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.

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.

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

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

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

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

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

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

Test completed.

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

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

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

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.

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

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

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.

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

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

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.

One thing that seems to be strange regarding this FEBIAD is the best results are without any current in the coil.

Normally for the neon ionization the on-line source wanted to be at around 50 to 80 Amp. Not this one.

Is there anything special about this coil?

I am done with the FEBIAD test (anode biased)

We will swap the bias now to the cathode and change the polarity to negative.

This morning I try to contact PS group no one answer. Dan Louie is in vacation.

I went into the can diagnostics panel and reconfigure MB1 power supply.

This worked.

Archivers not running this morning. Started both ISACT and SOURCES

The reset restored the control.

But magnet supply does not put any amperage out.

Try turning it off and on. No chance.

I gave up. See tomorrow.