TM3 has been moved from the South Hot Cell to the Conditioning Station. No containment box.

TM3 was remotely moved from the South Hot Cell to the conditioning station. No containment box.

TM4 is moved from TCS to SW silo. The moving is smooth.

TCS leak check: TCS IG1S1.6 XE- 6 torr. LD  0.0XE-9atm.cc/sec.We used a long pole to spray helium to TCS vacuum seals on diagnostic box and vessel body. Lots helium have been sprayed around the check area.  no leak has been found.

TM3 has been moved from silo to NHC. The move is successful. NHC ram stand and NHC protection railings are checked and installed. Everything works fine.

2021-03-05. TM3 has been moved from NHC to silo. The move is successful.

By Curtis. See Work Permit I2021-03-24-1 for details.

A contractor on site today for chiller maintenance. CP2 and CP3 circuit is leaking and shall not be used. CP1 can still be used. The contractor will contact Plant Group with a quote for repair and upgrades.

Tank refilled from 12 in to 25 in using the new valve.

Leak checked TM2 service cap at TCS. helium pressure checked containment box window and HS cooling lines.  No leak on service cap and waterlines.

Remotely remove TM4 (ta# 62) from SHC to TCS.  The moving is smooth.

TM4 was moved from the South Hot Cell to the Conditioning Station.

Helium pressure test on TM4 HS line at TCS is done.  LD base leak rate 0.0 xE-9 atm.cc/sec. Helium pressure 70psi. HS line had been helium pressurized for 5 minutes during the test. No response on LD. HS line with Ta#63 is leak free.

TM2 is in the TCS without containment box for HV testing following the installation of the IGLIS wiring.

Not great results so far - sat at 42.5kV for nearly 2 hours, current around 200uA and occasional sparks. I did not have time to go higher, will do this tomorrow. The sparks could be conditioning but it looks a bit suspicious to me. We will see if the ramp up tomorrow is very easy and how high we can go. I have data from HV testing of TM2 in December for comparison.

The EZL was reacting to all sparks, so I went into the target hall to see if it was sparking on the module top, but there was no sparking there.

Possible mitigations:

1. Re-do the connections on top of the service cap to remove the extra length on the wires inside the service cap and inspect the routing carefully to make sure nothing is in the wron place.
2. Inspect the wiring in the source tray to see if there is evidence of sparking in a certain area.

Second round of testing Tuesday April 5 2022:

Much better results, seems most of the sparking was conditioning. Went right up to 42.5kV with no issues. Spent quite a while getting up to 50kV, and didn't leave it there for more than a couple mins. May be running into the limitations of the HV cage at this point. Bias current was much lower, something like 140uA at 45kV.

Third round of testing Wednesday April 6 2022:

Ramped easily back to 45kV, a little more sparking above that. Sat at 47kV for ~30mins with no sparks. Won't try to go higher in case of issues with the cage. Will try to condition up to 50kV in the station. Other than the possible low megger value between B and C, all looks good.

With Ta#64 installed , TM4 HS line was helium pressure tested at TCS. base leak rate is 0.0XE-9 atm.cc/sec. HS line tested leak rate is 3x E-7 atm.cc/sec on 5 minutes 50 psi helium testing. Leak check result wasgood at NHC by helium spray method. We decided to apply water to HS and all other water lines still. The vacuum status is closely being watched. So far, TCS pumping down trend is still good. HS line supply water valve was switched on and off couple of times at TCS IG1 1.15 XE-6 range, and no vacuum spike was observed. More information will be logged in during the TM4 and target conditioning stage at TCS. 

HS line helium pressure test is done at TCS. No leak. I also leak checked gasline adapter and fittings on TM4 top. No leak.  1/4 copper gas line between module and ITE was leak checked yesterday. It is good.

TM2 with UCX#39 HS line helium pressure test is done at TCS. 70 psi helium 3minutes. No leak @0.0XE-9 atm.cc/sec.

TM4 HS line helium pressure test is done. 70psi helium pressure@ 3XE-8 atm.cc/sec . No leak.

During the last ITE run with the SiC#44 target, the ITE:TBHT controls card was fried twice. The first time we put in our spare, and the second time we just continued to run without controls readback. For the C#4 run starting Oct. 19, we used the conditioning station supply. As soon as one of the other supplies is fixed, we will install it in the conditioning station. The equipment list (https://triumfoffice365-my.sharepoint.com/:x:/g/personal/cbabcock_triumf_ca/EQPffP4p1P9JqEDWIHGRPfsBVDSQjMCv-M8ZNg4ngkyGHw?e=fnLVYe) tracks these movements.

Helium 70 psi. tested 5minutes at base leak rate 0.9 xE09 atm.cc/sec on HS line.  No leak.

TM4 was moved from the North Hot Cell to the Target Conditioning Station with UCx#41.