UMN CDMS Wiki archive
start › cdms › k100 › run_diary › 20200204

2020/02/04 (Tuesday)

Previous Day

1000 Continue work on source mover motor, pulling out solder connections and planning to heat sink them.
1afc56c0-4e34-4d92-bf49-ca824c2605f9.jpeg 3db053e3-4e2b-460f-a037-9fb9c2ec171d.jpeg d47aedc0-ec24-4da8-8308-2c7dcbd7c2d0.jpeg
Both joints in the outer coil can feed out of the big slot, but the yellow one
is pretty short
A look at the two joints in the outer coil and how far they extend out of the
slot.
Pulling out the joints from the inner coil, after removing Teflon tape and
yellow tape.
009508e2-4b01-47bf-be67-f4f29e43654b.jpeg 71d8df74-216e-459c-9095-3651737c61a2.jpeg a9977542-d0e9-4474-b03e-9fb1ddb028f2.jpeg
Motor removed from base plate and decoupled from threaded rod Rotor removed Rectangular guide rod detached from motor base plate
8fdf823d-0045-49bd-a7a9-d8ecde1d3d93.jpeg 8bbf312e-8291-4ee6-8419-f756c238570d.jpeg 413062a7-a9fd-42f3-818c-410a3e6dee80.jpeg
Motor base plate removed from housing base plate All solder joints can be pulled out of the big slots The plan: a little tab along the motor housing slots, idea is to epoxy all
joints to this.
1340 Continue work on source mover motor wiring heatsinking in the clean room. {:cdms:k100:run_diary:img_2937.jpg?400}}
img_2929.jpg img_2930.jpg img_2931.jpg
Applied kapton tape holding the coil ends in place on the inner coil Applied teflon tape over the inner coil Applied yellow tape over the inner coil
img_2932.jpg img_2934.jpg img_2935.jpg
Assembled inner coil in the housing Removed the shrink wrap on the solder joints,
once removed the wire was able to be extended somewhat
Applied kapton tape and removed the shrink wrap for the outer coil,
the solder joints on this coil did not extend as far out
img_2936.jpg img_2937.jpg img_2938.jpg
Applied teflon tape and yellow tape over the outer coil Inner and outer coil joints ready to be coated in stycast Stycast coated over the joints, left to cure
1500 Modified G101c arrives from TAMU
1530 Pump out GHS and LN2 traps in preparation for cryocleaning. Before pumpout, G1/P1/Trap1/Trap2 = 45.7/4.5/2.3/3.1 mbar.
1540 G101c brought into clean room for electrical checks.
1550 Channel B on DIB4 gives 118.3 Ohms, all other channels found to be open, no shorts to ground found.

Next Day