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  Test-Stand, Page 16 of 53  Not logged in ELOG logo
ID Date Author Target/No.# Source Stationdown Module Target Oven W.O# Heat Shield W.O# Status Subject
  155   Thursday, August 09, 2012, 13:08 Pierre Bricault       Test FEBIAD

Waiting Rick for the fitting on the vacuum pump.

  156   Friday, August 10, 2012, 11:29 Pierre BricaultNA   N ANAIn progressTest FEBIAD

The helium bottle was found empty.

Rick will refill it and hook the leak detector on the system to find out

if we have a leak on the line.

 

  157   Friday, August 10, 2012, 12:44 Pierre BricaultNALP-FEBIAD  NANAIn progressFEBIAD test

Rick put the helium bottle back in the rack.

Waiting for status of the gas lines.

 

  158   Friday, August 10, 2012, 13:48 Anders Mjos      Problems/SolutionsHe line leak checked - leak fixed

A major leak was found on the connection to the regulation valve on the He bottle. Ferrule replaced. System leak checked.

After He bottle: base 5E-6, no response to He spray

AfterSV1: base 5E-7, no response

After SV2: base 4E-7, no response

The system should now be operational. Gas lines were evacuated with the leak checker.

  159   Friday, August 10, 2012, 14:08 Rick Maharaj       Gas line pump

Gas line vacuum pump reinstalled after fitting was modified to receive a standard swagelok connector. The vacuum line was plumbed using 1/4" copper tube (not Stainless) for the the ability to flex and manipulate the line for pump removal and and insertion.

  160   Friday, August 10, 2012, 15:29 Pierre BricaultNALP-FEBIAD  NANA finishing the gas installation and its pump

1524H Start small pump.

1529H stop the pump.

 

  161   Friday, August 10, 2012, 15:57 Pierre Bricault        

Test high voltage to 30 kV ok

Test gas valve open at 6.1 V

Test Ne leak ok

Will run test from home.

 

  162   Saturday, August 11, 2012, 13:34 Pierre BricaultNALP-FEBIAD  NANAIn progressTest FEBIAD anode bias 120 V
  163   Saturday, August 11, 2012, 16:18 Pierre Bricault       Test FEBIAD anode biased at 120 V

The ramp up finished.

I have 3.35E-6 Amp out of the source on FC0.

Vacuum  4.3 E-7 T increase Coil current to 40 A. No effect on vac.

Increase coil to 50 A. Vacuum still good.

I will continue from home..

  164   Sunday, August 12, 2012, 21:50 Pierre Bricault      In progressTest FEBIAD

Lost communication with EPICS. Came in reset the ...

So far no luck.

 

  165   Sunday, August 12, 2012, 22:07 Pierre Bricault      In progressFBIAD test

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.

  166   Monday, August 13, 2012, 08:39 Anders Mjos      Problems/SolutionsStarted Archivers

Archivers not running this morning. Started both ISACT and SOURCES

  167   Monday, August 13, 2012, 10:59 Pierre Bricault      Problems/SolutionsTest FEBIAD

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.

 

  168   Monday, August 13, 2012, 14:26 Pierre Bricault      In progressFEBIAD test

I am done with the FEBIAD test (anode biased)

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

  169   Monday, August 13, 2012, 14:56 Pierre Bricault      In progressFEBIAD test

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?

 

  170   Thursday, August 16, 2012, 10:41 Pierre Bricault      In progressTest FEBIAD

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.

 

  171   Thursday, August 16, 2012, 15:30 Anders Mjos      Problems/SolutionsVenting to investigate short between anode - cathode

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

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

  172   Thursday, August 16, 2012, 16:54 Anders Mjos      Problems/SolutionsShort between gas line and heat shield

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.

  173   Thursday, August 16, 2012, 16:56 Anders Mjos      Problems/SolutionsTarget heater PS disconnected from controls.

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

  174   Thursday, August 16, 2012, 16:56 Anders Mjos      In progressPumping down after troubleshooting

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

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