Station Acceptance Test Update

News We’ve received a water cooled He compressor + gas hoses (from RAL) and a chiller (from DESY) dept. requires electrical tests first (compressor needs a 3-phase plug fitted by an electrician) do a simple cooling test for the chiller + write a little monitoring interface Mechanical pieces thick Pb is difficult to get hold of & also to machine  go for Brass 29/11/2006 M. Takahashi

Data Taking (discussion from TkWkshop) Source scan run Move the source perpendicular to the fibre run on each view 100 micron steps x 3 lines  27k points to scan Aim for 10k events per ch per line = 2k events per point = ~10 sec per point @ 200Hz  3.2 days per station @ 200Hz 6.4 days per station @ 100Hz would still be alright, or we can simply do with a reduced statistics (Source is active enough to achieve 200Hz in 10 months time) 29/11/2006 M. Takahashi

Data Management Information independent of individual station test channel mapping readout component details (which cassette, boards) Data from a complete station test  zipped & stored pedestal: 10k events worth of raw data (50MB) + pedestal values source scan: ~1GB of data per station after zero suppression each hit accompanied by channel # (AFE ch #) & station position disposable histograms of CM for monitoring? run info: station ID, date stamp, a list of pedestal values Summary file at the end of a station test  readily accessible histograms of hits (in a graphical form) for each channel? channel position (pitch) identified from data channel LY & uniformity graphs + list of values flag on problematic channels & make a note + Anything that I’ve missed… 29/11/2006 M. Takahashi