Advanced PMT Characterization Study with Geant4 Simulation in Rome
Explore the latest advancements in PMT characterization using Geant4 simulation in Rome. Learn about the updated features in version 4.11, optimized contaminants decay, and upcoming developments in detector components and crystal growth distributions. Exciting outlook includes reconstruction of alpha-emitters energies and PMT signal simulation for efficient data analysis.
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Presentation Transcript
M.A.D project collaboration meeting SABRE MC simulation for PMT characterization Rome, 22/05/2025 By Chemseddine ANANNA
V4.11 Simplified G4String interfaces and implementation with C++11/17. Removed obsolete/std::string synonym member functions and deprecated non-std::string member functions, replacing with new free functions in G4StrUtil namespace. Might require user code adaptation where G4String functions are explicitly used. Major update the G4PhysicsVector and related classes; introduced new public access methods; removed obsolete unused methods; introduced possibility to use different Spline methods. Removed deprecated classes G4LPhysicsFreeVector and G4PhysicsLnVector; redirect G4PhysicsOrderedFreeVector to G4PhysicsFreeVector. New version of G4PhysicsModelCatalog, the catalog of physics models. Introduced a modelID (a unique integer for each physics model, with close values for similar/related physics models), besides an index (the position in a vector) and the name (string) of the model. C++17 is the minimum ISO C++ Standard required to compile Geant4 and all applications using it. Multithreading support is now enabled in the build of Geant4 by default. CMake 3.16 is the minimum version required to build Geant4.
WHAT IS IT ABOUT WHAT IS IT ABOUT 1. 1. The detector geometry and physics fully The detector geometry and physics fully rebuilt using Geant v4.11. rebuilt using Geant v4.11. ->Latest and greatest (compatibility issues) 2. 2. All unnecessary components are removed All unnecessary components are removed -> Compact code suitable for multiple users/didactical purposes. 3. 3. Optimization of contaminants decay within Optimization of contaminants decay within complex geometries (PTFE wrapping ). complex geometries (PTFE wrapping ). -> Efficient simulation for local execution 4. 4. Optical photons collection in Optical photons collection in SbKCs photocathodes after optical pads interaction photocathodes after optical pads interaction -> reconstruction of the expected PMT signal (W.I.P.). SbKCs(?) (?)
PRELEMINARY RESULTS 40K spectrum 1460.83 keV
PRELEMINARY RESULTS Optical photons
OUTLOOK 1. Adding further components of the detector. 2. Possible introduction distributions resulting from the crystal growth (N.F. after Z.R.) 3. Reconstruction of alpha-emitters energies and Assessment of the quenching by particle-type. 4. Simulating PMT signal photons light from the crystal (optical). 5. Getting an estimation of the PMTs efficiency to be compared with upcoming measurements in Lecce. 6. Signal waveforms reconstruction for possible M.L. use. of contamination using the optical
ANY SUGGESTIONS ? ANY SUGGESTIONS ?
