Modeling proton interactions with magnetodynamic targets for electromagnetic field mapping
M. B. Zellner,
M. S. Freeman,
L. P. Neukirch,
W. C. Uhlig,
P. R. Berning,
R. L. Doney,
D. Phillips
Affiliations
M. B. Zellner
U.S. Army Development Command Army Research Laboratory, Weapons and Materials Research Directorate, Protection Division, Multi-Threat Armor Branch, Aberdeen Proving Ground, Aberdeen, Maryland 21005, USA
M. S. Freeman
Los Alamos National Laboratory, Physics Division, Dynamic Imaging and Radiography, Los Alamos, New Mexico 87545, USA
L. P. Neukirch
Los Alamos National Laboratory, Physics Division, Dynamic Imaging and Radiography, Los Alamos, New Mexico 87545, USA
W. C. Uhlig
U.S. Army Development Command Army Research Laboratory, Weapons and Materials Research Directorate, Protection Division, Applied Physics Branch, Aberdeen Proving Ground, Aberdeen, Maryland 21005, USA
P. R. Berning
U.S. Army Development Command Army Research Laboratory, Weapons and Materials Research Directorate, Protection Division, Applied Physics Branch, Aberdeen Proving Ground, Aberdeen, Maryland 21005, USA
R. L. Doney
U.S. Army Development Command Army Research Laboratory, Weapons and Materials Research Directorate, Protection Division, Multi-Threat Armor Branch, Aberdeen Proving Ground, Aberdeen, Maryland 21005, USA
D. Phillips
Nevada National Security Site, Stockpile Experimentation and Operations Directorate, Transformational Diagnostics and Imaging, Los Alamos, New Mexico 87544, USA
Proton radiography’s utilization of positively charged probing particles makes it susceptible to potential influences from electromagnetic forces generated at the target object. In this work, we investigate how the 800 MeV proton radiography system of Los Alamos National Laboratory would respond to such influences with intentions to develop proton radiography/deflectometry diagnostics capable of probing electromagnetic fields inside dynamically changing objects. To understand how the proton radiography system responds to object-generated electromagnetic fields, a series of simulations were performed, which map proton trajectories through the system. This leads to an understanding of how the radiographic images, normally dominated by multiple Coulomb scattering, would be modified. The simulations also highlight novel ways in which additional data could be collected to glean more information about electromagnetic influences within and around the target object.
