 Thursday, April 04, 2019, 14:49, Isaac Earle, Safe Module Parking, Development, , , SMP vacuum vessel support roller friction check 
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With the SMP vacuum vessel now installed inside the shield box, a test was performed to measure the torque required to rotate the vessel. At a moment arm distance of 2.0m a force of 89N was required to rotate the vessel (with no module installed) resulting in a torque of 178Nm. Based on this, the coefficient of rolling resistance (CRR) was calculated to be 0.007; This is fairly close to available data for similar applications such as cast iron wheels on steel rail (https://en.wikipedia.org/wiki/Rolling_resistance). The CRR used for design of the SMP drivetrain was 0.054 which was based on empirical data for a similar product. Because this is significantly higher than the friction of the as-built system the drive-train components are stronger than required and should have no problem rotating the vessel when loaded with a module.
Further details and calculations included in the attached PDF. |
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Monday, April 01, 2019, 14:56, Isaac Earle, Safe Module Parking, Development, , , SMP shield box and vacuum vessel installed in final location
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Last week drilling of the additional required holes in the SMP shield box was completed in the Target Hall. This morning the shield box (IRH1675) was moved to its final installation position in the silo area on the B2 level. The vacuum vessel (IRH1806) was then installed inside the shield box. The center of the vacuum vessel is 2-3" north of the south travel limit of the crane. Photos as well as measurements of the final position are attached below.
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Thursday, March 28, 2019, 10:27, David Wang, Conditioning Station, Repair, TM2, dummy febiad test target, TM2 new source tray helium pressure test at TCS.
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Helium pressure test on TM2 all water circuits is done. 70 psi helium , 10 minutes test time. Leak detector :base leak rate 0.0XE-9 atm.cc/sec, base pressure 0.0Xe-4torr. No any response on LD during the test. All TM2 water circuit are leak free. |
 Thursday, March 28, 2019, 12:48, Anders Mjos, Conditioning Station, Repair, TM2, dummy febiad test target, TM2 new source tray helium pressure test at TCS.
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| David Wang wrote: |
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Helium pressure test on TM2 all water circuits is done. 70 psi helium , 10 minutes test time. Leak detector :base leak rate 0.0XE-9 atm.cc/sec, base pressure 0.0Xe-4torr. No any response on LD during the test. All TM2 water circuit are leak free.
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Thursday, March 28, 2019, 12:40: Found valve to expansion tank TCS:TK2 to be closed. Opened valve. This allow air to escape out of the system and the water system is running as expected again
Friday, March 29, 2019, 11:15: Changed EE to conditioning mode
Friday, March 29, 2019, 11:35: BIAS / EZL 20 / 10 kV
Friday, March 29, 2019, 13:47: BIAS / EZL: 25 / 12.5 kV
Friday, March 29, 2019, 16:09: BIAS / EZL: 30 / 15 kV
Friday, March 29, 2019, 17:23: No sparks for >60 min
Friday, March 29, 2019, 17:26: BIAS / EZL off
Monday, April 01, 2019, 08:13: BIAS / EZL: 30 / 15 kV
Monday, April 01, 2019, 08:33 BIAS / EZL: 35 / 17.5 kV
Monday, April 01, 2019, 09:00: Sparking at about 37.5 kV BIAS. Lowered below 20 kV to stop. Now sparking at around 20 kV
Monday, April 01, 2019, 10:00: BIAS/EZL 22 / 20 kV. Occasional sparking on BIAS as voltage is increased.
Monday, April 01, 2019, 10:05: Change of strategy. Will heat target to bake out the vacuum before continuing with HV conditioning.
Monday, April 01, 2019, 10:43:
BIAS / EZL / EE: 15 / 7.5 / 1.5 kV
COIL / ANODE: 10 A / 200 V
Ramping TGHT / TBHT at 1 A/min. Good/bad vacuum (IG2): 1E-6 / 2E-6 Torr
Monday, April 01, 2019, 19:16: TGHT / TBHT: 500 / 270 A. Vacuum increasing. IG1/2 1.2E-7 / 1.4E-6 Torr
Monday, April 08, 2019, 09:28: BIAS / EZL: 20 / 10 kV (some periods of multiple sparks)
Monday, April 08, 2019, 10:28: BIAS / EZL: 30 / 15 kV (some periods of multiple sparks)
Monday, April 08, 2019, 11:24: 3 sparks for the last 60 min
Monday, April 08, 2019, 14:43: BIAS / EZ: 40 / 20 kV (after two periods of sparking around 39 kV requiring voltage to be reduced below 30 kV to recover)
Monday, April 08, 2019, 15:57: Two sparks in 70 min
Tuesday, April 09, 2019, 12:40: BIAS / EZL 40 / 20 kV with >90 min without sparking
Tuesday, April 09, 2019, 16:00: BIAS / EZL 48 / 24 kV
Tuesday, April 09, 2019, 16:07: Sparking tripped TPs and IG1S, then power supplies.
Tuesday, April 16, 2019, 16:41: BIAS / EZL 50 / 25 kV for 1 hour without sparking.
Wednesday, April 17, 2019, 15:23 : Continued without problems to 50 kV earlier, but sparks tripped off vacuum just above 50kV. Continue later. |
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Tuesday, March 26, 2019, 11:17, Travis Cave, South Hot-Cell, Standard Operation, TM2, no target, Electrical Checks of TM#2 during the source tray change.
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The four electrical check done on TM#2 during the source tray change. |
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Tuesday, March 26, 2019, 11:10, Travis Cave, Conditioning Station, Standard Operation, TM2, Dummy Target, Electrical Check
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Electrical Check of TM#2 with the dummy target attached. |
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Tuesday, March 26, 2019, 09:32, Travis Cave, Conditioning Station, Standard Operation, TM2, Dummy Target, Module move
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TM#2 with a new source tray and the dummy target has been moved from the south hot cell to the conditioning station. |
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Monday, March 25, 2019, 10:11, Aaron Schmidt, South Hot-Cell, Repair, TM2, , LP-FEBIAD Test Target (empty)
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Link to previous target information: https://elog.triumf.ca/TIS/RH-ISAC/1039
Monday, March 25, 2019, 10:00: Target electrical checks (See Attachment 1)
Tested for TM2 |
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Thursday, March 21, 2019, 09:56, chad fisher, South Hot-Cell, Repair, TM2, , Tray insertion
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This morning new water block fasteners and gas line capture nut fasteners were inserted into the hot cell. Window waterline blank off was removed from TM2, surfaces inspected and given a polish with Veltex (30 seconds, 70 psi) as there was a small bit of c seal residue. Transfer try with new source tray has been latched to the module. |
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Wednesday, March 20, 2019, 11:19, Travis Cave, South Hot-Cell, Standard Operation, TM2, no target, Module move
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TM#2 has been moved from the conditioning station to the south hot cell. |
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Monday, March 18, 2019, 07:25, David Wang, Conditioning Station, Maintenance, TM3, , TCS vacuum pumps have been stopped.
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The TCS will be vented soon for TM2 move. |
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Monday, March 18, 2019, 07:23, David Wang, Conditioning Station, Repair, TM2, , TM2 window line helium test
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New seals with a blank off cap are installed on TM2 window line water block. The seals are checked at TCS with 70 psi helium for 5 minutes with LD at 0.0xE-9atm/cc.sec. No response on LD during test. Seals are good. |
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Friday, March 15, 2019, 08:51, Travis Cave, Conditioning Station, Standard Operation, TM2, no target, Module move
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TM#2 has been moved from the south hot cell to the conditioning station. |
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Thursday, March 14, 2019, 10:25, chad fisher, South Hot-Cell, Repair, TM2, , Water Block Polishing status
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Phase 2 (intermediate) and Phase 3 (Final) polishing is complete on all water blocks on TM2 (minus ground electrode circuit which has only had a cursory cleaning). Phase 2 with 2000 grit wet sand paper and isopropynol for 1 minute with tool at 75 psi, Phase 3 with Veltex polishing cloth for 1 minute with tool at 75 psi. |
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Tuesday, March 12, 2019, 09:13, chad fisher, South Hot-Cell, Repair, TM2, , Water Block Polishing status
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Stage 1 polish has been achieved on all single seal water blocks using the single pad tool run at 75 psi, 2 3 minute cycles per block using red scotch brite. |
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Monday, March 11, 2019, 14:34, chad fisher, South Hot-Cell, Repair, TM2, , Water Block Polishing status
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Stage 1 polishing (water scale and at least 99% of visual indium removed) has been achieved on all 2 seal water blocks that will be used (Ground electrode has not been polished). Process required 3-4 3minute cycles of the tool using scotch brite pads with the tool running at approximately 75 psi. |
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Friday, March 08, 2019, 14:10, chad fisher, South Hot-Cell, Repair, TM2, , Water block polishing
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After trials with 2000 grid wet paper I have moved up to "red" scotch brite. This seems to have worked the best so far although it took two minutes to remove the ring that the other materials could not remove (see picture).
I have moved to next circuit. Currently at 3 minutes and 30 seconds with scotch brite but significant ring remains. |
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Thursday, March 07, 2019, 13:59, chad fisher, South Hot-Cell, Repair, TM2, , Polishing
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Polishing of the water block sealing surfaces has commenced. First attempt was on block B with low nap brown polishing pad (the least aggressive pad prepared) and isopropyl for 30 seconds. This cleaned a little but did not remove the "ring" which I believe is water scale. I will step up to 2000 grit wet sand paper and iso next. |
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Thursday, March 07, 2019, 12:20, chad fisher, South Hot-Cell, Repair, TM2, , Pre-polishing pictures
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Pictures of the water blocks before polishing can be found on docushare, collection 24400 |
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Thursday, March 07, 2019, 12:02, chad fisher, South Hot-Cell, Repair, TM2, , Box Off water block jig on
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The containment box has been removed from TM2 and the water block jig installed in preparation for water block polishing. |
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Thursday, March 07, 2019, 09:12, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 move from TCS to SHC.
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TM2 has been moved from TCS to SHC. The move is smooth. |
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