The Multiwire Proportional Chambers
of the KASCADE Central Detector
The Central Detector of the KASCADE experiment consists of a hadron
calorimeter of 20m x 16m (3800 t iron absorber) and a thickness of 11
nuclear interaction lengths.
The third layer of the sampling calorimeter, is equipped with a trigger
and fast timing facility (red) which enables measurements of
the arrival time distributions of muons. For muon
identification, the trigger detectors operate in
coincidence with the multiwire proportional chambers MWPC (blue) below the
(The z-axis in the picture is stretched by a factor 2).
The Multiwire Proportional Chambers (MWPC):
This facility is built up by 32 chambers (turquoise), 16 stacks with
two chambers each, covering 41 % of the total central detector area
and more than 60 % in an inner ring of radius 8 m .
Schematic view of one MWPC:
Every chamber contains of three layers of wires and stripes
in a 18mm gas volume:
The crossed layers allows to estimate the crossing points
of penetrating particles in high accuracy:
First Measurements with the MWPCs:
myon lateral distributions
Multifractal Moments Analysis
The MWPCs have been deactivated on 30-March-2009
Back to KASCADE
For further Informations please contact
To the homepage of Andreas Haungs.