Friday, August 3, 2012

Loading the filters into ODI, detectors are alive

Over the course of several hours we loaded the four ODI filter into the instrument today. Each filter is about 40 cm x 40 cm large, and each costs the equivalent of a my dream sports car (I am thinking Audi TT here, if you would be so kind...). SA lot of time was spent practicing the procedure with aluminium blanks instead of glass. By the time we started the installation, we were very confident in the procedure.  The pictures of the installation are posted below. 

As of now we have four filters for pODI: SDSS g', r', i', and z'. This is the entire filter set for now, but yesterday Gary Muller released the drawings for filter adaptors that will allow Mosaic (about 6 inch size) filters to be used with pODI. We expect to have them by November or so. 

Andrey spend most of the day adjusting the data acquisition software to the new mountain environment.  At the end of the day, he was able to take the first bias and dark exposures to proof that the detectors are alive and well – a very good conclusion for the second week of installation. 


Gary Poczulp installs a filter into its module.

Lifting the filter module to the instrument. 
Charles verifies that the filter is properly seated.  
The z' filter is moving into the instrument. 

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