Mon. 29.1.2007, 17:00 present: Klempt, Riegler, Lesenechal, Lenoir, Behrens, Van Beelen

TPC measurements discussed. Decision: If all values are within +-1mm we stop. Horizontal alignment is very difficult. Final survey results O.K. --> TPC is aligned. See survey results.

+-1mm on the TPC axis gives 2mm/5m=0.4mRad angle between beam axis and TPC axis --> O.K. with Safarik.

+-1mm in height difference between I-side and O-side vives 2mm*1m/5m=0.4mm difference in height between the ITS rails. This is no problem for ITS installation --> O.K. with Simonetti.