Hi I had some questions about the geometry. For the TPCs the size in the database is the size of the active box, so the width is number of pads times the pad pitch. This is true for TPM2 and for T1, but not for TPM1 where the size corresponds to the old padpitch (38.4 = 96*0.4) and not the new 37.44 and T2 where the width of 39.6 is slighty larger than the calculated 39.2. In the last case it is interesting that the change in pad pitch is from 0.35 to 0.3536 which does not sound like a lot, but it would change the slope in x by 1% since it is not the width of the TPC, but the pad pitch that is used to calculate the hit position. I also had a question about the dimensions of C1 being 52.0 x 26.0 x 80.0. In brag it is 52.0 x 26.0 x 80.8 <- and in the NIM it is 50 x 40 x 80 (which is not consistent with figure 4). Cheers Peter -- :-) --------------------------- )-: Peter H L Christiansen @ NBI EMAIL : pchristi@nbi.dk OFFICE : Tb1@NBI (353 25269) HOME : Hjertensfrydsgade 3, st <-- New PHONE : 40840492 (Mobile) :-D --------------------------- \-:
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