The ATLAS detector is being built in CERN at the LHC. It is a general purpose detector that will be used for a variety of experiments, such as searching for the Higgs Boson. The electromagnetic calorimeter is a component of ATLAS responsible for measuring the energy deposited by e, e−, and γ. This paper presents a study of the resolution of the E-M calorimeter using data simulated by GEANT 4. A...

In this document we present the work done to date and planned future work of the GEANT TF-NGN working group studying the potential benefits (to end users and NREN operators) and feasibility of deploying a Less than Best Effort (LBE) service on GÉANT and NREN networks. We present a brief overview of the evolution of the case for LBE, through the IETF diffserv WG and the Internet2 QBone project, ...

This paper presents a simulation of the spectroscopic performance of two large CZT coplanar detectors, 1.5 1.5 cm area and 1.0 cm thick, with coplanar anodes. A code, based on the GEANT libraries and classical Monte Carlo sampling, was developed to simulate experimental scenarios. This code adapts the GEANT capabilities for simulating complex detection systems for spectroscopic studies. Detecto...

Exotic stable massive particles (SMP) are proposed in a number of scenarios of physics beyond the Standard Model. It is important that LHC experiments are able both to detect and extract the quantum numbers of any SMP with masses around the TeV scale. To do this, an understanding of the interactions of SMPs in matter is required. In this paper a Regge-based model of R-hadron scattering is exten...

The results from a study on the behavior of the GEANT 3.21 Monte Carlo program are presented. The purpose was to study the diierent options available for hadronic interactions, and where possible to compare with data. and ? hadrons were studied at discrete momenta from 100 MeV/c to 1.0 GeV/c. The main conclusion is that the hadronic package currently employed in the CBGEANT Monte Carlo is wrong...

In this chapter, we present some of the latest developments related to the provisioning of Quality of Service (QoS) in today’s networks and the associated network management structures that are or will be deployed to support them. We first give a brief overview of the most important Quality of Service proposals in the areas of Layer 2 (L2) and Layer 3 (L3) QoS provisioning in backbone networks,...

Network robustness is something all providers are striving for without being able to know all the aspects it encompasses. A key aspect of network robustness concerns its sensitivity to internal failures. In this paper, we describe a methodology allowing an AS to study the sensitivity of its network to router and link failures. We provide an open-source tool implementing the sensitivity model of...

An Aluminum (Al) target of 20cm was used in this simulation to see the eect of incoming photons at lower and higher energies ranging from 10eV −1GeV . A photoelectron is produced when a single electron in the metal completely absorbs a single photon. The kinetic energy with which the photoelectron is emitted from the metal is equal to the photon energy minus an energy that the electron expends ...

Calorimeters with a high granularity are a fundamental requirement of the Particle Flow paradigm. This paper focuses on the prototype of a hadron calorimeter with analog readout, consisting of thirty-eight scintillator layers alternating with steel absorber planes. The scintillator plates are finely segmented into tiles individually read out via Silicon Photomultipliers. The presented results a...