Page History

This note is a proposal Proposal for precise geometry parametrization of planar imaging detectors.

Content

Tile ideal geometry

...

     (Xmin,Ymax)      ^ Y          (Xmax,Ymax)
     (0,0)            |            (0,387)
        ------------------------------
        |             |              |
        |             |              |
        |             |              |
      --|-------------+--------------|----> X
        |             |              |
        |             |              |
        |             |              |
        ------------------------------
     (184,0)          |           (184,387)
     (Xmin,Ymin)                  (Xmax,Ymin)

...

Memory model

It is assumed that each tile is presented in DAQ or offline data by a single block of memory.  Uniform matrix-type geometry of pixel array is preferable, but  other geometry can be handled, for example like in CSPAD 2x1 sensor. Detector data record consists of consecutive tile-blocks, in accordance with numeration adopted by DAQ. For effective memory management, some of the tile-blocks may be missing due to current detector configuration. Available configuration of the detector tile-blocks should be marked in a  bit-mask word in position order (bit position from lower to higher is associated with the tile number in DAQ).

...