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Commonwealth Fusion Systems · 2 months ago

Scientist - Scenarios and Integrated Modeling

Devens, MA

Full-time

Onsite

Mid, Senior Level

$110K/yr - $185K/yr

2+ years exp

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. The Scientist - Scenarios and Integrated Modeling will develop plasma physics scenarios for SPARC and ARC based on comprehensive integrated simulation and modeling of the core and edge plasma.

Clean EnergyElectrical DistributionEnergyEnvironmental EngineeringRenewable Energy

Responsibilities

Refine, optimize, and validate a comprehensive integrated modeling toolset capable of predicting plasma performance and dynamics

Toolset will include models of: core turbulent and neoclassical transport, H-mode pedestal and L-mode edge, coupling to boundary, ICRH heating, energetic particle physics, MHD stability, and impurity transport

Toolset will include very rapid execution workflows appropriate for control, rapid execution workflows appropriate for experiment planning and optimization, as well as higher fidelity models for offline analysis and deeper exploration of critical physics

Work closely with a multi-institutional team of experts to incorporate state-of-the-art physics capabilities, and validate models

Employ integrated modeling tools to plan and execute plasma pulses to achieve key goals including net fusion power on SPARC, and continuously improve toolset as new data becomes available

Identify, execute, and continuously improve operational scenario for achieving SPARC goals

Work closely with physics, diagnostics, operations, plasma control, and software teams to design and execute plasma scenarios on SPARC

Contribute to physics design and optimization of ARC

Qualification

Plasma physicsFusion simulation softwareMagnetic fusion experimentsIntegrated modeling toolsetPythonC++FortranResults focusedTeamwork skillsCommunication skillsPerform under pressure

Required

PhD in plasma physics or a closely related discipline

Minimum 2 years post-PhD experience in magnetic fusion

Significant experience with fusion plasma simulation and modeling software

Significant experience in planning, executing, and/or analyzing fusion experiments

Expertise in magnetic fusion experiment and simulation

Strong insight on physics issues associated with integration of regions (core, edge, boundary) and physics (transport, MHD, heating, plasma material interaction..) in magnetic fusion systems

Strong teamwork skills

Ability to communicate ideas and results clearly

Results focused with understanding of the fusion goal

Ability to think clearly and perform well under pressure

Perform extended activities such as typing, standing, sitting, etc

Willingness to travel or work required nights/weekends/on-call regularly

Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics

Preferred

5+ years post-PhD experience, including hands-on experience planning and executing magnetic fusion experiments, and experience using and developing fusion simulation codes

Fusion experiment planning and control room experience

Familiarity with tokamak simulation tools including core transport models, pedestal/edge models, boundary models

Experience with plasma transport codes such as TRANSP, IPS-FASTRAN, ASTRA, JINTRAC, TGYRO

Familiarity with ICRF physics and operation

Familiarity with MHD physics, and impact of non-axisymmetric fields

Familiarity with tokamak plasma breakdown, rampup and rampdown

Experience developing fusion simulation codes

Experience integrating simulation tools into a robust toolchain

Familiarity with Python, C++, Fortran, and git version control

Experience with broad based fusion collaborations, ideally including international collaborations