Explanipedia

Avoiding beam instabilities and resonances with circular modes Open

Onur Gilanliogullari, B. Mustapha, P. Snopok · 2025

Beam instabilities and resonances affect the transverse dynamics in particle accelerators and, when encountered, can trigger emittance growth and beam loss. Resonance lines originate from nonlinear elements and effects in the lattice,and i…

Precision beam diagnostics at the NuMI facility using muon monitor observations Open

NULL AUTHOR_ID, S. Ganguly, D. A. Wickremasinghe, P. Snopok, Yiding Yu · 2025

The Neutrinos at the Main Injector (NuMI) facility at Fermilab delivers an intense neutrino beam for multiple experiments by producing pions that decay into neutrinos, muons, and other particles. Magnetic horns—the primary pion focusing el…

A Formalism for the Transport and Matching of Coupled Beams in Accelerators Open

Onur Gilanliogullari, B. Mustapha, P. Snopok · 2025

Understanding transverse coupling dynamics is crucial for beam physics, accelerator design, and operations. Currently, most accelerators are designed for uncoupled beams, and coupling is treated as an error or perturbation. Many transverse…

Circular modes for linacs Open

Onur Gilanliogullari, B. Mustapha, P. Snopok · 2024

Circular mode beams are beams with non-zero angular momentum and strong inter-plane plane coupling. This coupling can be achieved in linear accelerators (linacs) through magnetization of electrons or ions at the source. Depending on the ma…

Minimizing space charge tune spread and increasing beam quality parameters with circular modes Open

Onur Gilanliogullari, B. Mustapha, P. Snopok · 2024

Space charge has been a limiting effect for low energy accelerators inducing emittance growth and tune spread. Tune shift and tune spread parameters are important for avoiding resonances, which limits intensity of the beam. Circular modes …

NuMI Beam Monitoring Simulation and Data Analysis Open

Y. Yu, Thomas J. Carroll, S. Ganguly, K. Lang, Eduardo Ossorio , et al. · 2024

Following the decommissioning of the Main Injector Neutrino Oscillation Search (MINOS) experiment, muon and hadron monitors have emerged as vital diagnostic tools for the NuMI Off-axis Appearance (NOvA) experiment at Fermilab. These tools …

Uniform Distribution Technique for Neutrino Beam Scan Simulation Open

D. A. Wickremasinghe, S. Ganguly, K. Yonehara, R. Zwaska, Yang Yu , et al. · 2023

In Fermilab's neutrino facilities such as the Neutrinos at the Main Injector (NuMI) and the upcoming Long Baseline Neutrino Facility (LBNF), a proton beam strikes high-power target, producing positively and negatively charged pions and kao…

The Ionization Profile Monitors in the Recycler Ring Open

B. Babacan, Robert Ainsworth, Kyle Hazelwood, D.K. Morris, P. Snopok · 2023

after applying corrections. The results were compared with other diagnostics and the change in the beam size for different parameters are presented in this paper.

Machine learning algorithms based on muon monitor data and simulation Open

Yiding Yu, P. Snopok, A. Wickremasinghe, K. Yonehara · 2023

Machine Learning Applications to Maintain the NuMI Neutrino Beam Quality at Fermilab Open

D. A. Wickremasinghe, Y. Yu, Eduardo A. Ossorio Alfaro, S. Ganguly, K. Yonehara , et al. · 2023

The NuMI target facility at Fermilab produces an intense muon neutrino beam for the NOvA (NuMI Off-axis νe Appearance) long baseline neutrino experiment. Three arrays of muon monitors located downstream of the hadron absorber in the NuM…

A Staged Muon-based Facility to Enable Intensity and Energy Frontier Science in the US Open

Jean‐Pierre Delahaye, C. Ankenbrandt, Stephen Brice, D. Denisov, E. Eichten , et al. · 2023

Muon-based facilities offer a unique potential to provide capabilities at both the Intensity Frontier with Neutrino Factories and the Energy Frontier with Muon Colliders ranging from the Higgs energy to the multi-TeV energy range. They rel…

Uniform Beam Simulation Technique for Beam Scans and Machine Learning Studies at Fermilab Open

A. Wickremasinghe, S. Ganguly, K. Yonehara, R. Zwaska, Yiding Yu , et al. · 2023

Fermilab's neutrino facilities, including NuMI and the upcoming LBNF, use proton beams to produce positively and negatively charged pions and kaons. Detailed simulations are necessary to study particle interactions and beam propagation. To…

The Ionization Profile Monitors in the Recycler Ring Open

B. Babacan, Robert Ainsworth, Kyle Hazelwood, D.K. Morris, P. Snopok · 2023

The ionization profile monitors (IPMs) are used to measure the beam size in synchrotrons. Both the Fermilab Recycler and Main Injector (MI) machines have IPMs. However, they were not well understood enough to provide confidence in their me…

Exploring the Focusing Mechanism of the NuMI Horn Magnets Open

K. Yonehara, S. Ganguly, D. A. Wickremasinghe, P. Snopok, Yiding Yu · 2023

Neutrinos at the Main Injector (NuMI) is a project at Fermilab that provides an intense beam of neutrinos used by a number of experiments. NuMI creates a beam of pions that decay into neutrinos, muons, and other particles. Muons are regist…

Machine Learning Applications to Maintain the NuMI Neutrino Beam Quality at Fermilab [Slides] Open

A. Wickremasinghe, K. Yonehara, P. Snopok, S. Ganguly, Yiding Yu , et al. · 2022

This effort is important for future applications such as beam quality assurance, anomaly detections, neutrino beam systematics studies and neutrino beam quality assurance. Our results demonstrate the advantages of developing useful ML appl…

NuMI Beam Monitoring Simulation and Data Analysis Status and Progress Open

Yiding Yu, N. Bostan, Thomas L. Carroll, K. Lang, P. Snopok , et al. · 2022

With the Main Injector Neutrino Oscillation Search (MINOS) experiment decommissioned, muon and hadron monitors became an important diagnostic tool for the NuMI Off-axis vμ Appearance (NOvA) experiment at Fermilab to monitor the Neutrinos a…

Detector and Beamline Simulation for Next-Generation High Energy Physics Experiments Open

Sunanda Banerjee, D. N. Brown, D. N. Brown, P. Calafiura, Jacob Calcutt , et al. · 2022

The success of high energy physics programs relies heavily on accurate detector simulations and beam interaction modeling. The increasingly complex detector geometries and beam dynamics require sophisticated techniques in order to meet the…

Simulations of the tapered Guggenheim 6D cooling channel for the Muon Collider Open

P. Snopok, Chicago Iit, G. Hanson, Riverside Uc, R. Palmer · 2022

Recent progress in six-dimensional (6D) cooling simulations for the Muon Collider based on the RFOFO ring layout is presented. In order to improve the performance of the cooling channel a tapering scheme is studied that implies changing th…

Enabling Intensity and Energy Frontier Science with a Muon Accelerator Facility in the U.S.: A White Paper Submitted to the 2013 U.S. Community Summer Study of the Division of Particles and Fields of the American Physical Society Open

J-P. Delahaye, C. Ankenbrandt, Alex Bogacz, S. J. Brice, A. Bueno , et al. · 2022

A staged approach towards muon based facilities for Intensity and Energy Frontier science, building upon existing and proposed facilities at Fermilab, is presented. At each stage, a facility exploring new physics also provides an R&D platf…

Wedge Absorber Design for the Muon Ionisation Cooling Experiment Open

Chris Rogers, Andreas Jansson, P. Snopok, L. Coney · 2022

In the Muon Ionisation Cooling Experiment (MICE), muons are cooled by ionisation cooling. Muons are passed through material, reducing the total momentum of the beam. This results in a decrease in transverse emittance and a slight increase …

Wedge absorber design and simulation for MICE Step IV Open

Chris Rogers, P. Snopok, L. Coney, G. Hanson · 2022

In the Muon Ionization Cooling Experiment (MICE), muons are cooled by passing through material, then through RF cavities to compensate for the energy loss; which reduces the transverse emittance. It is planned to demonstrate longitudinal e…

Circular Modes for Mitigating Space-Charge Effects and Enabling Flat Beams Open

Onur Gilanliogullari, B. Mustapha, P. Snopok · 2022

Flat beams are preferred in high-intensity accelerators and high-energy colliders due to one of the transverse plane emittances being smaller, which enhances luminosity and beam brightness. However, flat beams are devastating at low energi…

Hadron Monitor Calibration System for NuMI Open

Nicolette Muldrow, P. Snopok, K. Yonehara · 2022

NuMI (Neutrinos at Main Injector) beamline at Fermi National Accelerator Laboratory provides neutrinos to various neutrino experiments. The hadron monitor consisting of a 5 by 5 array of ionization chambers is part of the diagnostics for t…

Progress on a Study of Target-Horn System for Muon Colliders Open

Nicolette Muldrow, P. Snopok, K. Yonehara · 2021

Neutrino Flux Analysis and Monitoring for Power Improvements in NuMI Open

N. Bostan, K. Yonehara, L. Aliaga Soplin, A. Wickremasinghe, P. Snopok , et al. · 2020

The determination of the neutrino flux from accelerator neutrino beams exhibits a challenge for the current and future short- and long-baseline neutrino experiments. These experiments provide the measurements of the neutrino oscillation pa…

Advanced Simulation Tools for Muon-Based Accelerators Open

P. Snopok · 2019

The project developed new software tools incorporating the most accurate theoretical calculations and experimental data available for crucial and not-yet-considered physics processes specific to muon accelerators. These new tools were appl…

NuMI Beam Muon Monitor Data Analysis and Simulation for Improved Beam Monitoring Open

P. Snopok, A. Bashyal, T. Rehak, D. A. Wickremasinghe, K. Yonehara , et al. · 2019

The NuMI muon monitors (MMs) are a very important diagnostic tool for monitoring the stability of the neutrino beam used by the NOvA experiment at Fermilab. The goal of our study is to maintain the quality of the MM signal and to establish…

The NuMAX Long Baseline Neutrino Factory concept Open

J-P. Delahaye, C. Ankenbrandt, S. A. Bogacz, Patrick Huber, H. Kirk , et al. · 2018

A Neutrino Factory where neutrinos of all species are produced in equal quantities by muon decay is described as a facility at the intensity frontier for exquisite precision providing ideal conditions for ultimate neutrino studies and the …

Progress on Beam-Plasma Effect Simulations in Muon Ionization Cooling Lattices Open

James A. Ellison, P. Snopok · 2018

New computational tools are essential for accurate modeling and simulation of the next generation of muon-based accelerators. One of the crucial physics processes specific to muon accelerators that has not yet been simulated in detail is b…

A Wedge Test in MICE Open

T. Mohayai, P. Snopok, David Neuffer, D. J. Summers · 2018

Emittance exchange mediated by wedge absorbers can be used for longitudinal ionization cooling and for final transverse emittance minimization for a muon collider. A wedge absorber within the Muon Ionization Cooling Experiment (MICE) could…

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