2020/12/15 (Tuesday)
- Lab in-person: Matt
- Virtual partner: Zach
| Status | Run 74 prep. 1K Pot pumped out and isolated. Fridge and 4He and LN2 Trap 1 isolated, not pumped out. Cryostat vacuum jacket pumped out. IVC open, tower removed. |
|---|---|
| 1140 | Matt enters lab |
| 1310 | Measure out 40 cm of NbTi wire from the second coil, then tape it onto the spool.  |
| 1315 | Do video lab tour |
| 1340 | Put second source mover motor spool on winder shaft and wrap free end around shaft, tape it down.   |
| 1350 | Wind NbTi onto spool. Here's a video of the procedure: |
| 1400 | Finish winding NbTi onto spool. Carefully tape down the wound end before removing from the winder shaft, to avoid the disaster yesterday of the two ends getting tangled.  |
| 1420 | Finish taping down the two ends on both of the spools with several cm loose, so Ruiren can electroplate them.  |
| 1450 | Matt leaves lab |
| 1510 | Ruiren says that the two rewound coils each have resistances around 7.5 kΩ. This is close to what was measured previously. Ruiren has electroplated one end of each coil:  |