 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. |
|
Monday, May 29, 2023, 12:52, Frank Song, ITW, Standard Operation, TM2, TiC#6, Module Connection
|
| TM2 with TiC#6 was connected in ITW (FEBIAD), turbo pumps were started successfully. |
|
Thursday, May 25, 2023, 13:10, David Wang, Conditioning Station, Maintenance, TM2, , TCS MP1 is replaced due to poor performace.
|
TCS MP1 is replaced due to poor performance( system shows unstable and high reading on TCSCG1A and high TP1,TP2 current draw) . The pump is edward 15i
scroll pump. Since vacuum group has no same spare pump, i have to use SMP roughing pump SMP:MP1 which is a same pump to replace it.. After the replacement
,the TCS:CG1A and TP1, TP2 current draw are back to normal. The original TCSMP1 was surveyed. Swipes on intake and exhaust port are 300 counts and 1000counts. |
|
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 |
|
Wednesday, May 24, 2023, 08:34, David Wang, Conditioning Station, Standard Operation, TM2, TiC#6, TM2 HS line helium pressure check and gasline fittins leak check.
|
TM2 HS line helium leak check is done. leak detector base LR 1.8xE-8atm.cc/sec. helium pressure 70 psi. 5 minutes test. no change on LD leak rate.
I spray lots helium to gas line adaptor and fittings. No leak.has been found at this base leak rate level. Since the TCS MP1 has some
issue ,this time the base leak rate on LD only can get to 1.8Xe-8 atm.cc/sec at this moment instead of 0.0xE-9. The low E-8 level is not perfect, |
|
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. |
|
Friday, May 19, 2023, 09:39, Frank Song, South Hot-Cell, Standard Operation, TM2, TiC#6, leak/electrical check
|
| TM2 with TiC#6 was checked on SHC, see pic attached pls. |
|
Friday, May 12, 2023, 09:56, Adam Newsome, Spent Target Vault, Standard Operation, , , Emergency Close Mechanism Test
|
The emergency close mechanism for the Storage Vault door was tested by Travis Cave, Nadia
Jorgenson, Adam Newsome, and Jason Zhang. The door was opened to its fully open limit, then closed with the emergency system.
The test was successful. |
|
Wednesday, May 10, 2023, 08:40, Frank Song, ITE, Standard Operation, TM4, TiC#5, Module Connection
|
| TM4 was connected in ITE. pics attached FYI. |
|
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. |
|
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. |
|
Wednesday, May 03, 2023, 13:22, David Wang, ITE, Standard Operation, , , Argon vented ITE station.
|
| Argon vented ITE station. ITEVV1S and ITGT SV3 were closed after venting. |
|
Wednesday, May 03, 2023, 11:04, Adam Newsome, Crane, Maintenance, , , Pail Handling Tool - Annual Inspection
|
The pail handling tool which is used to move 5 gallon pails around the target hall was inspected by A. Newsome, N. Jorgenson, and E. Lahe. The main tool
as well as spare were checked for the following items. The tools are in good, working condition. It is noted that some fasteners on the hook assembly were
slightly loose, but have been tightened. |
|
Tuesday, May 02, 2023, 17:18, David Wang, ITE, Standard Operation, , , ITE 4 turbopumps are started for preoperation check.
|
ITE TP3,4, 1S,and 4S were started successfully this afternoon. All pump current draws were below 1.5A . IG1S was switched on. I have no local controller
so TP1 and TP2 on TM4 at MSP can not be checked. IG1S was hard to switch on at first. It timed out and showed error 09 code. I removed the
connector back cap, and it could be switched on after. I will look on this issue. |
|
Friday, April 28, 2023, 21:39, David Wang, Conditioning Station, Standard Operation, , , TCS cooling water system was started and tested this Wednesday
|
TCS cooling water system was started and tested this Wednesday. Chiller compressor 2 and 3 was in operation cycle twice without issue. TCS:TK2 was refilled
to 28 inches. Water system works fine. system was switched off after test. |
|
Monday, April 24, 2023, 10:18, David Wang, Cooling, Maintenance, , , HALCW flowmeter transmotters inspetion and calibration.
|
ITW, ITE, ITW +ITE total , and low active cooling water return flow meter transmitters are inspected and calibrated. Result:
ITW , PX-750-06Di , Calibrated to 4-20 mA for 0 to 6" H2O DP, linear. Transmitter works fine.
ITE. PX-750-06Di, calibrated to 4- 20mA for 0 to 6" H2O DP, linear. Transmitter works fine. |
|
Tuesday, April 18, 2023, 07:28, chad fisher, North Hot-Cell, Maintenance, , , NHC entry summary
|
NHC was entered on April 17, 2023 for inspection and maintenance. Summary :
Compressible and non-compressible waste was loaded into a 55 gal drum and removed from the NHC. This same drum will be inserted into the SHC at
a later date to be sorted, compressible waste compressed, and drum filled more. |
|
Friday, April 14, 2023, 10:01, Adam Newsome, Assembly/Bench Test, Repair, , , Assaying Turntable Repair
|
The spent target assaying turntable was repaired. It was tested today with a load exceeding the maximum it would need to handle during rotation (100
kg). It works as expected and is ready for operation. |
|
Tuesday, April 11, 2023, 11:35, chad fisher, North Hot-Cell, Standard Operation, , , NHC fields post sample removal
|
The fields in the NHC after removal of Ferran's graphite sample is 238 uSv/h. This again seems to emanate for the items in the 5 gal pail...the copper
tubing from the beam window or, as I mentioned in my previous elog, the peek samples. I did ask about removing these during the graphite sample removal
but was told they were not "hot". |
|
Monday, April 03, 2023, 07:55, chad fisher, North Hot-Cell, Standard Operation, , , NHC, SHC field check
|
NHC is 1.26 mSv/h inside approximately .5m from table surface, between manipulators
SHC 186 uSv/h inside approximately .5m from table surface and between manipulaotrs |
|