Heike R2012-02 R66: Difference between revisions

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=Time Table=
=Time Table=
[[Image:Icy_transfer-tube.jpg|right|thumb|200px|Bad vacuum!.]]


* 28.02.2012: FIRST DAY - CLOSING, CLEANING & PRECOOLING
* 28.02.2012: FIRST DAY - CLOSING, CLEANING & PRECOOLING
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** Precooling with 50l LN.
** Precooling with 50l LN.


{{clear}}


* 29.02.2012: SECOND DAY - LIQUID HELIUM
* 29.02.2012: SECOND DAY - LIQUID HELIUM
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** 17:00 : Status after two cans ('''188.8l LHe''') =T<sub>MC,Si</sub>=80K, T<sub>Magn,u</sub>=50K, p<sub>VC</sub>=0.45mbar
** 17:00 : Status after two cans ('''188.8l LHe''') =T<sub>MC,Si</sub>=80K, T<sub>Magn,u</sub>=50K, p<sub>VC</sub>=0.45mbar



{{clear}}


* 01.03.2012: THIRD DAY
* 01.03.2012: THIRD DAY
** 08:00 : Status = T<sub>Dewar</sub>=78K, T<sub>MC,Si</sub>=80K, T<sub>Magn,u</sub>=81K, p<sub>VC</sub>=0.67mbar, connect 3<sup>rd</sup> can LHe
** 08:00 : Status = T<sub>Dewar</sub>=78K, T<sub>MC,Si</sub>=80K, T<sub>Magn,u</sub>=81K, p<sub>VC</sub>=0.67mbar, connect 3<sup>rd</sup> can LHe
**
**


{{clear}}

Revision as of 08:35, 1 March 2012

NEW

  • Pt-NMR read-out via two s.s. mini-coax. Signal Coil is connected with port #1 and #3.

Time Table

Bad vacuum!.
  • 28.02.2012: FIRST DAY - CLOSING, CLEANING & PRECOOLING
    • Closing cyrostat and dewar. Cleaning/pumping lines.
    • Precooling with 50l LN.


  • 29.02.2012: SECOND DAY - LIQUID HELIUM
    • 07:50 : Status = TDewar=207K, TMC,Si=216K, TMagn,l=217K, pVC=2.15mbar
    • 09:55 : Start filling LHe
    • 17:00 : Status after two cans (188.8l LHe) =TMC,Si=80K, TMagn,u=50K, pVC=0.45mbar


  • 01.03.2012: THIRD DAY
    • 08:00 : Status = TDewar=78K, TMC,Si=80K, TMagn,u=81K, pVC=0.67mbar, connect 3rd can LHe