 Monday, June 10, 2019, 14:34, Aaron Schmidt, , , , , , , Done, Removed TM4 Source Tray
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| Monday, June 10, 2019, 09:30: TM4 Source Tray removed - To HC area. |
Monday, June 10, 2019, 14:35, Aaron Schmidt, , , , , , , Done, Optics Tray / EZL inspection. 
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Monday, June 10, 2019, 13:00: Optics Tray removed.
Megger'd @ 1000V on EZL and Collimator. Passed. Open it.
Monday, June 10, 2019, 14:34: 3 cracked insulators found. 1 quite broken on the threads (see attached pictures). Replaced insulators & re-assembled |
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Thursday, June 13, 2019, 14:05, Aaron Schmidt, , , , , , , Done, Spare TGHT PS installed.
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Thursday, June 13, 2019, 14:04: Spare TGHT PS installed / tested. The old one is to be sent out for repair.
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Wednesday, June 19, 2019, 17:25, Fernando Maldonado, , , , , , , Done, Thermocouple connection
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Wednesday, June 19, 2019, 17:13 Ferran and Fernando tested the 9-pin connector to have a reading on a thermocouple following the connections used
by Aurelia (see elog 721).
Wednesday, June 19, 2019, 17:24: Test succesful! |
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Friday, June 21, 2019, 15:12, Aaron Schmidt, P2N - 1, , , , , , , P2N - 1 - 2019
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Friday, June 21, 2019, 14:48: Roughing.
Friday, June 21, 2019, 15:18: Turbo pumps on.
Friday, June 21, 2019, 15:31: IG1 on. |
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Saturday, June 22, 2019, 17:05, Luca Egoriti, p2n, , , , , , Done, Test stand installation
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I opened the test stand because I forgot to install tantalum heat shields around the target. Everything was reinstalled as before (with heat shields).
I could turn on the TSGTP1B but TSGTP1A does not turn on for some reason. I tried multiple times opening/closing its valve (BV1A) but the pump never starts.
Will keep pumping over the weekend with TP1B only. |
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Monday, June 24, 2019, 15:41, Fernando Maldonado, , , , , , , Problems/Solutions, TMS:Q3 polarity
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Monday, June 24, 2019, 15:25: Current quadrupole polarities:
Top/Bottom
North/South
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Tuesday, June 25, 2019, 17:19, Fernando Maldonado, , , , , , , Problems/Solutions, Burnt cables on top of the test stand
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Tuesday, June 25, 2019, 16:15: While inspecting the 9-pin connection with Ferran, it was noticed how two braided cables were burnt out pretty bad to
the point they were separated in half (see attached pictures). Additionally the plastic insulator for the anode wire was melted.
Tuesday, June 25, 2019, 16:30: Braided cables need to be changed and anode wire redone. |
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Wednesday, June 26, 2019, 14:41, Carla Babcock, none, , , , , , Problems/Solutions, Issues with test stand wiring in service cap area
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The wiring on the top of the test stand was burned, see entry 737.
Probable cause of this is as follows:
Coil lines are connected by a wire to HV common, the 9-pin feedthrough etc to maintain same voltage on all the insulator tops. This is also directly |
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Thursday, June 27, 2019, 09:51, Fernando Maldonado, , , , , , , Problems/Solutions, Melted cables changed
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See elog 737
Fernando |
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Tuesday, July 02, 2019, 18:25, Fernando Maldonado, , , , , , , Done, Blank on FEBIAD gas line installed
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Tuesday, July 02, 2019, 18:24: A blind is installed on the FEBIAD gas line (see attached picture) to rule out the possibility
of gases entering the TIS. |
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Thursday, July 04, 2019, 15:15, Aaron Schmidt, P2N - 1, , , , , , , P2N - 1 - 2 - 2019
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Screws instead of rivets on target leg. Insulator changed.
Thursday, July 04, 2019, 15:14: Roughing
Thursday, July 04, 2019, 16:00: Turbos on. |
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Thursday, July 04, 2019, 15:16, Aaron Schmidt, , , , , , , Problems/Solutions, TBHT insulator changed
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Thursday, July 04, 2019, 15:00: TBHT insulator was swapped out on the source tray side.
The old one is very chipped. |
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Monday, July 08, 2019, 09:20, Luca Egoriti, p2n1, , ITE, , , , In progress, p2n heating test
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(see entry 742)
p2n target heated over the weekend after the connections between the bottom target legs and the copper connector has been modified from rivets |
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Monday, July 15, 2019, 15:59, Fernando Maldonado, P2N, , , , , , Done, Re-wiring on service cap.
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Monday, July 15, 2019, 15:54 : TBHT high current cables moved to Coil feedthroughs.
Coil high current cables moved to TBHT feedthroughs.
Resistor across Coil feedthroughs E and F are now moved between TBHT feedthroughs A and B. |
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Tuesday, July 16, 2019, 10:28, Fernando Maldonado, P2N, , , , , , , P2N 1200 A test
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Tuesday, July 16, 2019, 10:27: The idea of this run is to have the full 600 A from TGHT and the full 600 A from TBHT.
This will done based on the rewiring done previously (see entry 745)
Tuesday, July 16, 2019, 12:16: Jumper cable F-H burning while target was at 600 A total. Ramp up aborted and auto-cooling started to remove the |
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Friday, July 19, 2019, 13:48, Fernando Maldonado, , , , , , , Problems/Solutions, RMP0A and FC6 gains signal redirection to another channel
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After submitting a fault report (FR - ISAC Fault 12461) a Work Permit was issued (WP - C2019-07-19-1),
Controls tunnel the faulty signal to another ADC by removing signal no longer used at the Test Stand.
Test successful with a constant current power supply in the range 1 nA-40 nA. |
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Tuesday, July 30, 2019, 12:19, Luca Egoriti, P2N - 1, HP-FEBIAD, ITE, TM2, , , Problems/Solutions, p2n heating test - target inspection
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The p2n target was taken out of the test stand for inspection. Comments and measurements on the container below:
- Initially, continuity measurements were mode between the target and heat shield (HS) while they were still in the test stand, and looks like
they were shorted. However, after removing the HS from the test stand, no short was seen, not even after moving the target legs. Instead, we confirmed |
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Friday, August 02, 2019, 13:16, Aaron Schmidt, P2N - 1, , , , , , In progress, p2n heating test 4
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Friday, August 02, 2019: p2n target installed in the test stand, the ion source was fully removed to avoid any risk of shorting. The Central ion source
current lead is attached to the target body so it was left there and attached to its electrodes.
Friday, August 02, 2019, 13:15: Roughing. |
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Wednesday, August 07, 2019, 08:18, Luca Egoriti, P2N - 1, , ITE, TM2, , , Problems/Solutions, p2n heating test 4
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Tuesday, August 06, 2019, 16:00
Start ramp up to 300+300 = 600 A
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