Senior NBI Accelerator Physicist - Beam-Physics Leader

Realta Fusion Inc; Madison (WI); On-site; USD 120,000 - 190,000; Full time

Benefits offered by this job

Equity stock options

Health, dental, and vision insurance

401(k)

Flexible PTO

Live in Madison

Job summary

Realta Fusion is seeking an Accelerator Physicist, Senior NBI Scientist to lead the beam-physics work for the NBI systems at the heart of our fusion technology in Madison. You will analyze, model, and optimize extraction, acceleration, and transport of high-current beams while collaborating with engineering teams.

The role includes mentoring junior scientists, developing modeling tools, and translating complex beam physics into concrete design guidance for Narsil and Hammir projects, with a

Qualifications

• PhD or equivalent in accelerator physics, charged-particle beams, plasma/beam extraction, or a closely related field.
• Strong knowledge of beam optics, extraction physics, perveance, emittance/divergence, electrostatic acceleration, and high-current beam transport.
• Experience with accelerator grids, multi-aperture systems, magnetic transport, stripping/reionization, or neutral beam systems is highly desirable.
• Ability to independently perform calculations, modeling, parameter scans, and design trades and translate results into clear engineering recommendations.
• Hands-on experience with beam diagnostics, testing, or accelerator commissioning is preferred.

Responsibilities

• Conduct detailed Narsil extraction, acceleration, and beam-transport physics analysis, including modeling and evaluation of ion extraction, beam acceleration, focusing, transport, and overall beam performance.
• Provide detailed beam-physics analysis and design-trade support for Hammir, evaluating accelerator and beam-transport concepts, operating parameters, and design alternatives.
• Develop, maintain, and improve accelerator and beam-physics modeling tools and supporting code used for system design, performance prediction, design trades, and interpretation of experimental results.
• Mentor NBI Scientists in accelerator and ion-optical physics, providing technical guidance, reviewing analyses, and helping develop their capabilities in beam modeling, accelerator physics, and interpretation of experimental data.

Skills

Beam optics

Extraction physics

Perveance

Emittance

Electrostatic acceleration

High-current transport

Beam diagnostics

Accelerator commissioning

Modeling and simulations

Mentoring

Education

PhD or equivalent in accelerator physics

Job description

Realta Fusion is seeking an Accelerator Physicist, Senior NBI Scientist to lead the beam-physics work for the NBI systems at the heart of our fusion technology in Madison. You will analyze, model, and optimize extraction, acceleration, and transport of high-current beams while collaborating with engineering teams.

The role includes mentoring junior scientists, developing modeling tools, and translating complex beam physics into concrete design guidance for Narsil and Hammir projects, with a