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 111 of 135  Not logged in ELOG logo
Entry  Thursday, October 24, 2013, 11:31, Travis Cave, Spent Target Vault, Standard Operation, , UC#7, Spent target move Vault_Storage_October_24_2013.pdf

UC #7 has been moved from the south hot cell to the spent target vault, it was placed in pail #110 and put in slot 8B of the vault, it was 22.6mSv/hr upon removal from the hot cell. See attached PDF for vault details.

Entry  Wednesday, October 23, 2013, 12:07, Travis Cave, South Hot-Cell, Standard Operation, TM1, no target, module move 

TM#1 with no target has been moved back to the south west silo from the south hot cell.

Entry  Wednesday, October 23, 2013, 09:28, Travis Cave, South Hot-Cell, Standard Operation, TM1, UC#7, module move 

TM#1 with UC #7 has been moved from the south west silo to the south hot cell.

Entry  Tuesday, October 22, 2013, 17:07, Bevan Moss, Conditioning Station, Standard Operation, , , services shut down 

 The turbo pump, roughing pump, have been turned off and the valves for venting opened. The cooling package has also been turned off.

Entry  Tuesday, October 22, 2013, 17:04, Bevan Moss, Conditioning Station, Standard Operation, TM4, , HV testing 22102013_TM4_Coil_removed_EL_testing_(1).txt

 This afternoon TM4 with the coil removed was tested with HV. The EINZEL LENS was first tested independently while the bias canbus was being repaired. The current on the EL looked stable at 25kV for 5 minutes. At 27.5kV the current becomes unstable and occasionally sparks. This voltage was held for 30 minutes but the current did not appear to be becoming more stable. Further extended testing would be required to determine if this can be conditioned out. At this point I would suggest the EL has a HV limit near 25kV.

The BIAS and EL were then brought up to 35kV and 17.5kV respectively. This voltage was held for 35 minutes with the BAIS only sparking twice. The module can most likely hold a higher voltage but for the next 2 runs does not require more than 35kV. Further testing was not completed due to time constraints. It is recommended during the shut down that TM4 is tested to its limits. The data from the testing has been attached.

Entry  Tuesday, October 22, 2013, 16:52, Bevan Moss, Conditioning Station, Repair, , , Canbus base card for BIAS  

 The base card in the canbus BIAS module was determined to be faulty. Dave Morris removed a card VECC to repair the conditioning station. 

Entry  Tuesday, October 22, 2013, 14:23, Anders Mjos, ITE, Standard Operation, TM3, NiO#2, Padlle wheel frequency measurements ITE-TM3-NiO#2-HP-FEBIAD_Water_Flow.pdf

as measured today in the electrical room by David and Anders

Entry  Tuesday, October 22, 2013, 11:18, Travis Cave, ITW, Standard Operation, TM1, UC#7, module move 

TM#1 with UC#7 has been moved from the ITW to the south west silo.

Entry  Monday, October 21, 2013, 12:29, Bevan Moss, Conditioning Station, Repair, TM4, , BIAS Canbus 

 There is something wrong with the BIAS canbus controller. It says that it is not alive and has timed out. I have tried unplugging it and plugging it back in but that has not resolved the problem as it normally does. I have contacted Dave Morris and am waiting to hear from him. I cannot HV test without this controller.

Entry  Monday, October 21, 2013, 10:52, Bevan Moss, Conditioning Station, Standard Operation, TM4, , Cooling On and Electrical Connections Made 

 The electrical connection have been made and cooling package was started at ~10:50am today

Entry  Friday, October 18, 2013, 15:55, Bevan Moss, Conditioning Station, Standard Operation, TM4, , Turbo Pumps are on 

 The Turbo pumps are now running on TCS

Entry  Friday, October 18, 2013, 14:56, Travis Cave, South Hot-Cell, Standard Operation, TM4, no target, Electrical check TM#4_no_target_post_coilelectest.PDF

With the coil line removed an electrical check was done on TM#4 at the South Hot Cell see attached pdf.

Entry  Friday, October 18, 2013, 14:37, Bevan Moss, Conditioning Station, Standard Operation, TM4, , Roughing Started 

 The roughing pump has been started.

Entry  Friday, October 18, 2013, 14:33, Bevan Moss, South Hot-Cell, Standard Operation, TM4, , Module move 

 TM4 without a source tray was moved from the SHC to the TCS.  All went well.

Entry  Friday, October 18, 2013, 13:43, chad fisher, South Hot-Cell, Repair, TM4, , C2 Circuit Removal IMG_1224[1].JPGIMG_1227[1].JPGIMG_1230[1].JPG

The C2 circuit (coil 2) water lines and blocks have been revoed from TM4.

Water block jig could not be used as the window water block connection was nowhere near fitting into the jig (IMG_1224 image below) and therefore caused an interference causing the rest of the blocks to not mate with the jig. A different tool that has never been used was implimented and sucessful (IMG_1227 below).

 Sorry about the picture numbering format...new format will be implimented next time.

Entry  Friday, October 18, 2013, 10:17, Bevan Moss, ITW, Repair, , , Paddle Wheel 

 Yesterday I visually inspected the paddle wheel and noticed that it was spinning freely and constant. As the signal was intermittent replaced the coil at the back of the wheel only. This does not require access to the high active water. With the coil replaced the signal looked strong. I asked operations to keep and eye on it and advise if the problem has been resolved. I also discussed with David this morning and he informed me that this is the same procedure he would have followed.

Entry  Thursday, October 17, 2013, 17:16, Grant Minor, ITE, Repair, , , Pre-Separator-area (ITE Harp 9) Blocks Replaced 8x

The pre-separator-area blocks were replaced today by Bevan and Travis, with Grant present for photos and observation.

Photos are attached of each block replacement.

Some difficulty was encountered in replacing the "Layer #3" blocks (photo 9 attached).  An interference occurred between the outside of the west "Layer #3" block and an aluminum channel directly beside the rubber pad that supports the block.  The block was initially resting on this channel but slipped off, breaking off some concrete at the edge.   See photo 12 attached and notice crumbled concrete inside this channel around the area where the interference occurred. Photo 14 shows the damaged block edge.

It should be noted that when these two blocks are resting flat, there should be a gap between them (i.e. they should NOT be touching as shown in photo 9).

 

Entry  Thursday, October 17, 2013, 10:24, chad fisher, South Hot-Cell, Repair, TM4, , Coil Line Removal TM4_C2_circuit.pdf

The containment box was removed from TM4 earlier this morning in preparation for removal of the C2 circuit water lines, their respective water blocks and conductor block.

Entry  Wednesday, October 16, 2013, 18:53, Grant Minor, ITE, Repair, , , ITE Harp 9 Removed & Blanked-Off - blocks NOT YET replaced 11x

The blocks above the pre-separator section of the ISAC beam lines were removed today in the Target Hall by Bevan Moss and Chad Fisher with Lynne LeMessurier present from RPG.

The two blocks in the layer below the top layer above the pre-separator were damaged on removal (see attached photos).  This was due to an attempt to lift them in the incorrect sequence caused by misinterpretation of the labeling / numbering system drawn on the top of the blocks.  The blocks are labelled for the replacement sequence, but not for the removal sequence.  An attempt was made to lift a block that had an overlap with an adjacent block that was not visible, causing damage to two blocks.  A note was added in black marker to the critical block to indicate that it should be removed last (shown in attached photo).  The block replacement sequence will be photographed and a procedure document will be written by Bevan, with a bound copy of the procedure provided in the Target Hall, in order to prevent such an incident from occurring again.  Broken pieces of the blocks were collected and placed in a 5-gallon pail.

The removal of all of the blocks caused the depression in the target station to fluctuate around the trip point (17 inches of water column), which caused the ventilation alarm to trip on and off constantly.  Operations contacted me to ask if this could be remedied.  Bevan closed the damper to ITW, which brought the depression to a low enough value so that the alarm could be defeated properly.  This was around 2pm.

Preliminary co-ordination of the ITE Harp 9 removal job was discussed by Scott Kellogg and Ron Kuramoto around lunch time.  Keith Ng (RH) and Scott searched for the blank-off that was used during the last Harp 9 repair (removed from B/L in March 2013) but they could not locate it.  I was later able to find the blank-off bagged in a grey rubbermaid bin at the bottom of the stairs in the target storage vault pit (under the SHC / NHC ventilation and filters).  The blank-off was found bagged and tagged as surveyed at 100 counts @ 0.5m on March 27, 2013.  I gathered Scott, Ron Kuramoto, and Danka Krsmanovic to co-ordinate the Harp 9 removal and blank-off installation, starting at around 2:30 pm.

For the Target Hall Harp work, Ron Kuramoto and Scott prepared the required tools and plastic coverings / bags.  I acted as crane operator.  Danka was the surveyor present.  Anders Mjos joined the group for photos and moral support.

Scott disconnected services from the Harp device, and prepared it for lift.  I called operations to confirm that the section of B/L had been vented.  Ron and Scott used the RH tools to disconnect the 2 vacuum flange bullet bolts.  Ron directed the crane with signals and I lowered the chain rigging to the Harp, it was connected and removed from the BL with the main hoist.  (I made the mistake of directing the rigging of the harp to the main 20T hoist, when in fact the 3T Aux hoist should have been used, as the main hoist can't reach to the vacuum / storage pit on the west side of the hall.)

Danka performed several swipes and measurements of the Harp after removal.  Alpha contamination was discovered on the bottom of the Harp flange.

Ron and Scott installed the blank-off flange, then I called operations to indicate that pumping should start.

Ron and Scott retrieved the vacuum test flask jig / support structure from the West storage pit and brought it down to the pre-separator pit.  I lowered the Harp into this flask jig, and Scott used the side-wall location bolts from the top of the harp assembly to fasten the flanges of the Harp and the jig.

I had trouble at first activating the Aux hoist but soon realized that it's necessary to press the Aux pendant "ON" button down for several seconds before the power actually turns on to this hoist.

We then removed the main hoist hook and attached the Aux hoist to the Harp / flask.  The assembly was transported to the West storage pit.

Some of the handrails had to be removed to facilitate initial movements of the Harp assembly.  These handrails should be replaced tomorrow morning.

Scott also submitted a Work Order for a back-up blank-off today, job number 40303.

The pre-separator blocks have NOT been replaced yet, we will do this tomorrow morning.

It was a busy day, thanks to all for their efforts and for staying a bit late to get the blank-off installed.

Best regards,

Grant

Entry  Wednesday, October 16, 2013, 10:12, Travis Cave, South Hot-Cell, Standard Operation, TM4, no target, module move 

TM#4 with no target has been moved from the south west silo to the south hot cell.

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