Let me add my 5 cents (44 oere) worth on geometry. There seem to be an obcession both by Rene and now by Christian to use a geant like geometry description - with geant like mother/daugther volumes, materials etc. This has very little to do with the geometry that is needed to do particle tracking, hit matching and even event displays. Speaking from a long experience with geant except for very simple and unrealistic detectors that description is way to convoluted for the first and primary purpose. This is the main reason for a much simpler dependence of the active areas of detectors being described relative to just a or two-level one-level up description of most of the brahms detectors, that Kris has implemented very recently, and which I trust will do the task for us. Flemming ------------------------------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov ----- Original Message -----
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