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ID |
Date |
Author |
Category |
Type |
Module |
Target/Number |
Subject |
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2438
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Thursday, May 04, 2023, 07:14 |
David Wang | Safe Module Parking | Standard Operation | TM4 | | SMP vacuum pumpimg down is stopped. |
SMP vacuum pumping down is stopped. SMP and TM4 venting to atmosphere will be started soon. |
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2439
|
Monday, May 08, 2023, 10:59 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | TiC#5 | electrical check/leak check |
TM4 with target TiC#5 installed has been leak checked and electric checked on NHC. |
| Attachment 1: TM4_with_TiC#5_20230508.png
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2440
|
Wednesday, May 10, 2023, 08:40 |
Frank Song | ITE | Standard Operation | TM4 | TiC#5 | Module Connection |
TM4 was connected in ITE. pics attached FYI. |
| Attachment 1: TM4_with_TiC5_connection_in_ITE_20230509.png
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| Attachment 2: TM4_with_TiC5_all_set_in_ITE_20230510_758AM.JPG
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2443
|
Monday, May 22, 2023, 15:06 |
Carla Babcock | ITE | Standard Operation | TM4 | TiC#5 | Module conditioning |
Yesterday and today module conditioning was done on Tm4 in ITE. This is the first ramp up after the shutdown and ITE is planned to run at high voltages for the first weeks. The module is behaving well - went up to 40kV yesterday, stayed there for an hour, and up to 46kV today. Current draw is 113uA at 46kV. No serious sparking.
Tuesday, May 23, 2023, 09:32 : Ramping up again, easy to 45kV. Drawing 132uA at 49kV. Still behaving quite well. |
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2445
|
Wednesday, May 24, 2023, 17:25 |
Carla Babcock | ITE | Repair | TM4 | TiC#5 | Issues with anode short |
When I tried to raise the anode voltage in cathode bias mode on May 23 evening, I found the target or tube shorted to HV common. Investigations in the faraday cage today showed the same. I removed all the new electronics (resistors, gemovs, etc) from the power supply to no effect, so I disconnected the TGHT supply and pushed it away from the busbars. There was still a short. David Frank and I then went down to the pit and disconnected everything to measure the module. The module itself showed no short, and the bus bars in the chase for TGHT showed no short, though the ones for TBHT still showed the short.
David and Frank reconnected the module and I disconnected the TBHT supply in the faraday cage, then I found no shorts to TGHT/TBHT. When I reconnected everything there were still no shorts. There must have been a short in the TBHT line in the faraday cage, and another short in the TGHT line in either the faraday cage or on the module top. Both these shorts got resolved by taking everything apart. Still not sure how it happened.
Next I found I could not raise the anode voltage above 230V, it looked like it was current limiting but since the current limit was high, I figured it had something to do with the new electronics installed. I disconnected them all the in cage and that solved the problem, and then reconnecting the gemovs that go from the PSU terminals to HV common caused the problem again, so I left those disconnected. |
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2448
|
Tuesday, May 30, 2023, 12:23 |
Frank Song | ITE | Standard Operation | TM4 | TiC#5 | gas lines pump out in ITE Faraday Cage |
argon is being supplied at 6 psi to TM4. |
| Attachment 1: Argon_supplied_at_6psi_to_TM4_in_ITE.JPG
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2455
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Tuesday, June 13, 2023, 09:55 |
Frank Song | ITE | Standard Operation | TM4 | TiC#5 | module disconnection |
TM4 with TiC#5 was disconnected in ITE and moved to NHC. |
| Attachment 1: TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf
|
disconnected_in_ITE_20230613-0.png "TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf")
disconnected_in_ITE_20230613-1.png "TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf")
disconnected_in_ITE_20230613-2.png "TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf")
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2456
|
Tuesday, June 13, 2023, 11:45 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | TiC#5 | electrical check |
TM4 with spent target TiC#5 electric check after moving from ITE to NHC. |
| Attachment 1: TM4_with_spent_target_electric_check_right_after_moving_to_NHC.png
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2457
|
Tuesday, June 13, 2023, 11:49 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | SiC#45 | electrical check and leak check |
TM4 with new target SiC#45 installed has been leak checked and electrical checked on top of NHC. |
| Attachment 1: TM4_with_SiC#45_leak&electric_check_on_top_of_NHC.png
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2458
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Wednesday, June 14, 2023, 07:10 |
Frank Song | ITE | Standard Operation | TM4 | SiC#45 | TM4 with SiC#45 connection in ITE |
TM4 with new target SiC#45 was connected in ITE, all TPs are running at their full speed. |
| Attachment 1: TM4_with_SiC#45_connected_in_ITE_20230613.pdf
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2459
|
Wednesday, June 14, 2023, 13:37 |
David Wang | ITE | Standard Operation | TM4 | | ITE water signal interlock check |
ITE water signal interlock check including HS,EE, TA, TU, MSP. Coil1 , C-window ,2a-window, 2A tank, 2A shielding plug , 2A dump, 2A collimator are done. All things work. |
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2464
|
Tuesday, July 18, 2023, 10:08 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | SiC#45 | module disconnection & electrical check right after transferred from ITE to NHC |
TM4 with spent target SiC#45 was disconnected ITE and an electrical check made right after moved on NHC. |
| Attachment 1: TM4_with_SiC45_disconnection_and_e_check.pdf
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2465
|
Wednesday, July 19, 2023, 08:04 |
Frank Song | ITE | Standard Operation | TM4 | UCx#42 | Module Connection |
TM4 with new target UCx#42 was connected in ITE. |
| Attachment 1: TM4_with_UCx42_connection_in_ITE_20230718.pdf
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2466
|
Wednesday, July 19, 2023, 08:09 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | UCx#42 | electrical check |
An electrical check was made after new target installed on TM4. |
| Attachment 1: E__check_after_UCx42_installed_on_TM4.pdf
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2483
|
Tuesday, August 29, 2023, 09:33 |
Frank Song | ITE | Standard Operation | TM4 | UCx#42 | module disconnection |
TM4 with spent target UCx#42 was disconnected in ITE and has been remote moved to NHC this morning. |
| Attachment 1: TM4_with_UCx42_Disconnection_in_ITE_2023-08-29.pdf
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2484
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Tuesday, August 29, 2023, 10:45 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | UCx#42 | electrical check |
TM4 with spent target UCx#42 has been electric checked at NHCpost right after transferred from ITE. |
| Attachment 1: TM4_with_UCx42_electric_check_with_spent_target_at_NHCPost__2023-08-29.pdf
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2485
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Tuesday, August 29, 2023, 14:32 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | Ta#65 | electrical check/leak check |
TM4 with new target Ta#65 has been E/L checked at NHCPost. |
| Attachment 1: TM4_electric_and_leak_check_after_Ta#65_installed_2023-08-29.pdf
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2486
|
Tuesday, August 29, 2023, 14:32 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | Ta#65 | electrical check/leak check |
TM4 with new target Ta#65 has been E/L checked at NHCPost. |
| Attachment 1: TM4_electric_and_leak_check_after_Ta#65_installed_2023-08-29.pdf
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2488
|
Wednesday, September 06, 2023, 08:07 |
Frank Song | ITE | Standard Operation | TM4 | Ta#65 | Module Connection |
TM4 was connected in ITE with new target Ta#65 installed. see attachment in detail. |
| Attachment 1: TM4_with_Ta#65_connection_in_ITE_2023-09-05.pdf
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2498
|
Tuesday, November 07, 2023, 13:42 |
Frank Song | South Hot-Cell | Standard Operation | TM4 | Ta#65 | electrical check with the spent target |
TM4 with spent target Ta#65 was electrical checked right after being moved to SHC. |
| Attachment 1: TM4_with_Spent_Target_Ta#65_electrical_check_on_SHC_2023-11-07.pdf
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