Detectors

Two E2V CCD231-42 detectors with Deep-Depletion silicon and a broad-band Multi-2 AR coating and with the added E2V fringe suppression process have been delivered to Copenhagen University on April 2, 2013. As part of the programme to take over the testing and characterisation of CCDs, a visit to Copenhagen will take place April 15-26, 2013 to learn and gain some practical experience in the procedure used. This will probably include the writing of a commission report for the two new identical CCDs for FIES and ALFOSC.

Some preliminary work has been done by looking through the existing IDL code for analysing the test data. Since we will probably not want to use IDL, an existing program written in Python to determine the linearity has been modified to be compatible with the Copenhagen IDL version. It is hoped that if the test and characterisation is moved to La Palma all the analysis code can be ported to Python.