Backing pressure on the bender section is quite large. TMSIG6 reads 5.09E-7 T and TMS:CG2B reads 0.249 T!

Thursday, August 23, 2012, 10:10: Vacuum 2.1E-7

Thursday, August 23, 2012, 10:10: Stopped both turbos.

Thursday, August 23, 2012, 10:20: Water purged.

Thursday, August 23, 2012, 10:53: Venting

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

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.

When turned ON it was not going higher than 3.6A (EPICS/front panel). Kazuya checked the connections at the back and also the EPICS/PLC/PS input/output signals. He compared these values with the similar once of the TSH:TBHT PS (which is also a Xantrex PS 10-600). E-Fault 6275

It turned out to be the connections on the top of the ion source box: the target heater was not connected and the power supply was not seeing the load. Tomorrow we'll check all the top connections, with the corresponding power supplies.

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

Did another mass scan at 280A for the ionizer:

Plotdump-local-clean.txt Aug30 12 14-28-14.txt

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

Ramping up the TBHT from 280A -> 290A

And from 290A -> 300A:

Plotdump-local-clean.txt Aug30 12 16-40-29.txt

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

Started the cooldown.

Friday, August 31, 2012, 15:19: roughing

Friday, August 31, 2012, 15:39 : starting turbos

Friday, August 31, 2012, 15:44 : TP1B at speed

Friday, August 31, 2012, 15:48 : TP1A timed out

Friday, August 31, 2012, 15:48 : TP1A restarted. at speed.

Friday, August 31, 2012, 15:49 : both turbos at speed. Vacuum @2.7E-5

mass scan has been started after optimization on 23Na

start cooldown. Found computer at teststand off. Somebody tried to login with username ARIEL.

Wednesday, September 12, 2012, 08:01: Turbos off

Wednesday, September 12, 2012, 13:35: Venting, water off and purged.

Wednesday, September 12, 2012, 13:55: Vented

Replaced swollen insulator and added Ta heat shield on insulator.

Wednesday, September 12, 2012, 17:03: Roughing

Wednesday, September 12, 2012, 17:23 : Starting turbos

Wednesday, September 12, 2012, 17:32 : Turbos at speed

Wednesday, September 12, 2012, 17:33 : Vacuum at 3.2E-5

Thursday, September 13, 2012, 08:16: Opened up cooling water. Vacuum (IG1) increased from 5.9E-7 to 6.2E-7 before returning to 5.9E-7. Similar response on IG6 (valve closed). Response is however similar to previous (short time ~5 min) vacuum fluctuations.

Friday, September 14, 2012, 16:33: Roughing

Friday, September 14, 2012, 16:57: Starting turbos

Friday, September 14, 2012, 17:05 : Turbos at speed

Friday, September 14, 2012, 17:07: Vacuum at 8.7E-6

Thursday, September 20, 2012, 14:24: Turbos off

Thursday, September 20, 2012, 15:20: Venting

Thursday, September 20, 2012, 15:50: Roughing

Thursday, September 20, 2012, 15:54: Aborting. VCR for gas line not connected.

Thursday, September 20, 2012, 16:09: Roughing

Thursday, September 20, 2012, 16:29: Starting turbos

Thursday, September 20, 2012, 16:38 : Turbos at speed

Thursday, September 20, 2012, 16:39 : Vacuum at 1.3E-5 torr

Anders Mjos wrote:

Thursday, September 20, 2012, 15:50: Roughing Thursday, September 20, 2012, 15:54: Aborting. VCR for gas line not connected. Thursday, September 20, 2012, 16:09: Roughing Thursday, September 20, 2012, 16:29: Starting turbos Thursday, September 20, 2012, 16:38 : Turbos at speed Thursday, September 20, 2012, 16:39 : Vacuum at 1.3E-5 torr

 Friday, September 21, 2012, 08:19: Cooling water on. Vacuum stable at 2.3E-7 torr.

The source was used yesterday for operator training.

Today, I found the source off: the ISAC PLC Status was stopped. Kazuya re-started the PLC. I will re-start the source.