2026-03 Monthly Summary: Delivered MPGD Envelope CAD Alignment by updating envelopes to match the September CAD model, adjusting hit locations and dimensions for improved detector design accuracy. Commit 896b85e80c0e02fea9ec2c51f497d3ef809e8f7a (PR #986). No breaking changes to default behavior; hit locations are updated and a new material map will need to be generated. Major bugs fixed: none identified this month. Overall impact: tighter CAD-to-physics alignment, enabling more accurate detector layouts and more reliable downstream simulations. Technologies/skills demonstrated: CAD-model alignment, hit-location recalibration, material map coordination, and cross-team collaboration.

September 2025 — eic/epic: Delivered a critical bug fix aligning MPGD geometry validation with CAD specifications. Adjusted module placement and dimensions to reflect the physical design, updating MPGD hit positions and requiring reproduction of the material map. Integrated CAD-driven changes into the validation workflow and prepared for validation runs to tighten alignment between design data and reconstruction, reducing potential systematic uncertainty in measurements.

Month: 2024-11 — Focused on improving CKF accuracy for outer barrel MPGD hits in the eic/epic repository. Implemented a bug fix to ensure the last tracker hit is included in CKF analysis for all outer barrel MPGD hits, with no breaking changes to default behavior. This aligns CKF results with the full MPGD hit set and improves downstream physics analyses. Associated commit modernized MPGD BOT ACTS tolerance to (#800) as part of the fix, ensuring robust CKF computations across scenarios.