Heike R2010-11 R65

NEW

• Squid-Wiring for one two-stage Squid
• Two Lemo plugs and four coax-feedthroughs on top of cryostat.
• RuOx-000 Thermometer on lower MC platform.
• New Still-heater!! old one was broken? New resitance R_STILL=1.13k${\Omega }$.
• New Noise-Thermometer mounted on Demag-Stage read out by two Squids.

Summary

• 30.11.11: COOLING DOWN
  • 10:30 : Start closing Cryo
  • 14:00 : Dewar closed , start pumping dewar. All lines pumped, all pumps tested.
  • Exchange gas: p_VC=10mbar.
  • 15:00 : Start filling nitrogen
  • 17:12 : Dewar Pt-100 shows LN.

Checking Filterboxes

• done!
• details will be added :)