| ID |
Date |
Author |
Category |
Type |
Module |
Target/Number |
Subject |
|
2088
|
Tuesday, March 17, 2020, 14:59 |
David Wang | ITE | Development | TM4 | P2N | ITE turbopumps are started. |
They work fine. Current draw on all pumps are normal. I asked operator to switch on IG1 , IG1S and PNG4. |
|
2089
|
Wednesday, March 18, 2020, 10:40 |
David Wang | ITE | Development | TM4 | | TM4 P2N target connection checklist. |
TM4 has been connected in ITE. See checklist. |
| Attachment 1: P2N_TM4_connection_checklist.pdf
|
|
|
2093
|
Wednesday, May 20, 2020, 13:19 |
David Wang | ITE | Maintenance | | | Restart of ITE turbo pumps. |
PLC6 drop out in weekend caused the ITH MP1 and MP1s stopped. ITE turbo pumps were running still after that. Without back up pump, TPs started to trip off later . I found TP1,TP3, and TP4 were tripped off this morning. And , The rest pumps ran with high current draw. Jon Aoki restarted back up pumps and ITE turbo pumps. The ITE vacuum system works fine now. |
|
2097
|
Monday, June 01, 2020, 12:46 |
David Wang | ITE | Maintenance | | | ITH:CM6 ,CM6S and ITM:CM3 calibration. |
Edi calibrated ITH:CM6, CM6S and ITM:CM3. By the same time, ITH:MP1 and MP2 lubricate oil level are checked. Everything looks fine. No oil leak on both pumps. |
|
2100
|
Thursday, June 11, 2020, 11:49 |
David Wang | ITE | Maintenance | | | ITW and ITE thermocouple status. |
ITW - 2A2
o 2A2DSP-TC3 - not connected in El room
o 2A2COL-TC2 - does not work inside module
o 2A2COL-TC3 - does not work inside module
· ITE - 2A3
o 2A3COL-TC3 - works, but plug needs repair in ITE pit
Anders and I checked ITW and ITE thermocouple status. See result above. Frank and I will fix the 2A3COL-TC3 loose cable to plug issue.
|
|
2107
|
Thursday, June 18, 2020, 13:25 |
David Wang | ITE | Standard Operation | TM4 | P2N test. | Disconnect TM4 in ITE. |
TM4 has been disconnected in ITE. Vacuum pumps and gauge are not disconnected yet. |
|
2108
|
Friday, June 19, 2020, 11:21 |
David Wang | ITE | Repair | TM4 | P2N test. | ITE TP3 is replaced. |
ITE TP3 is replaced. ITE is under vacuum again. All turbo pumps are started successfully. Current draw on pumps are normal so far. |
|
2113
|
Monday, June 29, 2020, 10:09 |
David Wang | ITE | Standard Operation | TM4 | P2N test. | ITE turbo pumps are stopped |
ITE venting is in processing. |
|
2119
|
Friday, July 03, 2020, 14:08 |
Travis Cave | ITE | Standard Operation | TM4 | UC#30 | Module move |
TM#4 with UC#30 has been moved from the south hot cell to the east target station. |
|
2120
|
Monday, July 06, 2020, 07:54 |
David Wang | ITE | Standard Operation | TM4 | UCx 30 | TM4 has been connected in ITE connection |
TM4 has been connected in ITE. Vacuum pumping down is good so far. |
| Attachment 1: Tm4_UCx_30_connection_checklist.pdf
|
|
|
2123
|
Tuesday, July 07, 2020, 17:43 |
Carla Babcock | ITE | Development | TM4 | | RF tests on new IG-LIS wiring |
Tested RF from RF driver into new IGLIS wires at ITE. Used 5V, 1MHz (2MHz setting because of internal halving issue).
As expected there was a very slight mismatch visible (original cable ~ 68 Ohms, new cable ~ 53 Ohms).
The matching resistor will be changed and it will be retested. |
|
2149
|
Tuesday, September 29, 2020, 12:12 |
David Wang | ITE | Repair | TM4 | | TM4 steerers staus after" left " grounding issue, and first stage investigation |
Left (short) is switched with bottom. So on module:
"Left" is bottom in module actually
"Bottom and Right" is Left and right in module actually.
For the connection in ITE:
Left cable is connected to "left" ( bottom in module actually)
Top cable is connected to " Bottom and Right"( left and right in module actually)
Bottom and Right cable is connected to "Top" which is top in module.
Frank and I removed the panel, disconnected the "Left"cable inside panel, and checked cable to ground resistance. "Left "is dead short to ground on ohmmeter check still. So the short could be on cable or inside source tray. Further investigation is planned to confirm the short location. |
|
2150
|
Tuesday, September 29, 2020, 12:29 |
Travis Cave | ITE | Standard Operation | TM4 | UC#31 | Module move |
Module move of TM#4 with UC#31 was finished to today at around 10:30AM. |
|
2153
|
Tuesday, October 13, 2020, 10:16 |
Travis Cave | ITE | Repair | TM4 | UC#31 | Module move |
TM#4 is now in the south hot cell from the east target station. |
|
2154
|
Thursday, October 15, 2020, 12:48 |
Travis Cave | ITE | Standard Operation | TM4 | UC#31 | Module move |
TM#4 is now back in the east target station. |
|
2162
|
Thursday, November 05, 2020, 10:48 |
Travis Cave | ITE | Standard Operation | TM4 | Ta#61 | Module move |
TM#4 with Ta#61 has been moved from the south hot cell to the east target station. |
|
2176
|
Wednesday, January 06, 2021, 10:39 |
David Wang | ITE | Standard Operation | TM4 | | ITE and TM4 annual leak check. |
Frank and I finished ITE and TM4 primary and secondary vacuum vessel leak check. ＬＤ ｂｅａｓｅ ｌｅａｋ ｒａｔｅ ０.０ｘ－９ａｔｍ．ｃｃ／ｓｅｃ． Ｎｏ ｌｅａｋ ｈａｓ ｂｅｅｎ ｆｏｕｎｄ．Ａｌｓｏ， Ａｌｌ ＴＭ４ ｗａｔｅｒ ｌｉｎｅｓ ｈａｖｅ ｂｅｅｎ ｐｒｅｓｓｕｒｉｚｅｄ ｗｉｔｈ ７０ｐｓｉ ｈｅｌｉｕｍ ｆｒｏ ３ ｍｉｎｕｔｅｓ ｏｎ ｅａｃｈ ｃｉｒｃｕｉｔ． Ａｌｌ ｗａｔｅｒ ｌｉｎｅｓ ｉｎ ＴＭ４ ａｒｅ ｇｏｏｄ． Ｎｏ ｒｅｓｏｐｎｅ ｏｎ ＬＤ ｄｕｒｉｎｇ ｔｅｓｔ． |
|
2180
|
Friday, January 22, 2021, 12:34 |
David Wang | ITE | Standard Operation | | | ITE HV test. |
ITE annual HV test is done. No module in station. The bias power supply has been ramped up to 49KV on control page. We still have voltage limit issue on this PS at 48KV so it only can go to 47.7 KV on PS panel. No major spark during test.. The test result is same as last year test which was did in March 2020. |
|
2187
|
Friday, February 12, 2021, 07:07 |
David Wang | ITE | Maintenance | | | ITW and ITE clean up. |
Vacuum cleaned ITW and ITE station. |
|
2189
|
Thursday, February 18, 2021, 12:33 |
David Wang | ITE | Repair | | | ITE:TP1S |
ITE TP1S new pump is installed today. Reset pump life time on controller to 0 hr. |