TM3 TP1 and TP2 work  fine in past 4 days. During operation, The current draw on pumps were 0.7A to 0.8 A. TM3 will be moved back to silo tomorrow.

 TM#3 has been moved from the conditioning station to the centre east silo.

 TM#3 has been moved from the silo to the conditioning station, where David and Frank will start on the gutting of the module.

 TM#3 has been moved from the conditioning station to the silo.

 TM#3 is now in the south hot cell.

TM3 has been moved from the Silo to the South Hot Cell.

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

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

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

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.

First thing I entered into the NHC to install to the target kart mounting clip, and remove excess tools and materials from the hotcell

After the TM3 without a target was lowered into the NHC.

Once inside, with the use of the manipulators, I was able to remove the containment box door, place it on the swivel arm, move the arm out of the way, after the door was return to the containment box and reattached.

Frank and I removed Tm3 from TCS to SHC. The move is successful.

On 2021-04-19, Frank and I remotely removed Tm3 from SHC to silo . The moving is successful.

TM3 was moved from the Silo to South Hot Cell.

TM3 has been moved from the target conditioning station to the south hot cell.

TM3 was moved from the SHC to the TCS (no target installed).

Tuesday, January 02, 2024, 15:58 :

Started HV ramp up on TM3 service tray about 3pm today. Had to bypass TCS:BIAS interlocks to make it work - there are some flow restrictions on the water lines that are causing the flow interlock to periodically trigger. The water flow it not very important for this test as long as the water is moving. Turned out that it was also conveninent to have all the interlocks bypassed because sparks tripped off the IG1 gauge and this did not cause the HV bias supply to turn off. Should use same setup next time.

Some sparking around 35-44kV, tripped off turbos/IG1/IG1S 3 times and so decided to ramp down.

Tried again while standing outside TH door to hear if sparking is outside the vacuum. Went to 48kV very slowy with multiple trips of the turbos, mostly TP2. Lots of sparks but easy to ramp back up to previous high point, so likely just a painful conditioning process. Current draw 167uA at 48kV. No sparks audible outside door, and vacuum response looks too large to be electrical noise.

Continued on Wednesday January 03 - went up to 53kV in the same way as before, lots of TP2 trips making its current a bit unstable... data was dumped as TM3_servicetray_conditioning_jan32023. Tried limiting the current on the power supply to very near the drain current to see if that reduces the number of trips. Didn't notice a significant effect.

Thursday, January 04, 2024, 09:57 :

Restarting conditioning, starting at 180uA at 53kV. Got up to around 60kV with many trips of the turbos, and one restart of the IG1 controller needed. Added a grounding hook to the vacuum controller rack to see if that helps reduce the trips. (doesnt appear to have).

Friday, January 05, 2024, 09:51 :

Continuing conditioning. Starting by sitting at 50kV for 10mins. No sparks observed during this time.

Even though we got to 60kV last time, onset of conditioning started at 58.6kV with a trip at 58.9kV... got up to 70kV.

Got to 72kV on Monday January 08 2024.

On Monday Jan. 15, tried to improve the grounding on the vacuum services rack to reduce sparking through the turbo controllers. Added two welding cables from the vacuum rack ground busbar to the copper grounding strip on the ground. If the spark is travelling from the faraday cage to the rack through conduit or grounding cables, maybe this will help. If it is coming through the turbo cable then it likely won't. Tried to add grounding straps on the turbo controller chassis (there is a brass screw which I think is for this purpose) but couldn't get either of the screws out with any resonable force. They undo a bit then get stuck...

 Wednesday, January 17, 2024, 20:39:

David vented TM3 with N, then opened the service cap to install new insulators. We pumped back down and Alexander and I ramped back up today - instabilities started around 55kV and we were back to slow conditioning in the high 50s. Got up to a set point of 65kV. Ray did some work on the TCS bias supply and now neither the set point or readback is correct. The PSU was reading 51.5kV at set point 50kV and 60kV at set point 58kV. Will continue later...

Wednesday, January 31, 2024, 16:23

Ramped up again, some slight instabiities around 56kV but could still go up pretty quick until about 65kV. Since Ray's testing of the TCS:BIAS supply both the readback and the set point are off from the powersupply display. Ran out of time and ramped down at set point 70.5.

Tuesday, February 06, 2024, 14:47

Testing again after venting the module with air. First tiny spark at 48, then some vacuum reactions starting at 49 but still no issues. Bit more reactive around 53.

 stopped at 69.4

Wednesday, February 07, 2024, 15:28 :

Ramped easily to 60kV set point and let it sit there. Didn't spark at all then after 100mins, sparked TP2 off. Otherwise first sparking happened at set point 67.

Found at limit at around 72.5 on the PSU front output, set point 70.6. think it comes from EPICS. Will have to test the power supply.... stopped there.

Thursday, February 08, 2024, 15:03 :

Long term testing. ramped back up, first spark at set point 65.

Let it sit for 2hrs 20mins. Something like 6 sparks during this time. Current also dropped significantly from 0.32A to 0.27A.

EDIT 2024-11-25, Alexander Shkuratoff:

All the StripTool data related to the above tests are on the server as the following below. Those without "Alexander" in the name were dumped by Carla.

	TM3_servicetray_conditioning_Jan32023	2024-01-03 17:29	807K
	20240103_TM3_Service_Tray_TCS_Alexander	2024-01-03 17:31	1.2M
	20240104_TM3_Service_Tray_TCS_Alexander	2024-01-04 16:58	238K
	20240104_TM3_Service_Tray_TCS_Alexander_2.csv	2024-01-05 07:00	13M
	20240104_TM3_Service_Tray_TCS_Alexander_1sec.csv	2024-01-05 12:21	81
	20240105_TM3_Service_Tray_TCS_Alexander.csv	2024-01-05 16:51	13M
	20240105_TM3_Service_Tray_TCS_Alexander_1sec.csv	2024-01-05 16:52	2.7M
	TM3_servicetray_conditioning_Jan52023	2024-01-05 21:24	8.8M
	20240108_TM3_Service_Tray_TCS_Alexander_1sec.csv	2024-01-08 16:56	4.7M
	20240108_TM3_Service_Tray_TCS_Alexander.csv	2024-01-08 16:56	7.1M

	TM3_servicetray_conditioning_Jan172024	2024-01-17 13:29	257K
	20240117_TM3_Service_Tray_TCS_Alexander.csv	2024-01-17 20:11	4.0M

	TM3_servicetray_conditioning_Jan312024	2024-01-31 17:24	2.2M
	20240131TM3_Service_Tray_TCS_Alexander.csv	2024-01-31 17:55	4.5M
	20240206_TM3_Service_Tray_TCS_Alexander.csv	2024-02-06 17:58	2.6M
	TM3_servicetray_conditioning_Feb62024	2024-02-06 19:29	4.6M
	TM3_servicetray_conditioning_Feb82024	2024-02-08 17:55	3.1M

 And the StripTool settings:

Alexander_TCS_HV_Conditioning.stp

2024-01-17 19:57

3.7K

After Tm3 service tray and service cap installation, TM3 service cap air to vacuum seals leak check has been done at TCS. TCS:IG1 and IG1S are at low E-7 torr range.  leak detector base  0.0XE-9 atm.cc/sec,  base pressure0.0X E-4 torr.  I sprayed helium to all new air to vacuum seals on service cap. No leak on seals. The leak check has been repeated  2 times with same result.   

Alignment notes attached for the optics tray for the refurbished tm3 with the new service and source tray.

*Note: Drive screw bracket sheared off during alignment check with source tray. The drive bracket was replaced. The optics tray was re checked. The front element was .015 to left and centered u/d. The rear element remained the same. The center element could not be checked to do the assembly.