Ryland Goldman

• Built start-to-end simulations of the injector linac of the Cornell Electron Storage Ring (CESR) and the Cornell High Energy Synchrotron Source (CHESS).
• Components included the thermionic cathode, electrostatic gun, and prebuncher in WarpX and GPT, plus downstream S-band linac sections in Impact-T.
• Modeled the tungsten electron-positron converter target in Geant4.
• Adjusted simulation parameters to balance accuracy and performance, enabling future usage for ML optimization by a genetic algorithm.

• Continued Geant4 positron moderation simulations from summer 2025.
• Explored solid neon moderation as an alternative to traditional tungsten designs due to the longer positron lifetime in solid neon.
• Trialed alternative target geometries to improve positron yield, such as conical designs exhibited by Vallis et al.
• Gained hands-on hardware experience via decommissioning old NLCTA components.

• Modeled di-Higgs production at a proposed future muon collider with ILCSoft.
• Attended inaugural U.S. Muon Collider School hosted by UChicago (Aug 2025).
• Project funded through the UCLA Undergraduate Research Scholars Program.

• Simulated low-energy positron production process for the Compact Positron Source at FACET-II/NLCTA using Geant4.
• Tuned target–moderator system to optimize output positron yield by adding intermediary magnets and a decelerating RF cavity; linac setpoints determined by ML.
• Developed a modified Makhovian stopping distribution to account for edge effects in thin foils, for accurate moderation calculations which occur close to the boundary.

• Constructed a series of focusing solenoids, quadrupoles, and dipole magnets on an ultrafast electron microscope to study phase transitions of cuprate superconductors.
• Ran magnetostatics simulations in Mathematica and Radia to find the optimal parameters for the magnetic field, then designed and built the devices.
• Work supported by STROBE NSF Science & Technology Center SURS in summer 2024.

• Built financial valuation models and data processing tools, including scripts and a web interface, to parse financial reports
• Significantly reduced memory use by implementing a C++ multidimensional database

• (Winter) Led design and assembly of an electric go-kart in a team of five; used SolidWorks to visualize chassis, electronics subsystems, and steering assembly
• (Spring) Created a quadcopter with a three-person team using campus laser cutting and 3D printing facilities to construct and prototype the drone with Fusion 360
• (Fall) Designed a mid-power solid-propellant 24" model rocket made of 3D-printed components and fiberglass; launched to 3,000-ft altitude and recovered payload

Section leader for the UCLA Marching Band mellophone section.

Organizing activity events for the UCLA Marching Band during the 2025–26 academic year.