81 research outputs found
Construction of a Digital Hadron Calorimeter
The DHCAL collaboration is assembling a large scale prototype Digital Hadron
Calorimeter (DHCAL). The calorimeter utilizes Resistive Plate Chambers (RPCs)
as active medium and features of the order of 400,000 1 \times 1 cm2 pads with
binary (or digital) electronic readout. The purpose of the prototype is to
provide detailed measurements of hadronic showers and to prove the concept of a
DHCAL with RPCs as active elements
Multi-hadron Final States
This summary aims to highlight major results and insights gained from recent
studies of hadronic final states in ep, ppbar, e+e-, as well as relevant
theoretical developments, presented in the Multi-hadron final states parallel
sessions of the DIS2002 workshop held in Krakow, Poland in May 2002.Comment: Contributed to the X International Workshop on Deep Inelastic
Scattering (DIS2002), Krakow, Poland, 30 April - 4 May, 200
Analysis of Muon Events in the DHCAL
The Digital Hadron Calorimeter (DHCAL) is a large prototype of an imaging
calorimeter using Resistive Plate Chambers (RPCs) as active media. The readout
is segmented into 1\times1 cm2 pads, each with a single bit resolution, hence
the denomination of digital. The total channel count is close to 500,000. The
DHCAL construction and assembly was completed in fall 2010, followed by a
series of test beam campaigns in the FTBF test beam at Fermilab.
In this paper we report on the analysis of events collected with the
broadband muon beam. These events are utilized to geometrically align the
layers horizontally and vertically, to establish the response as function of
position on a single readout pad, and to measure the performance
characteristics of the RPCs, i.e. the efficiency and average pad multiplicity.
The latter were measured in both 'clean' regions of the detector, i.e. away
from structures such as the rims of the chambers, and as function of position
on the entire vertical plane. In addition, the paper reviews the preliminary
measurements of the noise rate in the detector
Overview of the DHCAL Project
We review the status and plans of the Digital Hadron Calorimeter with
Resistive Plate Chambers project
Resistive Plate Chambers for Imaging Calorimetry - the DHCAL
The DHCAL, the Digital Hadron Calorimeter, is a prototype calorimeter based
on Resistive Plate Chambers (RPCs). The design emphasizes the imaging
capabilities of the detector in an effort to optimize the calorimeter for the
application of Particle Flow Algorithms (PFAs) to the reconstruction of
hadronic jet energies in a colliding beam environment. The readout of the
chambers is segmented into 1 x 1 cm2 pads, each read out with a 1-bit (single
threshold) resolution. The prototype with approximately 500,000 readout
channels underwent extensive testing in both the Fermilab and CERN test beams.
This talk presents preliminary findings from the analysis of data collected at
the test beams
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