201208 R1ProgressRep

From New IAC Wiki
Jump to navigation Jump to search

8/1/12

Strung 28 Field wires on Sector 5 (now on SL2 - row 15).

Installed filters on Sector 6 chamber.

8/2/12

Strung 126 Field wires on Sector 5 (now on SL2 - row 33). Removed C1 pretensioner at row 25.

Strung 48 Sense wires on Sector 6 (now on SL2 - row 183).

Completed Tension Trend tests for both Sector 5 and 6 chambers.


8/6/12

Started training a new stringer today.

Strung 56 Field wires on Sector 5 (now on SL2 - row 41). Removed R1 pretensioner at row 40.

Strung 15 Sense wires on Sector 6 (now on SL2 - row 188).

We have repeatedly had issues with blocked feed throughs on both Sector 5 and Sector 6. Spent the afternoon cleaning out feed throughs on both chambers. We will use nitrogen to clear out any debris after the process is complete. There is a Field feed through at 167-11 in superlayer 1 that is completely blocked by glue inside the chamber. We also spent considerable time removing small metal pieces from inside Sector 6. They appear to be tiny circles of metal. Pictures of all of the above mentioned issues will be taken and uploaded tomorrow.


8/7/12

Continued training the new stringer on top stringing Sector 5.

Strung 84 Field wires on Sector 5 (now on SL2 - row 53).

Strung 39 Sense wires on Sector 6 (now on SL2 - row 201).

Completed cleaning out Sector 6 chamber of all debris. Nitrogen was used to blow particles down to the tail where they were removed. Some of the metal pieces did not move easily when blown. They were retrieved with a small probe and a steady hand. No wires were touched or otherwise damaged during the proces. We are seeing several pieces of fibrous, fluffy material stuck in the glue around the feed throughs in this chamber. The particles do not move with any amount of nitrogen blown in their direction. They appear to be well seated in the gluue.

We are waiting to clean out the Sector 5 chamber until the blocked feed through is replaced.

Temperatures in the cleanroom have increased with the addition of another person in the room. The temperature set point was lowered by one degree to 68° F. The humidity set point was increased to 45%.

8/8/12

A visual inspection of the top crimp pins on the Sector 5 chamber for the wires strung yesterday revealed that several crimp pins were not seated completely. The crimp pins were pushed in and the wire tensions were retested. Wires that are out of spec will be replaced. A conversation about the importance of seating crimp pins was had with all stringers present. Our new stringer is out sick today, however, the issue will be addressed tomorrow and additional training will occur.

Strung 51 Sense wires on Sector 6 (now on SL2 - row 218).


8/9/12

Additional training completed with new stringer. Restringing bad wires on Sector 5 has begun. Progress and crimp pin seating will be inspected at the end of each row of stringing.

Strung 30 Sense wires on Sector 6 (SL2 now complete). Will conduct visual inspection before rotation and alignment for stringing SL1.

Completed Tension Trend Tests for both chambers.


8/13/12

Blocked feed through on Sector 5. R1S5 blocked feed through ed.jpg


Damaged feed through on Sector 5. R1S5 damaged feed through ed.jpg


Blue glue on feed throughs on Sector 6. R1S6 blue glue ed.jpg

Fibers stuck in glue around feed throughs on Sector 6. R1S6 fiber in glue ed.jpg

Metal debris found in Sector 6. The pieces are between 1 and 2 mm in diameter. R1S6 metal debris ed.jpg


Strung 56 Field wires on Sector 5 (now on SL1 - row 61). Removed pretensioner C2 at row 60.

Rotated and aligned Sector 6 chamber for stringing Sense wires in SL1. Repositioned magnet and leveled stringing arm.

Strung 16 Sense wires on Sector 6 (now on SL1 - row 9).

8/14/12

Strung 105 Field wires on Sector 5 (now on SL1 - row 76). Removed R2 pretensioner at row 74.

Strung 48 Sense wires on Sector 6 (now on SL1 - row 25).


8/15/12

Strung 77 Field wires on Sector 5 (now on SL1 - row 87).

Strung 63 Sense wires on Sector 6 (now on SL1 - row 46).

The morning particle count was higher than normal. A complete clean was conducted prior to leaving for the day.

Began training the new stringer on bottom stringing Sector 5.


8/16/12

Strung 56 Field wires on Sector 5 (now on SL1 - row 95).

Strung 45 Sense wires on Sector 6 (now on SL1 - row 61).

Tension Trend Tests were completed for both Sector 5 and Sector 6 chambers.

Continued bottom stringing training with new stringer on Sector 5.


8/20/12

Strung 49 Field wires on Sector 5 (now on SL1 - row 102). Removed C3 pretensioner at row 100.

Strung 51 Sense wires on Sector 6 (now on SL1 - row 78).

Continued bottom stringing training with new stringer on Sector 5.


8/21/12

Strung 49 Field wires on Sector 5 (now on SL1 - row 109).

Strung 54 Sense wires on Sector 6 (now on SL1 - row 96).

8/22/12

Strung 49 Field wires on Sector 5 (now on SL1 - row 116). Removed R3 pretensioner at row 110.

Strung 51 Sense wires on Sector 6 (now on SL1 - row 113).


8/23/12

Strung 49 Field wires on Sector 5 (now on SL1 - row 123).

Strung 51 Sense wires on Sector 6 (now on SL1 - row 130).

Tension Trend Tests were completed for both Sector 5 and Sector 6 chambers.


8/27/12

Strung 56 Field wires on Sector 5 (now on SL1 - row 131). Removed pretensioner C4 at row 130.

Only had two stringers for the full day.


8/28/12

Strung 28 Field wires on Sector 5 (now on SL1 - row 135).

Strung 39 Sense wires on Sector 6 (now on SL1 - row 143).


8/29/12

Strung 49 Field wires on Sector 5 (now on SL1 - row 141).

Strung 51 Sense wires on Sector 6 (now on SL1 - row 155).


8/30/12

Strung 35 Field wires on Sector 5 (now on SL1 - row 146). Removed pretensioner R4 at row 144.

Strung 39 Sense wires on Sector 6 (now on SL1 - row 173).

All wires strung today were continuity tested to check for crossed wires.

Tension Trend tests were completed for both S5 and S6 chambers.

A weekly clean was performed on the cleanroom.


8/31/12

Picture of potted crimp pins

A083112 PottedCrimpPin.png

B083112 PottedCrimpPin.png

C083112 PottedCrimpPin.png

D083112 PottedCrimpPin.png