ID |
Date |
Author |
Category |
Type |
Module |
Target/Number |
Subject |
1592
|
Wednesday, August 02, 2017, 15:41 |
Keith C Ng | Assembly/Bench Test | Development | | | spare source tray build |
After re zeroing alignment telescope to master jig and adjusted parts into place:
Orientation: X = Left -, Right+; Y = Up +, Down -
Front wire target
X = 0.000, Y = 0.000
Rear wire target
X = 0.000, Y = +.008" (high)
All fasteners torqued to specification, steerer housing and assembly not installed yet. Weight of steerer assembly might cause rear to sag into place. Otherwise may attempt to split difference between the front and rear elements (alignment is on an angle in the horizontal vertical plane.) |
Attachment 1: 20170802_sourcetray_RHB_8264.JPG
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Attachment 2: 20170802_sourcetray_RHB_8266.JPG
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1594
|
Thursday, August 03, 2017, 17:08 |
Anders Mjos | Conditioning Station | Repair | TM2 | | Power bump |
Thursday, August 03, 2017, 17:08: Restarting vacuum and water system |
1596
|
Wednesday, August 09, 2017, 16:39 |
Isaac Earle | North Hot-Cell | Development | | | NHC drain line into sump identified |
The NHC drain line was tested by pouring approximately 10 gallons of water through the drain grate at the base of the NHC partition wall. Water was seen a few minutes later pouring into the sump labeled "ACTIVE SUMP" from the light coloured pipe on the west side of the inside of the sump. Rob Walker had previously said that the hot cells drain into the sump next to this one which is labeled "SANITARY SUMP", which appears to be incorrect. |
1599
|
Tuesday, August 15, 2017, 12:10 |
Isaac Earle | North Hot-Cell | Development | | | ISAC Active Sump low water level measured |
The ISAC active sump in the Active Service Room (#002 on B2 level) was pumped out yesterday using the standard procedure (Section 5.5.2 of the ISAC Operators' Manual, V1.0). The procedure makes use of the auto stop feature of the pump-out system which stops when a low level float switch is triggered. The water level was measured after pumping stopped, and was found to be approximately 21" above the base of the sump. A new section of pipe will be added to the 4" drain line in the sump to move the drain opening below the low level water line so that air in the sump is not pulled into the drain network (which could end up in the NHC or TCS space). |
1600
|
Thursday, August 17, 2017, 14:38 |
Isaac Earle | North Hot-Cell | Development | | | 4/6 NHC roof blocks installed |
Roof blocks IRH1641, IRH1642, IRH1643, and IRH1644 have been fully assembled, labeled, and installed as per drawing IRH1652. Fabrication of TCS shield block (IRH1646) and NHC module port block (IRH1645) is still in progress.
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Attachment 1: IMG_0381.jpg
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1601
|
Friday, August 25, 2017, 16:33 |
Anders Mjos | Conditioning Station | Repair | | | Testing HV after cooling line repair |
The BIAS voltage was brought up to 70 kV today and held there for 1h. No sparking observed. |
Attachment 1: 2017-08-25_HV_Water_Line_Test.xlsx
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1606
|
Tuesday, August 29, 2017, 08:59 |
David Wang | Conditioning Station | Standard Operation | TM4 | | TM4 HS line leak checks |
TM4 HS line leak checks are done, at SHC and TCS. SHC: Helium spray. TCS: Helium pressurize 70psi. LD base LR 0.0 X E-9 atm.cc/sec. No leak has been found on both leak checks. |
1607
|
Tuesday, August 29, 2017, 09:01 |
David Wang | Conditioning Station | Standard Operation | TM4 | | TM4 has been connnected at TCS. |
TM4 has been connected at TCS. TCS water system has been started for TM4. TM4 and TCS vacuum pumping down is good so far. |
1609
|
Tuesday, September 05, 2017, 06:33 |
David Wang | Conditioning Station | Standard Operation | TM4 | | Turned off TCS water system and vacuum system. |
Argon vent and disconnect TM4 at TCS. |
1612
|
Friday, September 08, 2017, 14:08 |
David Wang | Conditioning Station | Repair | TM3 | | TCS and TM3 |
TM3 is located at TCS and it is pumping down now. TCS water system has been started. All TCS water lines for TM3 module internal cooling are bypassed and looped at TCS top ground plate. Water only supply to TCS high current conductors. |
1613
|
Wednesday, September 13, 2017, 10:05 |
David Wang | Conditioning Station | Repair | TM3 | | Switch off TCS water system and vacuums |
Preparing vent the TCS/TM3. We will remove TM3 service tray cover plate after venting. |
1614
|
Wednesday, September 13, 2017, 16:05 |
David Wang | Conditioning Station | Repair | TM3 | | remove Tm3 service tray cover plate |
TM3 service tray cover plate has been removed. It is bagged and placed to TH b2 level south wall beside the silo. |
1615
|
Wednesday, September 13, 2017, 16:13 |
David Wang | Conditioning Station | Repair | TM3 | | TCS turbo pumps are started. |
TCS and TM3 all vacuum pumps are started. Everything is fine. |
1617
|
Tuesday, September 19, 2017, 10:40 |
chad fisher | South Hot-Cell | Maintenance | | | South East Manipulator Maintenence |
Entered hot cell to preform replacement of slave tong cable. Existing cable shows no signs of wear so it has been re-installed. A spare tong cable has been loaded into a spare tong while in the hot cell in preparation for next time this cable needs to be replaced. |
1619
|
Wednesday, September 20, 2017, 13:38 |
chad fisher | South Hot-Cell | Repair | TM2 | | TM2 Insulator replacement |
Broken insulators ITD0053 and ITD0054 have been uninstalled from TM2. |
Attachment 1: 20170920_132813.jpg
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Attachment 2: 20170920_132820.jpg
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Attachment 3: 20170920_133244.jpg
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1621
|
Thursday, September 21, 2017, 12:07 |
chad fisher | South Hot-Cell | Repair | TM2 | | Insulator Replacement |
Insulators ITD0053 and 54 have been replaced. All fasteners torqued to 56 in lbs.
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1622
|
Thursday, September 21, 2017, 16:26 |
Anders Mjos | South Hot-Cell | Standard Operation | TM2 | | Inspection of Source Tray |
Chad and Anders inspected the Source Tray today using the camera in the hot cell. A dark spot was observed on one of the four insulators separating the Extraction Electrode from the Ground Electrode. This could potentially influence the high leakage current. Some discolored areas were also observed in the Service Tray, but these was present when the module was built. See attachment for details. |
Attachment 1: TM2_Source_Tray_EE_Insulator.pdf
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1624
|
Friday, September 22, 2017, 12:13 |
David Wang | South Hot-Cell | Maintenance | TM2 | | TM2 service cap inside inspection. |
Two side panels on TM2 service cap were removed for TM2 service cap inside inspection. A piece of cable tie was found inside cap closing to service tray entrance area. All blue nylon insulators are inspected. They look good. The broken cable tie is moved out of service cap.
Panels are installed back after the inspection.
See attachments |
Attachment 1: TM2_serica_cap_inspection_002.JPG
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Attachment 2: TM2_serica_cap_inspection_003.JPG
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Attachment 3: TM2_serica_cap_inspection_004.JPG
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Attachment 4: TM2_serica_cap_inspection_005.JPG
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Attachment 5: TM2_serica_cap_inspection_008.JPG
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1625
|
Friday, September 22, 2017, 14:15 |
chad fisher | South Hot-Cell | Repair | TM2 | | TM2 containment box off |
TM2 containment box has been removed. Found a piece of capton tape or tubing under table (see picture). |
Attachment 1: 20170922_140546.jpg
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Attachment 2: 20170922_140927.jpg
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1629
|
Thursday, September 28, 2017, 10:50 |
David Wang | Conditioning Station | Standard Operation | TM2 | | Helium pressure test on TM2 window and HS water lines at TCS. |
I did helium pressure test on TM2 containment box window and HS line at TCS. @ 70psi helium for 3 minutes, HS:2.2XE-7 atm.cc/sec., Window:1.2XE-7 atm.cc/sec. There is no change on HS. But LR on window is bigger than before that was in E -9atm.cc/sec range. |