Speaker
Dr
Lei Xia
(Argonne National Laboratory)
Description
We report on the construction of a large scale prototype of a Digital
Hadron Calorimeter (DHCAL), utilizing Resistive Plate Chambers (RPCs)
with 1 x 1 cm^2 readout pads as the active medium. The design of the
calorimeter was optimized for the application of Particle Flow Algorithms
to the measurement of hadronic jet energies.
The calorimeter prototype measures about two cubic meter and contains 52
active layers, interspersed with steel absorber plates. The total number of
readout channels is close to 500,000. Each channel is read out with a
1-bit resolution, hence the designation of digital calorimeter.
Construction of the prototype was completed in October 2010. Since then,
the calorimeter has undergone extensive testing in the Fermilab test beam.
In this talk, after a general introduction into imaging calorimetry, we
will review the design and construction of the RPCs and of the electronic
readout system.
Primary author
Dr
Lei Xia
(Argonne National Laboratory)
