Alignment: Difference between revisions
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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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Line 13: | Line 13: | ||
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 | 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 | 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