Speaker
Jose Repond
(Argonne National Laboratory)
Description
The Digital Hadron Calorimeter (DHCAL) is a large scale
prototype of an imaging calorimeter, using Resistive Plate
Chambers (RPCs) as active medium. The calorimeter counts
close to 500,000 readout channels.
In this talk we will present the measurement of the
performance parameters of the RPCs, i.e. the noise rate,
the MIP detection efficiency and the pad multiplicity.
The measurements were performed using trigger-less, as
well as triggered data taking in the muon beam of the
Fermilab test beam facility. Results are presented on
the geometrical alignment, the scan of the response
across a single readout pad and the response over the
entire surface of the active layers of the calorimeter.
The noise rate measurements identify uncorrelated and
correlated noise, as well as effects from the electronic
readout system.
When appropriate the measurements are compared to Monte
Carlo simulations of the setup.
Primary author
Jose Repond
(Argonne National Laboratory)
