Readout and Detector Positions
The silicon tracker was read out using the ATLAS SCT dsp-module. Two
detectors were readout on one link, so
in total three links were read.
There are six detector positions (0...5). detector position 0 is the
most upstream one.
------------------> | | | | | |
beam directions 0 1 2 3 4 5 detector position
x-directions:
The strips running parallel to the earth ( measuring up/down ).
Strip 0 is up, strip 191 is down.
y-directions:
The strips running perpendicular to the earth ( measuring left/right
).
Strip 0 is the most right strip, Strip 191 the most left one (looking in
the direction of the beam).
Assignment of detector position and readout:
detector
position |
side |
link Nr |
bits in readout |
| 0 |
x
y |
2 |
384 - 577
578 - 767 |
| 1 |
x
y |
2 |
0 - 191
192 - 383 |
| 2 |
x
y |
1 |
384 - 577
578 - 767 |
| 3 |
x
y |
1 |
0 - 191
192 - 383 |
| 4 |
x
y |
0 |
384 - 577
578 - 767 |
| 5 |
x
y |
0 |
0 - 191
192 - 383 |
This page was last modified Nov 13-97 by Wilko