Simulation and Modelling of Non-Destructive Testing Methods Utilising Cosmic Ray Muon Flux

1. Simulation and Modelling of Non-Destructive Testing Methods Utilising Cosmic Ray Muon Flux Craig Stone HMS Sultan Nuclear Department

3. Non-destructive testing Process by which Structures (e.g. Pipe work and the reactor cores) can be Analysed, looking for: Circuitry Deposits; blocking water flow Faults in the material; nucleating cracks ..without damaging them Previously preformed using other similar techniques: Ultrasound Terrahertz imaging Magnetic/fluorescent Particle Inspection

4. Problems with performing NDT on a reactor core. Risk of Radiation Some techniques have limited effectiveness Access to the core limited by the RPV Solution Utilise cosmic particle flux No access to core needed No radiation hazard Passive: No work done on the core or inside the RPV Non-destructive testing

5. Preface – Important Physics

8. Previous Research

9. Geant4 Geant4 (for GEometry ANd Tracking) is a platform for "the simulation of the passage of particles through matter," using Monte Carlo methods. It is the successor of the GEANT series of software toolkits developed by CERN, and the first to use Object oriented programming (in C++). ~Wikipedia, accessed 12th Jan ‘10

10. How Geant4 Works C++ code holds physics information Monte carlo cycle, Checks processes; Decay, interaction etc. Declares hits, interactions or decays to the other source files Draws Particle to an image file/writes data files (optional) Repeated for the next Monte Carlo cycle Geant4

11. Existing Models

12. New Model - Geometry & Particle Source

14. Applications in industry

15. Where next - New models and analysis New Models Modifying existing model; recreate reactor core. Adding Scintilators Implementing a Multithreaded version of Geant4 Magnetic Lensing OpenScientist Analysis programme, which produces: Histogrammes Plots Voxel images.

16. Acknowledgements Thanks to… Dr Ian Giles, funding. Dr Paul Jeneson, Samantha Morris, Sean Jarman, Ross McCart and the other members of staff at HMS Sultan. Dr Paul Snow, University of Bath.