The AURIGA photo album: RUN2

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Here you will find a collection of photos taken before the cryostat was closed for the AURIGA RUN2. Click on the photos for bigger pictures (50KB÷500KB). 
1. Side view of the AURIGA suspension for run2. The columns and the bar are clearly visible. Also the liquid Helium vessel and the thermal shields, which come unchanged from run1.
2. Front view of the bar suspension in the AURIGA run2. The columns are shown, along with the liquid Helium vessel which comes unchanged from run1.
3. Another front view of the bar in the final assembling (also available 500kB file). Here also some thermal contacts are seen, along with cables for thermometers.
  1. 4. The cable that support the bar from its center of mass. The cable shown is a test one, made out of CuAl: in AURIGA run2 we are using an identical cable made out of CuBe
5. Close view to the bar final suspension: the cable that supports the bar center of mass emerges from the bar itself and is anchored to the rest of suspension (also available 450kB file).
6. View of one of the columns which are the central parts of the AURIGA RUN2 suspension, achieving most of the required mechanical isolation.
7. View of the detector in the second run. The bar is seen hanging from the suspension (actually, here a frame at the shown end of the bar prevents it from falling down). The readout assembly (ie capacitive transducer, transformer and SQUID amplifier) is clearly seen attached to the shown end of the bar. On top of the bar, along its longitudinal axis, some masses are attached that hold the cables (not shown) that goes to and from the readout assembly: the masses are connected to the bar by means of springs, to minimize the added noise. At the time of the picture, an accelerometer was attached to the bar end face: it is shown here with its blue cable.
8. The readout assembly (ie capacitive transducer, transformer and SQUID amplifier) is clearly seen attached to the end of the bar.
9. View of the detector in the second run. The bar is suspended horizontally. The readout assembly (ie capacitive transducer, transformer and SQUID amplifier) is clearly seen attached to the shown end of the bar. On top of the bar, along its longitudinal axis, some masses are attached that hold the cables that goes to and from the readout assembly: the masses are connected to the bar by means of springs, to minimize the added noise.
10. View of the detector in the second run. The bar is seen hanging from the suspension (actually, here a frame at the shown end of the bar prevents it from falling down). The readout assembly (ie capacitive transducer, transformer and SQUID amplifier) is clearly seen attached to the shown end of the bar. On top of the bar, along its longitudinal axis, some masses are attached that hold the cables (not shown) that goes to and from the readout assembly: the masses are connected to the bar by means of springs, to minimize the added noise. At the time of the picture, an accelerometer was attached to the bar end face: it is shown here with its blue cable.
11. Lower end of the new dewar and the 'spaghetti' thermal links to the bar (also available 450kB file)
12. A top view of the new dewar installed in the cryostat: the outer thermal shields of the dewar are clearly seen (also available 450kB file).
13 Bottom view of the 'spaghetti' thermal links to the bar (also available 420kB file).
 

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