 Monday, April 04, 2022, 20:56, Carla Babcock, , , , , , , , wiring reverted for cathode-bias FEBIAD
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Wiring which was changed to run the mass marker tests has been reverted:
- anode bias cable connected to "B"
- tube negative attached to HV common through "B" to "F" connection
Ready for cathode biased FEBIAD operation. |
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Monday, December 17, 2012, 22:35, Sebastian Raeder, RFQ empty, , , , , , , wire connection for RFQ test
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Overview over the connections of the new 9Pin connector inside the vacuum and in the HV cage
1&2 : RFQ rods in the vacuum, RFQ Driver in HV cage
4: Repeller electrode, grounded in HV cage
5: Exit electrode , grounded in HV cage
6&7: thermocouple at the center block, w/o HV to OMEGA thermocouple display, with HV should be connected to GND with 1k-10kOhm (to allow a shift of the target)
8&9: not connected, grounded in HV cage
View on top of the feedthrough and the connector on the source tray (male connectors)
__________________
\ 1 2 3 4 5 /
\ 6 7 8 9 /
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1to1 connection for pins 1,2,4-9
Pin 3 is NOT CONNECTED
The pin pairs 1&2, 4&5, 6&7, 8&9 each use a line of twisted pairs |
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Thursday, July 05, 2012, 10:59, Friedhelm Ames, , , , , , , Problems/Solutions, water tripping in front of HV power supplies
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Found some water tripping in front of the high voltage power supplies rack from the water lines at the ceiling. Plastic sheets have been put on top of the racks and MCR has been informed. |
 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, March 07, 2012, 09:27, Friedhelm Ames, Nb#6, , , , , , Done, water cooling started
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water cooling line valves opened. No response on vacuum TSG:IG1 3.5e-7 T |
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Wednesday, December 19, 2012, 09:44, Sebastian Raeder, , , , , , , In progress, venting
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venting and inspect the target
Wednesday, December 19, 2012, 09:43: vqacuum at 1.9E-7T, stop turbos |
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Friday, January 20, 2012, 10:37, Friedhelm Ames, , , , , , , , vacuum pumps shut off
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turbo pumps shut off due to work on cooling water system |
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Monday, March 05, 2012, 14:41, Friedhelm Ames, , , , , , , , vacuum and optics switched off
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vacuum and optics at teststand switched off to allow work on the water cooling system. |
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Tuesday, March 06, 2012, 15:51, Friedhelm Ames, , , , , , , , turbopumps in mass separator section started
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Wednesday, April 11, 2012, 09:34, Friedhelm Ames, , , , , , , , turbopumps in mass separator section started
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turbopumps in mass separator section started after power outages |
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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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Tuesday, January 24, 2012, 09:44, Friedhelm Ames, , , , , , , , turbo pumps restarted
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All turbo pumps have been restarted after cooling water is back and running.
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Monday, March 05, 2012, 19:31, Friedhelm Ames, , , , , , , Failed, turbo pumps failed
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Both turbo pumps at the source box cannot be started. A fault report has been issued. |
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Wednesday, September 14, 2011, 15:33, John Wong, Test#1, HP-SIS, ITW, TM1, test, test, In progress, testing elog for test stand
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Wednesday, September 14, 2011, 15:33
blah blah blah... |
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Thursday, July 12, 2012, 15:49, Anders Mjos, , , , , , , , test stand vented for TP1A replacement
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see e-fault 6142 |
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Friday, September 23, 2011, 15:38, Rick Maharaj, , , , , , , , test stand vented
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Test stand vented |
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Tuesday, May 15, 2012, 08:42, Rick Maharaj, , , , , , , , target removed
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Tuesday, May 15, 2012, 09:46, Rick Maharaj, , , , , , , , target reinstalled pumping started
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Tuesday, May 15, 2012, 10:14, Anders Mjos, SiC#27, HP-SIS, ITE, TM4, , , In progress, target ready to be heated and biased
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Tuesday, May 15, 2012, 10:13: Turbo pumps at speed. Vacuum at 1.4E-5.
Tuesday, May 15, 2012, 12:03: Cooling lines opened. Vacuum stable at 1.6E-6
Tuesday, May 15, 2012, 12:17: Target ready to be heated and biased. |
Tuesday, December 18, 2012, 16:00, Sebastian Raeder, RFQ empty, , , , , , Done, target heating 
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Tuesday, December 18, 2012, ~ 13:00 start ramping the TGHT current, vacuum at 1.7E-7T
Tuesday, December 18, 2012, 15:56: @ 250A, target is glowing, center block is cooler (can be inspected with a new hole in the heatshield lid), thermocouple is reading 224C, which is definitely colder than the temp from visual insepection, reading may be corrupted from contact to Heatschield
Tuesday, December 18, 2012, 23:11: target at 600A(593A/7.35V Panel reading), vacuum was up to 1.7E-6T, now 1.34E-6T. temperature reading was 405C which is quite away from glowing. Nevertheless, the center block of the target is visibly colder than the legs, while the center support is still way colder then the block. Thermocouple readback removed from HV cage. since the is a short cut the target (thermocouple?) the RFQ can be biased to 18V for suppression. everything locked up and stat HV test.
Wednesday, December 19, 2012, 00:14: target at 600A(593A/7.35V Panel reading), vacuum at 8.5E-7T, first HV test done, up to 30kV some occasional sparks. RFQ (1MHz , 40Vpp) without bias--> no signal, RFQ -9V biased --> 1.5E-11 on TMS:FC0
Wednesday, December 19, 2012, 01:17 : vacuum at7.7E-7T, start cooling down, was ~ 2.5h at max current. |
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