Relativistic Electron Beam Transport Through a Background Gas at SPHINX: Drift Cell Redesign and Initial EMPIRE Simulations

Validation of plasma physics codes like EMPIRE requires performing uncertainty quantification comparing experimental data and simulation results. The Short Pulse, High Intensity Nanosecond X-radiator (SPHINX) is a high-voltage, high-shot rate bremsstrahlung accelerator at Sandia National Laboratorie...

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Bibliographic Details
Main Authors: Rhoades, E. L., Moore, C. H., Elbrecht, B. J., Szalek, N., Owens, I., Cartwright, K. L.
Format: Conference Proceeding
Language:English
Subjects:
Laboratories
Plasmas
Simulation
Tantalum
Titanium
Uncertainty
Online Access:Request full text
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Summary:Validation of plasma physics codes like EMPIRE requires performing uncertainty quantification comparing experimental data and simulation results. The Short Pulse, High Intensity Nanosecond X-radiator (SPHINX) is a high-voltage, high-shot rate bremsstrahlung accelerator at Sandia National Laboratories. SPHINX can additionally be operated in electron-beam mode by changing from the standard tantalum converter to a 1-mil titanium converter connected to a drift cell that is filled with low-pressure gas. The primary beam diagnostic for the drift cell is currently calorimetry, with an option for photon doppler velocimetry (PDV) when testing samples. Recently, design work has occurred for a new drift cell for SPHINX that will significantly expand diagnostic capabilities to allow for additional information to be gathered during validation experiments. We will present an overview of the design changes for the new drift cell and present initial results of EMPIRE simulations investigating beam behavior across a range of parameters in the new drift cell.
ISSN:2576-7208
DOI:10.1109/ICOPS45740.2023.10481244