Started the HV conditioning: TSG:BIAS=30kV

Started the heaters conditioning: TGHT up to 580A and TBHT up to 230A.

Today, did a did a mass scan: plotdump-local-clean.txt Sep30 11 12-20-08.txt

Optimized a bit the tune with Friedhelm, then started the Target Cooldown.

Turned off the HV and locked up the transformer. Isolated the ion source box. The target is under vacuum and the water is still on.

Aurelia Laxdal wrote:

Turned off the HV and locked up the transformer. Isolated the ion source box. The target is under vacuum and the water is still on.

 Monday, October 03, 2011, 13:45: Venting.

Anders Mjos wrote:

Aurelia Laxdal wrote: Turned off the HV and locked up the transformer. Isolated the ion source box. The target is under vacuum and the water is still on.  Monday, October 03, 2011, 13:45: Venting.

 Monday, October 03, 2011, 14:45

• Target was visually  inspected and found to be ready to go online.
• No burn marks found on the 9-pin connectors.
• Pumping down. Target will be stored under vacuum for now. Target is scheduled to go to Hot Cell on Oct. 20th. Electrical connections (target/tube heater + coil) are not connected

Anders Mjos wrote:

Anders Mjos wrote: Aurelia Laxdal wrote: Turned off the HV and locked up the transformer. Isolated the ion source box. The target is under vacuum and the water is still on.  Monday, October 03, 2011, 13:45: Venting.  Monday, October 03, 2011, 14:45 Target was visually  inspected and found to be ready to go online. No burn marks found on the 9-pin connectors. Pumping down. Target will be stored under vacuum for now. Target is scheduled to go to Hot Cell on Oct. 20th. Electrical connections (target/tube heater + coil) are not connected

 Wednesday, October 12, 2011, 13:15: Venting

Wednesday, October 12, 2011, 14:15: Target brought back to lab for inspection and final check.

Rick and John installed the ITE-TM4-SiC#27-HP-SIS-May2012 in the Test Stand. Pumping down.

The vacuum on TSGIG1 reads 2.85e-07. Turing on water on teststand and observing any changes in vacuum pressure.

 Tuesday, May 15, 2012, 10:13: Turbo pumps at speed. Vacuum at 1.4E-5.

Tuesday, May 15, 2012, 12:03: Cooling lines opened. Vacuum stable at 1.6E-6

Tuesday, May 15, 2012, 12:17: Target ready to be heated and biased.

Did the HV conditioning up to 30kV and started to ramp up the heaters to 580A and 230A.

Today: did a mass scan at 580A on TGHT and 230A on TBHT at 30kV. Found some A/q units discrepancies on the mass scan page. It may be a hall probe problem:  under investigations.

Uploaded the testing file on Docushare: http://documents.triumf.ca/docushare/dsweb/View/Collection-8539/Document-56575

Started the cool down.

Thursday, May 17, 2012, 08:36: Turbo pumps switched off in preparation of target removal.

Thursday, May 17, 2012, 08:51: Purging cooling lines.

Thursday, May 17, 2012, 08:55: Venting.

Thursday, May 17, 2012, 09:21: Target removed

Anders Mjos wrote:

A chip of insulator material was detected below the lower target insulator stand-off (attachment - left picture). The chip may come from the tube heater insulator above (attachment - right picture). The chip will be further investigated when the target is removed.

 The chip came from the lower insulator stand-off on the target assembly (see attachment). After investigating the chipped insulator, it was decided (Pierre, Friedhelm, Anders) not to replace it - as the risk involved may be less than the risk involved in replacing.

 Thursday, May 17, 2012, 13:15

After the test-stand, the EE was removed for inspection.  It was discovered that there were some solid residues coated on the extraction electrode and the common plate, but the ionizer tube was clean (see attachment#1).  Some samples were collected and will try to do some analysis.  This problem has been seen before but it's still not clear why the solid residues form after the test-stand.  

The EE & the common plate were cleaned with acetone and re-assembled back to the target.  

Thursday, August 23, 2012, 11:38: NiO#1 installed.

Thursday, August 23, 2012, 11:38: Started roughing. Both roughing pumps timed out.

Thursday, August 23, 2012, 11:54: Roughing.

Thursday, August 23, 2012, 12:12 : Starting turbos.

Thursday, August 23, 2012, 12:16 : TP1B at speed.

Thursday, August 23, 2012, 12:20 : TP1A timed out. Restarted.

Thursday, August 23, 2012, 12:20 : Turbos at speed. Vacuum at 2.5E-5

Thursday, August 23, 2012, 12:22: Vacuum at 2E-5

Friday, August 24, 2012, 08:26: Vacuum at 3.1E-7

Anders Mjos wrote:

Thursday, August 23, 2012, 11:38: NiO#1 installed. Thursday, August 23, 2012, 11:38: Started roughing. Both roughing pumps timed out. Thursday, August 23, 2012, 11:54: Roughing. Thursday, August 23, 2012, 12:12 : Starting turbos. Thursday, August 23, 2012, 12:16 : TP1B at speed. Thursday, August 23, 2012, 12:20 : TP1A timed out. Restarted. Thursday, August 23, 2012, 12:20 : Turbos at speed. Vacuum at 2.5E-5 Thursday, August 23, 2012, 12:22: Vacuum at 2E-5 Friday, August 24, 2012, 08:26: Vacuum at 3.1E-7

 Friday, August 24, 2012, 08:28: Opened water lines. No response in vacuum. Stable at 3.1E-7

Did HV conditioning up to TSG:BIAS=30kV, TSH=EE=-600V

Turned off the HV for Kazuya to check the connection/output of the TSG:TGHT Xantrex power supply.

Tested the power supplies and locked up the HV cage.

Turned on the HV: 30kV.

Tomorrow we'll start up the heaters: 580A for the target and 280-300A for the tube.

Friedhelm checked the voltage across R4 from ISK4563D-rev2.pdf. It shows 50 kOhms with the power supplies off and everything connected according to the drawing. With the Anode PS On and set at 20V, we could see the same readback on EPICS and on the meter.

Then started the heater ramping: auto ramp 2A/min.

We'd be watching the vacuum carefully during this process. Also the setup is such that:

- the target and tube heaters are only incremented if the vacuum is less than 5e-6Torr

- and if the vacuum exceeds 2e-5Torr the last increment of the target and tube heater is backed off.

Pierre asked for the 2e-5Torr limit to be changed to 8e-6Torr.

Anders asked to stop the heating at 500A to take a temperature measurement.

Raising the target heater from 500A to 580A.

Did a mass scan at TGHT=580A & TBHT=280A:  Plotdump-local-clean.txt Aug29 12 19-53-16.txt

http://isacwserv.triumf.ca/onlylocal/isac/IsacInternalFrameSet.html