Depth distributions of positron-emitting nuclei in PMMA phantoms are calculated within a Monte Carlo model for Heavy-Ion Therapy (MCHIT) based on the GEANT4 toolkit (version 8.0). The calculated total production rates of C, C and O nuclei are compared with the corresponding results of the FLUKA code and with experimental data. The distributions of e annihilation points are obtained by simulatin...

Depth distributions of positron-emitting nuclei in PMMA phantoms are calculated within a Monte Carlo model for Heavy-Ion Therapy (MCHIT) based on the GEANT4 toolkit (version 8.0). The calculated total production rates of C, C and O nuclei are compared with experimental data and corresponding results of the FLUKA code. The distributions of e annihilation points are obtained by simulating radioac...

The CLIC test facility 3 (CTF3) provides a 3.5A, 1.6μs electron beam pulse of 150MeV at the end of the linac. The average beam power is 4 kW. Beam losses will be monitored all along the linac in order to keep the radiation level as low as possible. The heavy beam loading of the linac can lead to time transients of beam position, size and energy along the pulse. To compensate for these transient...

The main objective of the IBIS modeling activities is the generation of the IBIS spectral response matrix. This generation will be done step by step by firstly constructing " calibrated model " of each IBIS subsystems. A " calibrated model " is defined as a GEANT Monte-Carlo model, further checked by intensive corresponding calibration. These calibrated models will be in a second step integrate...

In this document we discuss the output of the Detector Simulation Performance Assessment Group. We list a number of methods which consume significant CPU time and/or allocate significant memory as first targets for potential improvements which are uncorrelated with the physics content of the simulation. We suggest several approaches for reducing CPU time, by reducing the number of steps or trac...

The Virtual Monte Carlo concept allows performing simulations using Geant3, Geant4 or Fluka without changing the user code. The same framework is then used for the data analysis. An Oracle database with a build-in versioning management is used to efficiently store the detector geometry, materials and parameters. Design and implementation The schematic design of the CBM framework (CbmRoot) is sh...

Novel String Banana Template Method (SBTM) for track reconstruction in high multiplicity events in non-uniform magnetic field spectrometer with emphasis on the lowest momenta tracks with significant Multiple Scattering (MS) is described. Two steps model of track with additional parameter/s which takes into account MS for this particular track is introduced. SBTM is time efficient and demonstrat...

Linear polarisation in gamma-ray burst prompt emission is an important diagnostic with the potential to significantly constrain models. The spectrometer aboard INTEGRAL, SPI, has the capability to detect the signature of polarised emission from a bright γ–ray source. GRB 041219a is the most intense burst localised by INTEGRAL with a fluence of 5.7 ×10−4 ergs cm−2 over the energy range 20 keV–8 ...

The energy spectrum of primary cosmic rays in the energy range of 1014 1016 eV is infered from the information about the electron/photon and muon components from the KASCADE array. We combine the EAS simulation program CORSIKA and a detector simulation program, based on the GEANT package, with a multivariate statistical analysis program for an event-by-event analysis of real data. Approaches of...