 Thursday, June 28, 2012, 17:00, Pierre Bricault, , LP-FEBIAD, , , , , In progress, Cathode heater reached its value of 230 A and stoped. good test.
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Now ramp cathode current up to 290 A. The total current out is 1.e-7 A.
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Thursday, June 28, 2012, 17:18, Pierre Bricault, , LP-FEBIAD, , , , , In progress, Leave the cathode heater at 275 A overninght.
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Friday, June 29, 2012, 08:57, Pierre Bricault, , LP-FEBIAD, , , , , In progress, Continue cathode heating
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This morning the pressure was 3.5E-7 T. Current at 275 A is 30nA.
Continue cathode heating to 290 A during meeting.
Start seeing some electron current from the cathode around 275 A. |
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Tuesday, July 03, 2012, 09:23, Friedhelm Ames, , , , , , , In progress, start up again
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| purged Ne line and started cathode heater ramp up to 295 A |
Wednesday, July 04, 2012, 15:37, Anders Mjos, FEBIAD anode end cap test, , , , , , In progress, Pumping down 
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Replaced grid containing ring (target side) with new ring. No contact between target and anode measured in lab.
NOTE: While closing up the VCR fittings the tube rotated causing the tube to flatten in a bend. This may reduce water flow on the heat shield circuit.
(see attachment) |
 Thursday, July 05, 2012, 08:41, Anders Mjos, FEBIAD anode end cap test, , , , , , In progress, Water opened - reduced flow heat shield
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Anders Mjos wrote:
Replaced grid containing ring (target side) with new ring. No contact between target and anode measured in lab. |
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Thursday, July 05, 2012, 11:00, Friedhelm Ames, , , , , , , In progress, source started up again
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| tube heater ramping started |
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Wednesday, July 11, 2012, 11:16, Anders Mjos, , , , , , , In progress, Pumping down - with new turbo pump
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Thursday, July 12, 2012, 09:44, Anders Mjos, , , , , , , In progress, Venting
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System will be vented and gas lines purged with air, then nitrogen.
Thursday, July 12, 2012, 09:43: Shut down TSGTP1B. |
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Monday, July 16, 2012, 15:46, Anders Mjos, , , , , , , In progress, Pumping down
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Monday, July 16, 2012, 15:11: Roughing.
Monday, July 16, 2012, 15:38: Turbos started.
Monday, July 16, 2012, 15:46: TSGTP1B at speed TSGTP1A timeout. |
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Friday, August 10, 2012, 11:29, Pierre Bricault, NA, , , , N A, NA, In progress, Test FEBIAD
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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. |
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Friday, August 10, 2012, 12:44, Pierre Bricault, NA, LP-FEBIAD, , , NA, NA, In progress, FEBIAD test
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Rick put the helium bottle back in the rack.
Waiting for status of the gas lines.
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Saturday, August 11, 2012, 13:34, Pierre Bricault, NA, LP-FEBIAD, , , NA, NA, In progress, Test FEBIAD anode bias 120 V
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Sunday, August 12, 2012, 21:50, Pierre Bricault, , , , , , , In progress, Test FEBIAD
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Lost communication with EPICS. Came in reset the ...
So far no luck.
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Sunday, August 12, 2012, 22:07, Pierre Bricault, , , , , , , In progress, FBIAD test
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The reset restored the control.
But magnet supply does not put any amperage out.
Try turning it off and on. No chance. |
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Monday, August 13, 2012, 14:26, Pierre Bricault, , , , , , , In progress, FEBIAD test
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I am done with the FEBIAD test (anode biased)
We will swap the bias now to the cathode and change the polarity to negative. |
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Monday, August 13, 2012, 14:56, Pierre Bricault, , , , , , , In progress, FEBIAD test
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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? |
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Thursday, August 16, 2012, 10:41, Pierre Bricault, , , , , , , In progress, Test FEBIAD
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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.
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Thursday, August 16, 2012, 16:56, Anders Mjos, , , , , , , In progress, Pumping down after troubleshooting
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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) |
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Friday, August 17, 2012, 08:30, Pierre Bricault, , , , , , , In progress, FEBIAD test with cathode biased
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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. |
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