Radioactivity induced in gamma-ray spectrometers

SIGLEAvailable from British Library Document Supply Centre- DSC:8670.19(RAE-TM-SPACE--363) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Particle transport simulation for spaceborne, NaI gamma-ray spectrometers

SIGLEAvailable from British Library Document Supply Centre- DSC:8670.190(RAE-TM-SPACE--365) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

New Geant4 based simulation tools for space radiation shielding and effects analysis

We present here a set of tools for space applications based on the Geant4 simulation toolkit, developed for radiation shielding analysis as part of the European Space Agency (ESA) activities in the Geant4 collaboration. The Sector Shielding Analysis Tool (SSAT) and the Materials and Geometry Association (MGA) utility will first be described. An overview of the main features of the MUlti-LAyered Shielding SImulation Software tool (MULASSIS) will follow. The tool is specifically addressed to shielding optimization and effects analysis. A Java interface allows the use of MULASSIS by the space community over the World Wide Web, integrated in the widely used SPENVIS package. The analysis of the particle transport output provides automatically radiation fluence, ionising and NIEL dose and effects analysis. ESA is currently funding the porting of this tools to a low-cost parallel processor facility using the GRID technology under the ESA SpaceGRID initiative. Other Geant4 present and future projects will be presented related to the study of space environment effects on spacecrafts

Update on the use of Geant4 for the simulation of low-energy protons scattering off X-ray mirrors at grazing incidence angles

A new physics process has been implemented in the Geant4 Monte Carlo code to treat the scattering of low-energy protons at grazing incidence angles. Experimental data has shown that this is a predominantly surface process where protons are reflected without entering the surface material hence the classical multiple scattering process is not applicable. The new model has been used to revise predictions of proton fluence at the focal plane of the XMM-Newton telescope obtained in earlier simulations

Geant4 in the space environment: tools and applications

Radiation shielding analysis is a crucial process in the spacecraft and space instrument development cycle. A number of dedicated tools have been developed in the last decades for the study of the effects of radiation on materials and instruments in space. We present here a set of detailed analyses based on Monte Carlo radiation transport simulations, and new tools for space applications, both based on the Geant4 simulation toolkit, developed as part of the European Space Agency (ESA) activities in the Geant4 collaboration. Finally we present some activities initiated by ESA for the creation of a Geant4 space users' community.Anglai

Space applications of the GEANT4 simulation toolkit

Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 - 00189 (Rome) Italy Tel + 39 06 4993 3276 Fax + 39 06 4993 3385; Laboratori Nazionali di Frascati - Via E. Fermi, 40 I-00044 Frascati (Rome) Italy Tel +39 06 94031 Fax +39 06 9403 2582 / CNR - Consiglio Nazionale delle RichercheSIGLEITItal