Heike R2014-00 R68: Difference between revisions
From KIP Wiki
ā§¼kip-jumptonavigationā§½ā§¼kip-jumptosearchā§½
| Line 3: | Line 3: | ||
= NEW = |
= NEW = |
||
* Switch/Relais Box for a easier and better operation of the persistent current switches of the current lines and both magnets. |
|||
* |
|||
* HF coax wiring for the paddle experiment: Two Semi rigid coax cables(Type: SC-160/50-NbTi-NbTi) connecting the experiment mounted underneath the Cu-Stage with the heat sinks at the mixing chamber (Coax #5 & #6). With the help of an "extender", made of a long silver rod, the experiment is placed in the centre of the lower magnet and can be exposed to a magnetic field up to 9T. |
|||
* |
|||
* HF coax wiring for the Echo experiment leading from the heat sink at 4K to a heat sink at the mixing chamber. The Echo Experiment is mounted on the top side of the Cu-Stage and connected with superconducting semi rigid coax cables (Type: SC-160/50-NbTi-NbTi) with this heat sink. |
|||
* |
|||
Revision as of 08:02, 29 January 2014
First RUN since more than one year!!!
NEW
- Switch/Relais Box for a easier and better operation of the persistent current switches of the current lines and both magnets.
- HF coax wiring for the paddle experiment: Two Semi rigid coax cables(Type: SC-160/50-NbTi-NbTi) connecting the experiment mounted underneath the Cu-Stage with the heat sinks at the mixing chamber (Coax #5 & #6). With the help of an "extender", made of a long silver rod, the experiment is placed in the centre of the lower magnet and can be exposed to a magnetic field up to 9T.
- HF coax wiring for the Echo experiment leading from the heat sink at 4K to a heat sink at the mixing chamber. The Echo Experiment is mounted on the top side of the Cu-Stage and connected with superconducting semi rigid coax cables (Type: SC-160/50-NbTi-NbTi) with this heat sink.
EXPERIMENTS
- Thermometry: Noise Thermometer and Pt-NMR Thermometer
- Paddle Experiment: Zr55Cu30Al10Ni5 (M. Hempel)
- Echo Experiment: BK-7 (M. Wolter)
TEST
TIME TABLE
- XX.XX.2014: FIRST DAY - CLOSING, CLEANING & PRE-COOLING
- Closing cryostat and dewar. Cleaning/pumping lines.
- Exchange gas pVC~3mbar.
- : Pre-cooling with 50l LN.
- XX.XX.2014 : SECOND DAY - LIQUID HELIUM
- XX:XX : Status = TDewar=??K, TMagn,l=???K, pVC=??mbar
- XX:XX : Start filling LHe
- XX:XX : During 3rd can (after ~ 230 LHe in total): TRuOx=4.6K, pVC=3.3*10-3mbar
- XX:XX : Pump VC
- XX:XX : He 100%, LHe in total ~????l
- XX:XX : Stop pumping VC, pVC=??*10-5mbar
- XX.XX.2014: THIRD DAY - MIX IN
- XX:XX : Status = pVC=??*10-5mbar, TMC,RuOx=???, TMC.Si=??K
- XX:XX : Start condensing mix. T1=683mbar, T2=695mbar, T3=0mbar, p4=973mbar.
- XX:XX : Close Heat-Switch (IPCS#4=1.5A, IH=0.5mA) @ TRuOx=600mK
- XX:XX : IStill=3.0mA, TRuOx=580mK
- XX:XX : All mix is in, all pumps are running.
- XX.XX.XX: - RAMP MAGNET
- XX.XX.XX: - DEMAG
- XX.XX.XX: MIX OUT
- XX:XX : Start filling mix into the tanks.
