The AURIGA photo album: RUN1

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Here you will find a collection of photos taken before the cryostat was closed. Click on the photos for bigger pictures (200KB÷500KB). 
AURIGA people1. The people of the AURIGA collaboration that co-worked for building the detector. Some of the are gone but some are still part of the group.
refrigerator2. A view of the dilution refrigerator unit and of the thermal links between the d.r. unit and the thermal shields of the IVC.
electronic readout3. A view of the electronic readout, namely: the high voltage decoupling capacitor, the inductances, the SQUID amplifier, the calibration magnet and the cryogenic switch. Each component is housed inside a lead-deposited copper box, in the IVC.
suspension4. A detailed view of the cables that suspend the thermal shields. These cables act also as springs in the mechanical suspension design. On the extreme left the belly cable that suspends the bar can be appreciated.
Liquid He tank5. A view of the liquid Helium vessel inside the cryostat and of the aluminum thermal shields in the OVC. Layers of aluminated mylar are used as thermal shields against radiation heat transfer.
thermal links6. A view of the thermal links for the cables that carry the signals of the thermometers in the IVC. The thermal links between the cold plate of the dilution refrigerator and the middle thermal shield inside IVC are also shown.
thermal links7. A view of the thermal links for the cables that carry the signals of the thermometers in the IVC.
mixing chamber8. A view of the bottom flange of the mixing chamber and of the thermal links between this flange and the belly cable that suspends the bar. Also shown is the electronic readout, namely: the high voltage decoupling capacitor, the inductances, the SQUID amplifier, the calibration magnet and the cryogenic switch. Each component is housed inside a lead-deposited copper box, in the IVC. A couple of aluminum cones are screwed to the bar around its middle section: they are used to anchor mechanically the cables that carry the signals from the transducer and the calibrator.
cold finger9. A view of the cold finger between the liquid helium vessel and the external auxiliary dewar usable for an independent housing of the readout electronics. The cold finger  passes through the aluminum thermal shield of the OVC.
10. Far: complete view of the closed cryostat (in yellow);  front: pumps and control cabinet of the dilution refrigerator; middle: pumps for the IVC and the OVC.
11. The room of the data acquisition.

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