20 likes | 215 Views
Y. Z. X. X, transverse direction Y, normal direction Z, axially direction. FEM Results. 5 500 38. Y. Z. X. X, transverse direction Y, normal direction Z, axially direction. Stave deflections. X direction pixel width = 50 microns sigma = 50/sqrt(12) = 14.4 microns
E N D
Y Z X X, transverse direction Y, normal direction Z, axially direction FEM Results 5 500 38
Y Z X X, transverse direction Y, normal direction Z, axially direction Stave deflections X direction pixel width = 50 microns sigma = 50/sqrt(12) = 14.4 microns allowed deflection = 14.4/3 = 4.8 microns Y direction pixel length = 400 microns sigma = 400/sqrt(12) = 115.5 microns allowed deflection = 115.5/3 = 38 microns Z direction straight line fit error in z converted to error in x,y estimate = 500 microns MC simulation much better – needs to be done ATLAS requirement = 80 microns