Gerd, Regarding our beam request for next year we would like to have in total about 5 weeks of test beam to operate gaz chambers and the relevant electronics and read out. I cannot tell the precise schedule at the moment, however it seems that 2 weeks during april-may, then 3 weeks later that is after august 15 or during september would be our best choice. In case we find that it is essential (and possible) to perform tests on the M2 beamline, we will let COMPASS know well in advance. Salut, Alain