Postdoctoral Research Associate, MPEX Boundary and PMI Modeling
Battelle
Summary
We are seeking a Computational Physicist to carry out modeling of plasma transport and plasma-material interactions (PMI) in the Materials Plasma Exposure eXperiment (MPEX), a high-flux superconducting linear plasma facility nearing completion at ORNL. The candidate will utilize state-of-the-art 3D plasma boundary simulation tools as part of the MPEX Whole-Device Model, working closely with the experimental team to understand this device's PMI physics and optimize performance of the device in its upcoming campaigns. The position resides in the Power Exhaust and Particle Control (PEPC) group of the Fusion Energy Division at Oak Ridge National Laboratory.
Job description
Overview
We are seeking a Computational Physicist to carry out modeling of plasma transport and plasma-material interactions (PMI) in the Materials Plasma Exposure eXperiment (MPEX), a high-flux superconducting linear plasma facility nearing completion at ORNL. The candidate will utilize state-of-the-art 3D plasma boundary simulation tools as part of the MPEX Whole-Device Model, working closely with the experimental team to understand this device's PMI physics and optimize performance of the device in its upcoming campaigns. The position resides in the Power Exhaust and Particle Control (PEPC) group of the Fusion Energy Division at Oak Ridge National Laboratory.
Major Duties/Responsibilities
- Perform interpretive three-dimensional boundary plasma simulations of MPEX to inform and optimize radiofrequency (RF) power coupling, PMI target conditions, and overall device performance in preparation for early device operations.
- Integrate boundary plasma simulations with impurity transport models to assess the production and transport of in-vessel impurities in MPEX operating scenarios.
- Perform predictive modeling to inform the design of new MPEX target geometries, with a focus to improve access to divertor-relevant target exposure conditions.
- Validate simulation results against experimental data and constrain code inputs to reduce uncertainty in predictions for future experiments and guide improvements to the physics model.
- Work closely with teams of diagnosticians, theorists, applied mathematicians, and experimental plasma physicists.
- Create high impact research results to report in peer-reviewed journals and present at scientific conferences.
Basic Qualifications
PhD in Plasma Physics, Electrical Engineering, Nuclear Engineering, or a closely related field completed within the last 5 years, or expect to complete a PhD by June 30th, 2027.
Preferred Qualifications
- Experience with boundary and divertor plasma physics, and in the use of a code such as EMC3-EIRENE, SOLPS, UEDGE, SOLEDGE, or similar.
- Experience with plasma-material interactions, including models for sputtering, impurity transport, and sheath physics.
- Programming experience in Python, MATLAB, Fortran, C++ and other science relevant languages.
- Ability to work individually and/or as part of a team, set priorities to accomplish multiple tasks within deadlines, and adapt to ever-changing needs.
- Excellent oral and written communication skills supporting regular interactions with fellow research staff, peer reviewers, research sponsors, and to prepare reports, proposals, and presentations.
Requirements
- PhD in Plasma Physics, Electrical Engineering, Nuclear Engineering, or a closely related field completed within the last 5 years, or expect to complete a PhD by June 30th, 2027
- Experience with boundary and divertor plasma physics, and in the use of a code such as EMC3-EIRENE, SOLPS, UEDGE, SOLEDGE, or similar
- Experience with plasma-material interactions, including models for sputtering, impurity transport, and sheath physics
- Programming experience in Python, MATLAB, Fortran, C++ and other science relevant languages
- Ability to work individually and/or as part of a team, set priorities to accomplish multiple tasks within deadlines, and adapt to ever-changing needs
- Excellent oral and written communication skills
Benefits
- Medical Plans
- Retirement Plans
- Flexible Work Hours
- Prescription Drug Plan
- Dental Plan
- Vision Plan
- 401(k) Retirement Plan
- Contributory Pension Plan
- Life Insurance
- Disability Benefits
- Vacation
- Holidays
- Parental Leave
- Legal Insurance
- Identity Theft Protection
- Employee Assistance Plan
- Flexible Spending Accounts
- Health Savings Accounts
- Wellness Programs
- Educational Assistance
- Relocation Assistance
- Employee Discounts
Company overview
Battelle is a leading nonprofit research and development organization headquartered in Columbus, Ohio, with a rich history dating back to 1929. As one of the world's largest independent research institutions, Battelle conducts scientific research and technology development across multiple sectors including national security, health and life sciences, energy, and environmental sustainability. The organization manages numerous national laboratories for the U.S. Department of Energy, including Pacific Northwest National Laboratory, and provides critical research services to government agencies, commercial clients, and academic institutions. Battelle's work spans from fundamental scientific discovery to applied technology development, with significant contributions in areas such as biomedical research, materials science, cybersecurity, and advanced manufacturing. The organization plays a vital role in translating scientific discoveries into practical applications that address complex global challenges while maintaining a strong commitment to public service and scientific integrity.