تأثير الذرات المسبب لانبعاث الأشعة السينية (PIXE) هو تأثير فيزيائي هام لم يتم تصميمه بعد بشكل كاف في Geant4. يوفر هذا البحث تحليلا حاسما لمجال المشكلة المرتبطة بمحاكاة PIXE ويصف مجموعة من التطويرات البرمجية لتحسين محاكاة PIXE مع Geant4. تتم توضيح القدرات التي تم تطويرها للبرنامج النموذجي وتطبيقها على دراسة الحماية السلبية لمستشعرات الأشعة السينية لمجهر eROSITA الألماني في المسيرة الفضائية القادمة Spectrum-X-Gamma.
Particle induced X-ray emission (PIXE) is an important physical effect that is not yet adequately modelled in Geant4. This paper provides a critical analysis of the problem domain associated with PIXE simulation and describes a set of software developments to improve PIXE simulation with Geant4. The capabilities of the developed software prototype are illustrated and applied to a study of the passive shielding of the X-ray detectors of the German eROSITA telescope on the upcoming Russian Spectrum-X-Gamma space mission.
Particle induced X-ray emission (PIXE) is a physical effect that is not yet adequately modelled in Geant4. The current status as in Geant4 9.2 release is reviewed and new developments are described. The capabilities of the software prototype are illu
We present {gamma} spectroscopy validation measurements for the Geant4 radioactive decay simulation for a selected range of isotopes using a simple experimental setup. Using these results we point out problems in the decay simulation and where they may originate from.
A review of the present status, recent enhancements, and applicability of the SIESTA program is presented. Since its debut in the mid-nineties, SIESTAs flexibility, efficiency and free distribution has given advanced materials simulation capabilities
Radioactive decays are of concern in a wide variety of applications using Monte-Carlo simulations. In order to properly estimate the quality of such simulations, knowledge of the accuracy of the decay simulation is required. We present a validation o
A test of Geant4 simulation of electron backscattering recently published in this journal prompted further investigation into the causes of the observed behaviour. An interplay between features of geometry and physics algorithms implemented in Geant4