atcollab/at
Dec 2024 – Oct 2025
5 Months active
Languages Used
MATLABPythonCC++
Technical Skills
Code RefactoringLibrary DevelopmentNumerical AnalysisPhysicsAccelerator PhysicsC Programming
Simon White
PROFILE
Simon White
Over five months, Sam White developed and enhanced core features in the atcollab/at repository, focusing on accelerator physics simulations and scientific computing. He introduced resonance driving term analysis and GPU-accelerated aperture checks, integrating these with both Python and MATLAB modules for cross-language compatibility. Sam improved data serialization by extending NumPy and JSON support, and added new simulation elements such as CrabCavityPass. He addressed numerical stability in quantum diffusion calculations using linear algebra techniques and refactored orbit handling for accuracy. His work, primarily in Python, C++, and MATLAB, demonstrated depth in code refactoring, performance optimization, and robust scientific modeling.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
7Total
Bugs
2
Commits
7
Features
5
Lines of code
2,365
Activity Months5
Your Network
27 people
Work History
October 2025
1 Commits
Oct 1, 2025Month 2025-10: Focused on stabilizing the quantum diffusion matrix calculations in the atcollab/at repository to improve reliability and business value of simulations. Delivered a Quantum Diffusion Matrix Numerical Stability Fix that introduces a symmetric-matrix formulation with reconstruction, and applies an eigenvalue threshold for noise suppression. Also enhanced tests and refined tolerance parameters to ensure stability across scenarios.
1 Commits
Oct 1, 2025Month 2025-10: Focused on stabilizing the quantum diffusion matrix calculations in the atcollab/at repository to improve reliability and business value of simulations. Delivered a Quantum Diffusion Matrix Numerical Stability Fix that introduces a symmetric-matrix formulation with reconstruction, and applies an eigenvalue threshold for noise suppression. Also enhanced tests and refined tolerance parameters to ensure stability across scenarios.
October 2025
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for atcollab/at focused on correcting orbit calculations and refactoring to improve reliability and accuracy of reference point handling. No new features released this month; the emphasis was on a critical bug fix and code quality improvements that ensure downstream models and analyses operate on correct orbit data, improving trust and reducing risk of incorrect results.
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for atcollab/at focused on correcting orbit calculations and refactoring to improve reliability and accuracy of reference point handling. No new features released this month; the emphasis was on a critical bug fix and code quality improvements that ensure downstream models and analyses operate on correct orbit data, improving trust and reducing risk of incorrect results.
July 2025
2 Commits • 2 Features
Jul 1, 2025In July 2025, delivered GPU-accelerated aperture checks and improved AT code documentation in the atcollab/at repository, driving performance gains and better developer onboarding. Focus areas included enforcing particle-tracking aperture constraints via GPU, and clarifying code behavior for future maintainability.
2 Commits • 2 Features
Jul 1, 2025In July 2025, delivered GPU-accelerated aperture checks and improved AT code documentation in the atcollab/at repository, driving performance gains and better developer onboarding. Focus areas included enforcing particle-tracking aperture constraints via GPU, and clarifying code behavior for future maintainability.
July 2025
June 2025
2 Commits • 2 Features
Jun 1, 2025Monthly summary for 2025-06 focusing on key feature deliveries, major bug fixes, impact, and technical capabilities demonstrated in atcollab/at.
June 2025
2 Commits • 2 Features
Jun 1, 2025Monthly summary for 2025-06 focusing on key feature deliveries, major bug fixes, impact, and technical capabilities demonstrated in atcollab/at.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 — Delivered Resonance Driving Terms (RDT) support in pyat. Introduced a dedicated rdt module with functions to compute focusing, coupling, chromatic, geometric, and tuneshift RDTs, and updated MATLAB and Python physics modules to integrate RDT functionality and ensure cross-language compatibility. The work is anchored by commit 92a2f73e3a04662e7caa9b2b12aeb8f58da7644a (Compute RDTs (#821)). This enhancement expands resonance analysis capabilities, enabling more accurate modeling and informed design decisions, and sets the foundation for validation and benchmarking workflows across Python and MATLAB toolchains.
1 Commits • 1 Features
Dec 1, 2024December 2024 — Delivered Resonance Driving Terms (RDT) support in pyat. Introduced a dedicated rdt module with functions to compute focusing, coupling, chromatic, geometric, and tuneshift RDTs, and updated MATLAB and Python physics modules to integrate RDT functionality and ensure cross-language compatibility. The work is anchored by commit 92a2f73e3a04662e7caa9b2b12aeb8f58da7644a (Compute RDTs (#821)). This enhancement expands resonance analysis capabilities, enabling more accurate modeling and informed design decisions, and sets the foundation for validation and benchmarking workflows across Python and MATLAB toolchains.
December 2024
Activity
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Quality Metrics
Correctness90.0%
Maintainability82.8%
Architecture84.2%
Performance75.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++MATLABPython
Technical Skills
Accelerator PhysicsC ProgrammingC++Code RefactoringData SerializationDocumentationGPU ProgrammingLibrary DevelopmentLinear AlgebraMATLAB ScriptingNumPy IntegrationNumerical AnalysisObject-Oriented DesignParticle Accelerator PhysicsPerformance Optimization
Repositories Contributed To
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