Argon venting is done.

All water circuits are by passed on the top of TM3. Water pumps and vacuum turbo- pumps are started. Everything is ready for TM3 camera sparking check.

David Wang wrote:

All water circuits are by passed on the top of TM3. Water pumps and vacuum turbo- pumps are started. Everything is ready for TM3 camera sparking check.

 Wednesday November 30st: <br>

- 3 cameras (1 UV and 2 regular cameras)  were installed in the Service cap and the module was pumped down.  1 UV and 1 regular were placed on the East side of the module, aiming to water lines entering the Service Tray; 1 regular camera was placed on the South side of the module, aiming at the bottom of the blue insulators.

- started pumping down. <br>

Thursday, December 1st: <br>

- 1st HV test done. TM3 started sparking above 20kV. The cameras responses were consistent with the sparks. However, the screens were flickering and it was not clear if the responses were due to electromagnetic interferences; or due to cameras' gain change caused by high intensity light due to sparking.<br>

- added helium using the regulating valve. same results were found; <br>

Friday, December 2nd: <br>

- vented the module. <br>

- shielded the cameras' cables with aluminum tape. <br>

- removed 2 blue insulator (EE and HS) and shortened them by 1". They were found too long: HS blue insulator touching the horizontal HV water line; and the EE blue insulator at 2-3mm far from the HV water line; re-installed both shortened blue insulators.<br>

- changes the location of the cameras: 1 regular camera taped to the UV camera were placed South, aiming at the bottom of the blue insulators; 1 regular camera was kept on the East side of the module, also aiming at the bottom of the blue insulators. <br>

- started pumping down. <br>

Saturday, December 3rd: <br>

- 2nd HV test was done, with cameras' installed as mentioned above. results were consistent with the first test results. <br>

- added helium. results were the same. <br>

- vented and changed the location of the cameras: 1 regular camera taped to the UV camera were placed at the top of the Service Tray (South-West corner) aiming down the Service Tray; 1 regular camera was kept (its setup was not touched at all) on the East side of the module, aiming at the bottom of the blue insulators. <br>

- attempted to pump down, but the module was leaking. reopened the flanges, cleaned them, attempted again to pump down, but it showed a bigger leak. <br>

Sunday, December 4th: <br>

- the third attempt to pump down was successful (without reopening the module!). <br>

Monday, December 5th: <br>

- did the 3rd HV test with the cameras installed as described on December 3rd. same results as before were seen. <br>

- again helium was added and same results were noticed. <br>

- stopped pumps and prepared for venting to relocate the cameras lower in the Service Tray.

Aurelia Laxdal wrote:

David Wang wrote: All water circuits are by passed on the top of TM3. Water pumps and vacuum turbo- pumps are started. Everything is ready for TM3 camera sparking check.  Wednesday November 30st: <br> - 3 cameras (1 UV and 2 regular cameras)  were installed in the Service cap and the module was pumped down.  1 UV and 1 regular were placed on the East side of the module, aiming to water lines entering the Service Tray; 1 regular camera was placed on the South side of the module, aiming at the bottom of the blue insulators. - started pumping down. <br> Thursday, December 1st: <br> - 1st HV test done. TM3 started sparking above 20kV. The cameras responses were consistent with the sparks. However, the screens were flickering and it was not clear if the responses were due to electromagnetic interferences; or due to cameras' gain change caused by high intensity light due to sparking.<br> - added helium using the regulating valve. same results were found; <br> Friday, December 2nd: <br> - vented the module. <br> - shielded the cameras' cables with aluminum tape. <br> - removed 2 blue insulator (EE and HS) and shortened them by 1". They were found too long: HS blue insulator touching the horizontal HV water line; and the EE blue insulator at 2-3mm far from the HV water line; re-installed both shortened blue insulators.<br> - changes the location of the cameras: 1 regular camera taped to the UV camera were placed South, aiming at the bottom of the blue insulators; 1 regular camera was kept on the East side of the module, also aiming at the bottom of the blue insulators. <br> - started pumping down. <br> Saturday, December 3rd: <br> - 2nd HV test was done, with cameras' installed as mentioned above. results were consistent with the first test results. <br> - added helium. results were the same. <br> - vented and changed the location of the cameras: 1 regular camera taped to the UV camera were placed at the top of the Service Tray (South-West corner) aiming down the Service Tray; 1 regular camera was kept (its setup was not touched at all) on the East side of the module, aiming at the bottom of the blue insulators. <br> - attempted to pump down, but the module was leaking. reopened the flanges, cleaned them, attempted again to pump down, but it showed a bigger leak. <br> Sunday, December 4th: <br> - the third attempt to pump down was successful (without reopening the module!). <br> Monday, December 5th: <br> - did the 3rd HV test with the cameras installed as described on December 3rd. same results as before were seen. <br> - again helium was added and same results were noticed. <br> - stopped pumps and prepared for venting to relocate the cameras lower in the Service Tray.

 Monday, December 5th (Con't): <br>

- vented and changed the location of the cameras;<br>

- the UV camera was placed (tapped on an aluminum spacer and on the grounded water lines) at the middle of the Service Tray (right below the first Mykroy insulator-plate) aiming down the Service Tray (at the second Mykroy insulator-plate and water lines) ; <br>

- 1 regular camera was placed right below the UV camera, also using a spacer (taped with the camera on grounded water lines) and also aiming down the Service Tray (at the second Mykroy insulator-plate and water lines);  The spacer for this camera had 300counts on it after it was removed from TM3, after the test;<br>

- NOTE: when installing the 1st regular camera: dropped a small allen key in the Service Tray. It landed on last insulator with the epoxi and water lines, between the first HV line and the wall of the grounded Service Tray.  This insulator is down below in the Service tray. Used a magnet stick to recuperate the allen key. <br>

- the 2nd regular camera was placed at the top of the Service Tray (tapped on the grounded water lines) looking down at the first Mykroy insulator-plate and water lines. NOTE: this camera had a filter applied to its lens. <br>

- pumped down <br>

Tuesday, December 6th:<br>

- did the 4th HV test with the cameras installed as described on December 5rd Tuesday morning very early . Same results as before were seen, except that the top camera (2nd regular camera) with the filter applied to its lens was flickering less than the other 2 cameras, and for small sparks this camera was not reacting at all. <br>

- vented shortly after the 4th test and relocated the cameras for the 5th HV test (last test); <br>

- placed only 2 regular cameras in the Service Tray;<br>

- 1 regular camera was placed right below the 2nd Mykroy insulator-plate, aiming down the Service Tray at the last insulator with the epoxi and water lines (this insulator is down below in the Service tray); <br>

- the 1st regular camera was placed a level up in the Service Tray, right below the 1st Mykroy insulator-plate, aiming down the Service Tray at the 2nd Mykroy insulator-plate; <br>

- NOTE: no spacers were used<br>

- pumped down and did the 5th HV test with the cameras installed as described above in the evening; <br>

- again same results as before were seen: the camera with the filter applied to its lens was flickering less than the other camera, and for small sparks this camera was not reacting at all. <br>

- NOTE: for this last test heard sparks outside (at atmosphere) when the HV was pushed at 26kV; <br>

Wednesday, December 7th:<br>

- vented and removed the cameras from TM3. No contamination was found on the cameras and wires. <br>

- TM3 was moved to the silo.<br>

TCS TP1S has been started.

2017-01-23 afternoon: Stopped TP1S. We will use TCS to take TM2 tomorrow afternoon.

Updated target hall schedule for 2017 winter shut down. See attachments 1,2

Update schedule after Febiad beam schedule changed to ITE. See attachments 3,4

I did electrical check before and after Fefiad target installation on TM2. The RU (coil) Is till short to 60KV as before. Other result are good. After Febiad target is installed, Tm2 HS line is leak checked. On leak detector, base leak rate pumping down is much slow  than before.  The base pressure still could be pumped down to 0.0XE-4 torr.  After a long time wait, Chad and I leak checked at 2.2XE-8 atm.cc/sec base leak rate. Chad sprayed lots helium around the fittings and target. No any response has been found on LD. At this leak rate, the target and HS line is leak tight.  The Tm2 has been moved to THC so a heium pressure check will be fulfilled on HS line at TCS to confirm this leak check result.  

TM2 HS line is pressurized with 70 psi helium at TCS. LD base leak rate: 0.0 X E-9 atm.cc/sec. Base pressure 0.0XE-4 torr. 5 minutes test time. The leak rate slowly climed to 3.3XE-9 atm.cc/sec and stabled there( 3minutes). base pressure no change. The leak is too small to be concern. We will run this target as this condition.

I connected TCS vacuum system to TM2. The station is under roughing now. All turbo pumps will be started soon.

The move is successful.

Update 2017 winter shut down target hall schedule. See attachments

Target module window  cooling lines at TCS has been modified to use spare 2 channel in TCS: WFB1. The old cooling lines used a spare channel in TCS WFB2(HVC channel) are removed and capped. After change, TCS window cooling lines will be interlocked with heaters. The test run on new lines are good. No leak  on all fittings, and signals on flow and temperature are good.   Control people will be noticed on this change for their following up job.

TCS:TK2 , Water has been refilled to 28.5" level. It was 15.1". Fall protection equipment  are used during the job.

TM#4 has been moved from the SW Silo to the conditioning station.

Yasmine and I did a rust inpsection on TM4 service cap inide surface and shielding plug surface. No rust has been found. Also, all steel bolts on this surface look fine. The inside of silo held this module are rust free as well.  See attachments

TM4 service cap rust are cleaned out at TCS. All top surface of TM4 are wiped and cleaned . The module looks good now. see attachments

 Wednesday, March 29, 2017, 11:37: RGA on

Wednesday, March 29, 2017, 13:51: Water package on

Thursday, March 30, 2017, 08:50: Restarted chiller. OP3 fault on both VFDs.

Thursday, March 30, 2017, 10:18: Roughing

Thursday, March 30, 2017, 16:02: Configured EE to conditioning mode. All power supplies for SIS operation was checked to be working earlier.

Thursday, March 30, 2017, 16:06: BIAS / EL 10 / 5 kV and 0.02 / 0.04 mA

Thursday, March 30, 2017, 16:10: BIAS / EL210 / 10 kV and 0.03 / 0.06 mA

Thursday, March 30, 2017, 16:11: IG1 at 7.8E-7 T, IG2 at 2.3E-6 T

Thursday, March 30, 2017, 16:21: No sparking. Ramping down for the day

Friday, March 31, 2017, 08:32: BIAS / EL 20 / 10 kV and 0.03 / 0.06 mA

Friday, March 31, 2017, 08:32: IG1 at 4.2E-7 T, IG2 at 1.4E-6 T

Friday, March 31, 2017, 08:45: BIAS / EL 25 / 12.5 kV and 0.04 / 0.08 mA. Some minor vacuum responses around 24 kV

Friday, March 31, 2017, 10:03: BIAS current was limiting at 26 kV after EPICS restart. Updated limit

Friday, March 31, 2017, 10:10: BIAS / EL 30 / 15 kV and 0.04 / 0.09 mA. Vacuum and current responses when increasing BIAS.

Friday, March 31, 2017, 10:54: BIAS / EL 35 / 17.5 kV and 0.05 / 0.10 mA.

Friday, March 31, 2017, 11:24: BIAS / EL 40/ 20 kV and 0.05 / 0.11 mA.

Friday, March 31, 2017, 11:43: BIAS / EL 45/ 22.5 kV and 0.06 / 0.13 mA.

 Friday, March 31, 2017, 13:47: No sparks for ~90 min. Ramping down HV

Friday, March 31, 2017, 13:58: Starting auto-ramping heaters to 100 / 100 A at 1 A/min. Good/bad vacuum at 3E-6 and 5E-6 T on IG2. EE to 1500 V

Friday, March 31, 2017, 14:03: BIAS / EL / EE at 30 / 15 / 1.5 kV and 0.04 / 0.09 / 1.5 mA

Saturday, April 01, 2017, 10:58: Continue auto-ramping to 440 A / 200 A.

Saturday, April 01, 2017, 17:17: IG1 / IG2 to 1.7E-6 and 3.6E-6 T at 440 A. Reduced manually to 430 A to limit outgassing.

Saturday, April 01, 2017, 18:03: Discovered TP2 had tripped off. Likely causing "increased outgassing" above.

Saturday, April 01, 2017, 18:12: TP2 back at speed.

Saturday, April 01, 2017, 23:25 : TP2 fault from spark. Restarting. Ramping down heaters.

Sunday, April 02, 2017, 06:45: Found source to be tripped on water flow TGHT at around 1:15 am. Vacuum and water flow otherwise ok. Set source to 0. To be investigated Monday. 

Monday, April 03, 2017, 11:05: The paddle wheel on the TGHT line was not turning this morning. After running water through a bypass an reconnecting to the module, flow was restored, but it appeared to be at a relatively low rate.

Monday, April 03, 2017, 12:00: BIAS / EL / EE at 30 / 15 / 1.5 kV and 0.03 / 0.09 / 1.5 mA

Monday, April 03, 2017, 12:18: Tested TGHT / TBHT to 20 / 10 A.

Monday, April 03, 2017, 12:18: Increased EE to 2 kV and 2.0 mA

A small leak has been found on TM4 Ta(-) which is marked as "B" on terminal blocks. The LD base Leak rate is 1.2XE-8 atm.cc/sec. 70psi helium has been applied to Ta(-) water line for 3minutes. The leak rate went up to 2.5xE-6 atm.cc/sec and stabilized there. Anders found a helium response on RGA helium reading during the same time. This confirms the leak is real. Other lines are leak checked today also. They are good still. All TM4 water lines were leak checked in ITE in 2017 January. They  were all good at 0.0 X E-9 atm.cc/sec. See attachment e-log.

Leak check on TM4 Ta(-) water lines in service cap is done. LD base LR after 50minutes pumping down:0.0xE-9 atm.cc/sec. base pressure: 0.0XE-4 torr. I sprayed lots helium on welding stems on Ta(-) line in service cap including stems in blue nylon insulator and stems to service tray.  no any response has been foun on LD. The Ta(-) line in service cap is leak free.

 Totally panel open and leak check time is about 12minutes. Argon vented TCS before leak check this morning. 

This morning, The helium pressure leak check on TM4 Ta(-) is done after TM4 finished conditioning yesterday.  LD base LR:8.0XE-9 atm.cc/sec, base pressure: 0.0XE-4 torr. Applied 70 psi helium to TM4 TA(-) water line. The LR slowly climbed to 2.2XE-7 atm.cc/sec, and stopped there. Waited for 5 minutes and change at 2.2 X E-7 atm.cc/sec.

 Argon vented TCS and TM4 after pumps are stopped.