~LSST Test and Commissioning Cryostat~
| Cryostat/camera for
operating 9-CCD modules of the Large Synoptic Survey Telescope's
189-CCD focal plane array. A bunch of these are being produced, one
of which will be installed on the telescope as the Commissionoing
Camera before the full-size camera is installed. Uses closed loop cryogenic regrigeration systems servicing two
thermal zones, one for cooling the CCD array and one for the
readout electronics. CCD baseplate attaches to low thermal expansion
kinematic support structure.
Star Trek! These cryostats are being named afte the Dax symbionts in reverse chronological order (Deep Space 9). Ezri was commissioned in 2014, Jadzia and Curzon are being assembled now, etc.
First of several copies of this cryostat.
Prototype readout electronics (rear view).
9 CCD array seen through front window. Aperture accepts a telecentric f/1.2 beam.
CCD-side of internal mechanical assembly with X-ray Exposure Devices.
Early build of internal mechanical assembly, design is now quite different.
Early image .