Cloud Platform as a Service (PaaS) provides an environment for creating and deploying applications using one of popular development platforms. This paper presents a practical solution for building a service composition platform based on the GEMBus (GEANT Multi-domain Bus) that extends the industry accepted Enterprise Service Bus (ESB) platform with automated services composition functionality a...

Radio Cherenkov radiation is arguably the most efficient mechanism for detecting showers from ultra-high energy particles of 1 PeV and above. Showers occuring in Antarctic ice should be detectable at distances up to 1 km. We report on electromagnetic shower development in ice using a GEANT Monte Carlo simulation. We have studied energy deposition by shower particles and determined shower parame...

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 electron transport algorithm implemented in Geant4 has been recently revised. The modifications concern several physics aspects of the simulation model: the step limitation, the energy loss along a step and the multiple scattering. The Fano cavity setup was used to test these developments. The upgrades increase significantly the accuracy of the electron transport simulation. The ratio of si...

The Monte Carlo program ARROW, based on GEANT and using GHEISHA at energies below 30 GeV, is developed for simulation of the hadron and muon components of extensive air showers with primary energy 10 − 10 eV. Calculations of the characteristics of multi-muon events as observed underground by the LEP detectors are presented and their dependence on the primary cosmic ray composition and some basi...

SEQUIN investigates methods for providing QoS differentiated services over the IP-based networks such as the GÉANT network. Initially, the project defined a framework for supporting IP Premium service and described the procedures for establishing Service Level Agreements (SLAs) amongst networks such as GÉANT and the NRENs. In succession, SEQUIN investigates methods for monitoring the network be...

Air showers recorded by the Haverah Park Array during the years 1974-1987 have been re-analysed. For the original estimate of the energy spectrum, a relationship between the ground parameter ρ(600) and the primary energy, as determined by Hillas in the 1970s, was used. Here we describe the energy spectrum obtained using the QGSJET98 interaction model in the CORSIKA Monte Carlo code, together wi...

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...

GEM detectors (Gaseous Electron Multiplier) are a type of MPD (micro pattern detector) that introduce a new standard in spatial resolution. They offer fast tracking because of the absence of an ion-tail, and the flexibility of a wide range readouts since the detection stage and amplification stages are completely separate. This makes GEM detectors suitable for many different types of experiment...

The response of the Ge detector array Gammasphere to y-rays, both individually and in cascades, has been modeled with the Monte Carlo code GEANT 3. The effects on the performance of Gammasphere of including an auxiliary detector, the Microball, are investigated. The use of the existing Ge detectors and BGO suppression detectors as a y-ray multiplicity and total y-ray energy spectrometer is expl...