Commit 7efca433 authored by Simon Spannagel's avatar Simon Spannagel
Browse files

StaggeredPixelDetector: add documentation

parent 78ece889

doc/tikz/staggered.tex

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\tikzset{%

  >=latex

}

\begin{tikzpicture}[thick]

    % Define pixel size and offset

    \def\psize{1.5cm}

    \def\offset{0.4cm}



    % Draw bottom row (no offset)

    \draw[fill=blue!10] (0,0) rectangle (\psize,\psize);

    \draw[fill=blue!10] (\psize,0) rectangle (2*\psize,\psize);



    % Draw top row (with offset)

    \draw[fill=blue!20] (\offset,\psize) rectangle (\offset+\psize,2*\psize);

    \draw[fill=blue!20] (\offset+\psize,\psize) rectangle (\offset+2*\psize,2*\psize);



    % Draw horizontal offset arrow

    \draw[<->,very thick,red] (2*\psize,0.5*\psize) -- ++(\offset,0)

        node[midway,below] {$\delta$};



    % Label pixel dimensions

    \draw[<->,thick,teal] (2*\psize+0.5cm,0) -- ++(0,\psize)

        node[midway,right] {$p_y$};

    \draw[<->,thick,teal] (0,-0.5cm) -- ++(\psize,0)

        node[midway,below] {$p_x$};



\end{tikzpicture}

doc/usermanual/05_geometry_detectors/03_modelgeom.md

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@@ -14,8 +14,19 @@ selected via the parameter `geometry` in the detector model file. 
This geometry is the default assumed for any detector without the `geometry` keyword. The individual channels are rectangular

pixels, the `pixel_size` parameter denotes the pitch in Cartesian `x` and `y` direction.



This geometry can be selected using `geometry = pixel`

This geometry can be selected using `geometry = pixel`.



## Staggered Pixel Matrix on a Cartesian Grid



This geometry is an extension of the regular Cartesian grid and, in addition to the pixel pitch described above, it allows to

configure a pixel offset for odd rows of the detector matrix using the `pixel_offset` parameter. The pixel offset needs to be

provided in fractions of the pixel pitch and needs to be between $-1.0 < p < 1.0$.



![Staggered Matrix](./staggered.png)\

*Definition of a staggered pixel matrix. $`p_x`$ and $`p_y`$ indicate the pixel pitches along these Cartesian coordinates,

$`\delta`$ denotes the relative offset of the odd rows*



This geometry can be selected using `geometry = staggered`.



## Hexagonal Pixels
@@ -46,7 +57,7 @@ overall grid dimensions as demonstrated below: 
![Hexagonal pixel grid](./hexagon_grids.png)\

*Grid layouts for pointy (left) and flat (right) hexagons with a size of 8-by-4 pixels.*



This geometry can be selected using `geometry = hexagonal`

This geometry can be selected using `geometry = hexagonal`.





## Radial Strips

doc/usermanual/05_geometry_detectors/staggered.png

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