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| [[NikaRun11|Back to the NIKA run 11]] |
[[Continuum/PoolOrganization/3rdNIKApool|Back to the 3rd Open Pool]] |
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| == January 20th 2015 == '''9h00 UT:''' Santiago stars operations to cool down the NIKA cryostat in contact with Andrea and Martino from Grenoble '''STATUS OF THE INSTRUMENT''' '''9h00 UT:''' Connection with automat restored. It does not work well, we lost connection few times in the morning. We probably need to change but for the moment we choose to continue. '''9h00 UT:''' Status of the Camera pulse tube : J5=352mbar '''09h30 UT:''' Santiago connected the cryostat to the leak detector. '''10h00 UT:''' Pumped the dilution circuit (until Jpi=8x10e-3mbar). Trap pumped and emptied. '''10h30 UT:''' Warm impedance test: about 30mbar/min at 3bar. Consistent with the last cooling down. '''11h00 UT:''' Circulation throught the capillar starts. '''12h00 UT:''' Leak test: OK '''13h30 UT:''' M5 and M6 mounted. Optical alignment of the cryostat with Santiago, OK. '''14h00 UT.''' Pulse Tube on. Low pressure and High pressure OK. Mixture circulates at 2.95bar (J4) and 950mbar (J2 with preref on). |
== February 10th 2015 == |
