About this version of CSPad alignment

• Sensors in quads are aligned individually (see CSPad Alignment of quads for cxi80410-r0628) using their natural coordinates as from the optical measurement (top-left corner is an origin, nearest point to the beam spot).
• Quads are rotated and inserted in uniform 2-D array with appropriate offsets.

Earlier versions of CSPad alignment

CSpad Alignment - v2011-05-25
CSPad Alignment of quads - v2011-06-14
CSPad Alignment of quads for cxi80410-r0628

Alignment tool

• Takes image of CSPad or quad from 2-D array
• Draw lines along the wire shadows
• Interactively adjust lines along the wire shadows
• Plots:
  • image
  • image profile
  • deviation of the shadow "center of gravity" from line along the line

Alignment parameters

Alignment of sensors in quads

See CSPad Alignment of quads for cxi80410-r0628 for sensor position parameters in quads.

Quad nominal rotation angle (dergee)

 self.quadInDetOrient = [180, 90, 0, 270]

Quad corner X and Y coordinates (in pixel)

    off    = 30
    gapX   =  0
    gapY   =  0
    shiftX = 18
    shiftY = 18

    quadXOffset = [ off+0-gapX+shiftX,  off+  0+1-gapX-shiftX,  off+834+0+gapX-shiftX,  off+834+0+gapX+shiftX]
    quadYOffset = [ off+0-gapY-shiftY,  off+834-3+gapY-shiftY,  off+834-0+gapY+shiftY,  off+  0+2-gapY+shiftY]

Deviation of the wire shadows from lines

Large plots are for tilted ASICs, icons for non-tilted.

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs

- non-tilted ASICs