current fasteners torqued to 130 in lbs.

 To deliver stable beam to RadMol, started heating UCx#43 up again. Target was overheated during initial conditioning in Nov but then ran well for 4 weeks. During the run time, the TGHT voltage jumped around and this was reflected in the ion current, but yields seemed unaffected.

When re-heating it, the TGHT voltage was very unstable and once it got to 440A, it went into voltage limiting mode. We ramped down and it was still voltage limiting, but turning things off solved it. We ramped back up and it did about the same thing. TBHT voltage and current remained steady. Looks like a heat generated issue.

Measured the resistance in the lines from the electrical room. Resistance of the lines to ITE should be 1.19mOhms for TGHT and 1.95mOhms for TBHT. TBHT positive to negative had a resistance of 7.9mOhms from the electrical room today, and 5.7mOhms on module top when measured Nov. 8. This seems to track.

TGHT positive to negative was measured at 27.6mOhms today (and was jumping around), whereas it was 7.14m Ohms on Nov. 8.

10V @ 440A is 22.7mOhms, so it makes sense that it limited. Tried with increased voltage (up to limit of 16V) but this didn't help. Declared the target dead on Jan. 11.

David measured resistances on the module top and found (in mOhms):

A-B = 27 (TGHT)

A-C = 7.473

A-D = 6.380

B-C = 26.053

B-D = 25.569

C-D = 5.212 (TBHT)

So looks like the tube is broken on the B side.

UCx#43 PIE was done in the SHC. As expected based on electrical measurements, the target container was broken on the right side and came off easily. Despite all the black stuff seen on the containment box and source tray, the inside of the heat shield was very clean. Checked if the Re foil was curled in and didn't see anything. Looked fine other than the broken container.

Starting at 11:00 am and finishing at 12:10 Ucx#4 previous target was removed and UCx#4 installed and leak checked on TM1.

During module move to the hot cell UCx#4 was housed in a bag under argon.