Difference between revisions of "Alignment"

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(Created page with " <pre> 1) create straw centers along the x axis, with inner most straw at x=0, direction pointing along +y 1a) apply panel alignment rotation in this basis as a right-handed...")
 
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   the panel in the plane: push it out the x axis, tweak the z,
 
   the panel in the plane: push it out the x axis, tweak the z,
 
   rotate about the z axis.
 
   rotate about the z axis.
2a) apply the panel alignment rotion in this basis
+
2a) apply the plane alignment rotion in this basis
 
from db delta values rx, ry, rz
 
from db delta values rx, ry, rz
2b) apply the panel offset in this basis
+
2b) apply the plane offset in this basis
 
from db delta values dx, dy, dz
 
from db delta values dx, dy, dz
 
3) apply the nominal transformation to place the
 
3) apply the nominal transformation to place the

Revision as of 19:32, 28 February 2019

1) create straw centers along the x axis, 
 with inner most straw at x=0, direction pointing along +y
1a) apply panel alignment rotation in this basis
as a right-handed rotation about x, then y, then z
from db delta values du, dv, dw
where u=x, v=y, w=z.  using u,v,w empahsizes that
these are not the experiment coordinates for the panel
1b) apply panel alignment postion, in this basis
 using db values du dv and dw
2) apply the nominal geometry transformaton to put
  the panel in the plane: push it out the x axis, tweak the z,
  rotate about the z axis.
2a) apply the plane alignment rotion in this basis
from db delta values rx, ry, rz
2b) apply the plane offset in this basis
from db delta values dx, dy, dz
3) apply the nominal transformation to place the
 plane in the tracker - shift along z
2a) apply the detector alignment rotion in this basis
from db delta values rx, ry, rz
2b) apply the detector offset in this basis
from db delta values dx, dy, dz