TM#2 with Graphite #1 has been moved from the conditioning station to the south hot cell.

 Graphite #1 along with the broke 2A2M19 wire scanner have been placed in the spent target vault see attached PDF for deatails.

 TM2 with a test target was disconnected in ITW.

 TM2 was connected in ITW with a Febiad Test Target. 

 A Test Febiad Target was installed and checked at SHC. 

Friday, November 06, 2015, 14:35: Roughing

Turbos was started around 4pm. Later it was found that the manual valve for the two turbo pumps on the service cap was closed. The valve was open and pumping resumed. The roughing vacuum was high and increased into Saturday morning. The vacuum system was switched off on Saturday.

Purged MP1 using the purging function. Performance recovered. Started rouging.

Monday, November 09, 2015, 09:18: Started TP1S

Monday, November 09, 2015, 09:22: Started TP1 and TP2

Monday, November 09, 2015, 09:33: All 3 turbos at speed

Leak found on F/T for multipin connector

Tuesday, November 10, 2015, 09:53: stopped turbos

Tuesday, November 10, 2015, 16:53: Roughing

Tuesday, November 10, 2015, 18:24: TP1S started

Tuesday, November 10, 2015, 18:30: TP1 and TP2 started

Tuesday, November 10, 2015, 18:41: All 3 turbos at speed.

Thursday, November 12, 2015, 08:30: Purged backing pump using purging function. Vacuum in backing line recovered to previous value. 

Module connected for HV testing. No target heating possible. All F/Ts tied together to HV common. EZL connected.

Friday, November 13, 2015, 11:20: Started water package

Friday, November 13, 2015, 11:52: 1kV on BIAS and 1 kV on EL

Friday, November 13, 2015, 12:54: BIAS/EL 10 / 5 kV

Friday, November 13, 2015, 12:59: BIAS/EL 15 / 7.5 kV

Friday, November 13, 2015, 13:04: BIAS/EL 20 / 10 kV

Friday, November 13, 2015, 13:08 : BIAS/EL 22 / 11 kV. Some sparks.

Friday, November 13, 2015, 13:17: Sparking at 22.5 kV. Had to return to 20 kV to recover. Back at 22.5

Friday, November 13, 2015, 13:21 : BIAS/EL 24 / 12 kV. 

 Friday, November 13, 2015, 13:27: Heavy spakring around 24.5 kV. Had to return to 20 kV to recover.

Friday, November 13, 2015, 13:31: Attempted to increase voltage again. Sparking started around 23 kV. Had to lower to 20 kV.

Friday, November 13, 2015, 13:36: 9 sparks for the last 5 min.

Friday, November 13, 2015, 13:45: Spark rate reduced, but multiple sparks encountered again at 20.5 kV. Reduced back to 20 kV

Friday, November 13, 2015, 13:50: Increased sparking at 20 kV. Had to lower to 18 kV

Friday, November 13, 2015, 14:07: Back at 20 kV

Friday, November 13, 2015, 14:13: BIAS and EL off

Monday, November 16, 2015, 08:18: Fault on chiller. Reset chiller unit on the roof.

Yesterday TM2 was inspected in the SHC. Spark marks were found both on the steerer wires and on the ANODE wire. The steerer wires (GND)  were touching the gas lines (60kV). This is likely the cause of the sparking observed at the Conditioning Station (e-log).

Photos are available on DocuShare

Service cap leak checked this afternoon. Found multiple leaks of 10E-8 to 10E-7 range. Connected to the backing line with IG1 at ~4E-6 T, CG1A around 40 mT. Got responses around large round flange on top, rectangular side panels, water f/t on GND and water f/t on HV. Will resume leak checking tomorrow to attempt to pinpoint sources of leak more accurately.

Target to Anode and target to Common showed ~ 500 kOhm values. No leaks above 3E-9 atm-cc/s seen. See attached.  

 Problem found between ANODE (F) and chassis 90 kOhm. See attachment for details.

ISAC operators attempted HV conditioning over the weekend.

https://web.accel.triumf.ca/isac_elog/Elog_show_result.pl?inid=218447&style=entry

Today, the commissioning of the TCS went well. The water/vacuum interlocks were checked OK. Then, the TCS was HV conditioned up to 33kV.

Tomorrow, the heaters will be ramped up.

After few hickups the TCS was successfuly commissioned.

In the morning, in the middle of the heaters conditioning: 360A/250A for the TGHT/TBHT, the target heater PS tripped and it didn't recover immediately.  I cannot tell if the card is still OK. Before this even, there were few bias current sparks created when the ionized tube was raised above 250A; this also tripped the Einzel lens. Re-started the Heaters, and did the conditioning with the rest (HV, Optics) Off. After the heaters were at nominal values, raised the rest: HV to 30kV and the Optics. And everything held fine. The current on the FC was 3micro-Amperes. The water temperature levels stayed below 25 deg Celsius.

The problems that need to be fixed:

1. The biggest problem was created by the target power supply: the new card is not calibrated, the voltage is not regulating, but the main problem is the grounding of the output of power supply. Friedhelm measured 0.2V across the return and the cage (200mili-ohms resistance) .  This was probably overlooked.

2. The Auto-ramping routine didn't work. Controls would need to fix this.

3. The RGA didn't want to connect from the account Don created for me. So, we have only a RGA scan taken on Friday by Don, when the target was cold.

Aurelia Laxdal wrote:

After few hickups the TCS was successfuly commissioned. In the morning, in the middle of the heaters conditioning: 360A/250A for the TGHT/TBHT, the target heater PS tripped and it didn't recover immediately.  I cannot tell if the card is still OK. Before this even, there were few bias current sparks created when the ionized tube was raised above 250A; this also tripped the Einzel lens. Re-started the Heaters, and did the conditioning with the rest (HV, Optics) Off. After the heaters were at nominal values, raised the rest: HV to 30kV and the Optics. And everything held fine. The current on the FC was 3micro-Amperes. The water temperature levels stayed below 25 deg Celsius. The problems that need to be fixed: 1. The biggest problem was created by the target power supply: the new card is not calibrated, the voltage is not regulating, but the main problem is the grounding of the output of power supply. Friedhelm measured 0.2V across the return and the cage (200mili-ohms resistance) .  This was probably overlooked. 2. The Auto-ramping routine didn't work. Controls would need to fix this. 3. The RGA didn't want to connect from the account Don created for me. So, we have only a RGA scan taken on Friday by Don, when the target was cold.

 Response to item 1. 

This morning I investigated the output of the TGHT power supply. The negative output of the power supply is tied to common as per ISK4574D Rev 7 (attached) and the released drawing IRH1511 Rev A (PDF attached but officially located in the SW vault). If this is not the intent of the IRH1511 should be released to Rev C reflecting the desired configuration. 

 In regards to the calibration of the card I will inform the PS group. 

All the F-308's can back from being certified at Nordion.  All of the F-308's have been serviced and are ready to be filled with spent targets.

Four empty F-308s just arrived back at Triumf. I moved them  from shipping to the Remote Handling Shop for service and inspection. I will work on them when not busy with my other shutdown work. ( Cyclotron work)

The new module move ventilation procedure was successfully tested (ITM:MP2). ITM:CM4 did not drop below 6 in during the test.

 The East Entrance Module has been moved from the East Target Station to the South Hot Cell.

Bill and I moved TM3 from SHC to NW silo with a dummy febiad target installed on it. The move is smooth.