 Tuesday, May 15, 2012, 09:46, Rick Maharaj, , , , , , , , target reinstalled pumping started
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Wednesday, May 16, 2012, 16:01, Anders Mjos, , , , , , , Problems/Solutions, Loose chip of insulator material detected 
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A chip of insulator material was detected below the lower target insulator stand-off (attachment - left picture). The chip may come from the tube heater insulator above (attachment - right picture). The chip will be further investigated when the target is removed. |
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Wednesday, May 16, 2012, 18:10, Aurelia Laxdal, , , ITE, TM4, , , , SiC#27 cooling down
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Today: did a mass scan at 580A on TGHT and 230A on TBHT at 30kV. Found some A/q units discrepancies on the mass scan page. It may be a hall probe problem: under investigations.
Uploaded the testing file on Docushare: http://documents.triumf.ca/docushare/dsweb/View/Collection-8539/Document-56575
Started the cool down. |
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Wednesday, May 16, 2012, 19:55, Friedhelm Ames, , , , , , , Problems/Solutions, Hall probe reading wrong
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During the mass scan today it was discovered, that the mass calibration was off. Further investigation showed, that the Hall probe readings are a factor of 1.31 lower than during previous measurements. A fault report has been issued to controls. |
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Thursday, May 17, 2012, 15:14, Anders Mjos, , , , , , , , Pumping down empty chamber
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Thursday, May 17, 2012, 15:14: Started roughing. Cooling lines blanked off.
Thursday, May 17, 2012, 16:52: Starting turbos.
Thursday, May 17, 2012, 17:00: Turbos at speed. Vacuum at 1.5E-5. |
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Thursday, May 31, 2012, 14:46, Anders Mjos, , , , , , , , Venting in preparation for Ta#38
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Thursday, May 31, 2012, 14:46: Switching off turbos
Thursday, May 31, 2012, 15:05: Venting |
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Monday, June 04, 2012, 11:40, Anders Mjos, , , , , , , In progress, Empty chamber
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HS water lines blanked.
Monday, June 04, 2012, 11:40: Roughing.
Monday, June 04, 2012, 11:58: Starting turbos.
Monday, June 04, 2012, 12:06 : Turbos at speed. Vacuum 1.5 E-5 |
 Tuesday, June 26, 2012, 16:06, Anders Mjos, , , , , , , Done, Vented
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| Anders Mjos wrote: |
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HS water lines blanked.
Monday, June 04, 2012, 11:40: Roughing.
Monday, June 04, 2012, 11:58: Starting turbos.
Monday, June 04, 2012, 12:06 : Turbos at speed. Vacuum 1.5 E-5
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Tuesday, June 26, 2012, 16:06: Turbos off.
Tuesday, June 26, 2012, 17:20: Vented. |
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Tuesday, June 26, 2012, 18:04, Anders Mjos, FEBIAD anode end cap test, , , , Tube only, 38307-9, In progress, FEBIAD anode end cap test - ready
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Testing FEBIAD anode end cap as per dwg ITD0304 REV C
Target with TUBE ONLY. Do not use target heater.
Tuesday, June 26, 2012, 18:03: Roughing
Tuesday, June 26, 2012, 18:24: Turbos started
Tuesday, June 26, 2012, 18:31 : Turbos at speed. Vacuum at 1.8E-5
Wednesday, June 27, 2012, 08:48: Cooling opened. Vacuum stable at 4.2E-7. Ready for testing.
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Tuesday, June 26, 2012, 18:30, Anders Mjos, , , , , , , Problems/Solutions, Crack in source tray insulator
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A crack in the insulator ITD0054 was observed while mounting the target assembly. See attachment. |
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Friday, June 29, 2012, 13:39, Friedhelm Ames, , , , , , , , start mass scan
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start mass scan to do new mass calibration |
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Friday, June 29, 2012, 15:02, Friedhelm Ames, , , , , , , , mass scan finished
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mass spectrum saved as
plotdump-local-clean.txt_Jun29_12_14-55-43.txt
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Friday, June 29, 2012, 15:03, Friedhelm Ames, , , , , , , , start ramping down heater
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Friday, June 29, 2012, 16:39, Friedhelm Ames, , , , , , , , mass scan finished
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new parameters for mass scan program after fit of mass scan
CONST11 = -4.13
CONST22 = 0.09595 |
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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 |
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Tuesday, July 03, 2012, 19:05, Friedhelm Ames, , , , , , , Problems/Solutions, short in anode
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A short in the anode has developed during the heater ramp up. Increasing the current limit did not cure it. Start heater ramp down to investigate. |
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Wednesday, July 04, 2012, 09:22, Friedhelm Ames, , , , , , , Problems/Solutions, turbo pumps stopped
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turbo pumps stopped to prepare for venting for anode short investigation. |
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Wednesday, July 04, 2012, 13:07, Anders Mjos, , , , , , , Problems/Solutions, water lines purged
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| Friedhelm Ames wrote: |
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turbo pumps stopped to prepare for venting for anode short investigation.
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Wednesday, July 04, 2012, 13:07: Water lines purged |
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Wednesday, July 04, 2012, 15:33, Anders Mjos, , , , , , , Problems/Solutions, short in anode
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| Friedhelm Ames wrote: |
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A short in the anode has developed during the heater ramp up. Increasing the current limit did not cure it. Start heater ramp down to investigate.
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Wednesday, July 04, 2012: short found between anode and target. probably caused by the target tube coming in contact with the anode due to bending of the tube caused by heating and deformation of the grid retaining ring. see attachements |
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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)
Wednesday, July 04, 2012, 15:33: Started roughing.
Wednesday, July 04, 2012, 15:57 : Started turbos
Wednesday, July 04, 2012, 16:03: Turbos at speed. Vacuum at 3E-5 |
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