Ray is finishing the electrical modifications for the FEBIAD with the biased cathode.

We found the source of the sparks. The disconnected target heater cables were resting on the Einzel lens cap.

Thursday, August 16, 2012, 15:29: Turbos off

Thursday, August 16, 2012, 15:50 : Venting

There was a short between the gas line and the heat shield - as the gas line insulator was not tied to the heat shield. A Ta-wire was used to tie the gas line and keep it from touching the heat shield.

As per Ray Dube for the FEBIAD anode bias test. The PS will need to be reconnected before a target is run.

Thursday, August 16, 2012, 17:04 : Starting turbos

Thursday, August 16, 2012, 17:09 : TP1B at speed

Thursday, August 16, 2012, 17:13 : TP1A at speed (after 1 time out)

Thursday, August 16, 2012, 17:14 : Vacuum at 1.8E-5

Yesterday Ray Dube has changed the configuration in order to run the FEBIAD with the cathode on negative bias.

There were a short between the gas line and the common. The box has been opened and the short removed.

This morning I am turning on the cathode heater to 290 A.

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

Test completed.

exel file on My Documents in folder FEBIAD Test Aout2012/TestFEBIAD

 Edited by Anders 2012-09-19, file attached.

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, 10:40: Replacing TMSRP2 with Edi. E-fault 6261.

Thursday, August 23, 2012, 10:49: TMSRP2 replaced and started.

The fuse for both roughing pumps blows when roughing the chamber. With the help from Edi: disconnect the exhaust port on the roughing pump for the first few hundred torrs of roughing. Reconnect and continue.

Seems the roughing pump RP1  pushes air towards the exhaust of RP2 which blows the fuse

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.

Anders Mjos wrote:

Thursday, August 23, 2012, 10:40: Replacing TMSRP2 with Edi. E-fault 6261. Thursday, August 23, 2012, 10:49: TMSRP2 replaced and started.

Edi will replace TMSRP2 again as it became noisy since yesterday morning. Vacuum should not be affected by the work.

start high voltage and heaters

mass scan is finished saved as

http://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/plotdump-local-clean.txt_Sep7_12_13-01-51.txt

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

Backing pressures TSG:CG1A/B are fluctuating between 0.02 and 0.05 since Sept 17th at ~17h. Expected values <0.01.

 Test stand was off this morning and EPICS controls in "white-out". Controls is looking into it.

Update  13:51:

Controls have reestablished contact with the PLC.

See e-fault 6329

Tried to start the pump from another power outlet with Edi. No luck. Pump will be replaced tomorrow.