UMN CDMS Wiki archive
start › cdms › k100 › run_diary › 20240923

2024/09/23 (Monday)

Previous Day

  • Lab in-personnel: Himangshu
Status MC(H35) = 120 mK. Checking Source Mover Coils
In previous run, we checked source mover motor coil resistances at base temperature ~ 35 mK and found values : X1/X2/Y1/Y2 = 32.4/43.6/37/21.6 Ohm.
Checking coil resistances: X1/X2/Y1/Y2 = 31.4 / 57 / 36.9 /19.8 ohm
At room temperatures, the resistance are close to 110 ohm on each coil. This would mean we need to create a circuit with an effective resistance of 110 ohm
using resistances in series, we set the coil resistances: X1/X2/Y1/Y2 = 126.8 /109 /103.8 /127.9 ohm