About this version of CSPad alignment
- Quads are aligned individually using their natural coordinates as in optical measurement (top-left corner is an origin, nearest point to the beam spot).
- Sensors are aligned based on their center point position from optical measutement.
- Center coordinates were float with precision of 1 um.
- Additional hand-made offset is applied based on deviation plots.
- Tilt angles were taken into account.
- After sensor translation and tilt rotation coordinates are rounded to integer numbers in order to insert everything in 2-D array.
Earlier versions of CSPad alignment
CSpad Alignment - v2011-05-25
CSPad Alignment - v2011-06-14
Alignment tool
- Takes image of CSPad or quad from 2-D array
- Draw lines along the wire shadows
- Interactively adjust line coordinates
- Plots:
- image
- image profile
- deviation of the shadow "center of gravity" from line along the line
Deviation of the wire shadows from lines
Quad 0
Quad 1
Quad 2
Quad 3
Overview
Content Tools