activity
20192022
most citedDesign of double- and multi-bend achromat lattices with large dynamic aperture and approximate invariants

9 citations · 20 across the 5 of their papers we have counts for

collaborators

5 papers

physics.acc-ph2022

Prior-mean-assisted Bayesian optimization application on FRIB Front-End tunning

Kilean Hwang, Tomofumi Maruta, Alexander Plastun +5

Bayesian optimization~(BO) is often used for accelerator tuning due to its high sample efficiency. However, the computational scalability of training over large data-set can be pro…

physics.acc-ph2022★ 3 cited

Using Kernel-Based Statistical Distance to Study the Dynamics of Charged Particle Beams in Particle-Based Simulation Codes

Chad E. Mitchell, Robert D. Ryne, Kilean Hwang

Measures of discrepancy between probability distributions (statistical distance) are widely used in the fields of artificial intelligence and machine learning. We describe how cert…

physics.acc-ph2021★ 8 cited

Extracting Dynamical Frequencies from Invariants of Motion in Finite-Dimensional Nonlinear Integrable Systems

Chad E. Mitchell, Robert D. Ryne, Kilean Hwang +2

Integrable dynamical systems play an important role in many areas of science, including accelerator and plasma physics. An integrable dynamical system with degrees of freedom (…

physics.acc-ph2021★ 9 cited

Design of double- and multi-bend achromat lattices with large dynamic aperture and approximate invariants

Yongjun Li, Kilean Hwang, Chad Mitchell +3

A numerical method to design nonlinear double- and multi-bend achromat (DBA and MBA) lattices with approximate invariants of motion is investigated. The search for such nonlinear l…

physics.acc-ph2019

Fast dynamic aperture optimization with reversal integration

Yongjun Li, Yue Hao, Kilean Hwang +3

A fast method for dynamic aperture (DA) optimization of storage rings has been developed through the use of reversal integration. While chaotic dynamical systems have exact time-re…