User Tools

Site Tools


phase2:modules

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revisionBoth sides next revision
phase2:modules [2015/01/27 16:54] dsalernophase2:modules [2015/01/28 09:45] dsalerno
Line 28: Line 28:
   68 210 30 70 210 30 24   68 210 30 70 210 30 24
  
 +End cap modules cannot be tilted around their transverse axis. This is an exceprt from the tklayout paper:
 +
 +    Modules can be rotated around their longitudinal axis by a skew angle α. This effectively
 +  increases the resolution seen by tracks by a factor cos(α), but, on the other hand, reduces the
 +  φ-aperture by the same amount.
 +    tkLayout also supports rotating barrel modules around their transverse axis by a tilt angle β,
 +  in a layout called “tilted barrel” (see figure 6), where barrel modules are increasingly tilted the
 +  further they are on the z axis (up to β = π/2 when they effectively become endcap modules). The
 +  advantage of the tilted layout is that the modules’ aperture in θ (the angle relative to the beam
 +  axis) is increased, so the number of modules to cover the same volume is reduced, to the benefit of
 +  material amount and cost.
phase2/modules.txt · Last modified: 2015/01/28 09:58 by dsalerno