Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  RH-ISAC, Page 110 of 138  Not logged in ELOG logo
New entries since:Wed Dec 31 16:00:00 1969
Entry  Wednesday, August 02, 2017, 15:41, Keith C Ng, Assembly/Bench Test, Development, , , spare source tray build 20170802_sourcetray_RHB_8264.JPG20170802_sourcetray_RHB_8266.JPG

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.)

Entry  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

Entry  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.

Entry  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).

Entry  Thursday, August 17, 2017, 14:38, Isaac Earle, North Hot-Cell, Development, , , 4/6 NHC roof blocks installed 7x

 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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Entry  Friday, August 25, 2017, 16:33, Anders Mjos, Conditioning Station, Repair, , , Testing HV after cooling line repair 2017-08-25_HV_Water_Line_Test.xlsx

 The BIAS voltage was brought up to 70 kV today and held there for 1h. No sparking observed.

Entry  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. 

Entry  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.

Entry  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.

Entry  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.

Entry  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.

Entry  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.

Entry  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.

Entry  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.

Entry  Wednesday, September 20, 2017, 13:38, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Insulator replacement 20170920_132813.jpg20170920_132820.jpg20170920_133244.jpg

Broken insulators ITD0053 and ITD0054 have been uninstalled from TM2.

Entry  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.

 

Entry  Thursday, September 21, 2017, 16:26, Anders Mjos, South Hot-Cell, Standard Operation, TM2, , Inspection of Source Tray TM2_Source_Tray_EE_Insulator.pdf

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.

Entry  Friday, September 22, 2017, 12:13, David Wang, South Hot-Cell, Maintenance, TM2, , TM2 service cap inside inspection. TM2_serica_cap_inspection_002.JPGTM2_serica_cap_inspection_003.JPGTM2_serica_cap_inspection_004.JPGTM2_serica_cap_inspection_005.JPGTM2_serica_cap_inspection_008.JPG

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

Entry  Friday, September 22, 2017, 14:15, chad fisher, South Hot-Cell, Repair, TM2, , TM2 containment box off 20170922_140546.jpg20170922_140927.jpg

TM2 containment box has been removed. Found a piece of capton tape or tubing under table (see picture).

Entry  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.  

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