Question 1

What does the Head of Experimental Physics at Realta Fusion do?

Accepted Answer

The Head of Experimental Physics at Realta Fusion leads the company's entire experimental physics programme, from setting strategic direction to hands-on campaign execution. The role owns experimental operations on the Wisconsin HTS Axisymmetric Mirror (WHAM) at the University of Wisconsin–Madison and shapes the physics roadmap for Realta's next-generation devices, Anvil and Hammir. Day-to-day work spans plasma diagnostics development, heating physics, data analysis, and close integration with theory, modelling, and engineering teams. The position also carries external responsibilities including publications, conference presentations, and managing collaborations with national laboratories and universities.

Question 2

What is the WHAM experiment and why is it central to this role?

Accepted Answer

WHAM stands for the Wisconsin HTS Axisymmetric Mirror — a high-field magnetic mirror device operated at the University of Wisconsin–Madison in collaboration with Realta Fusion. It is Realta's primary running experiment and the main platform for validating the physics basis of high-field axisymmetric mirror fusion confinement. The Head of Experimental Physics is directly responsible for leading experimental campaigns on WHAM, including diagnostics deployment, data quality, and translating results into design inputs for future devices. WHAM is the proving ground for the concepts that will underpin Anvil and Hammir.

Question 3

What is Realta Fusion building?

Accepted Answer

Realta Fusion is a Madison, Wisconsin-based startup developing compact magnetic mirror fusion energy systems. Unlike tokamak-based approaches, Realta's technology is based on high-field axisymmetric mirror confinement — a compact configuration the company believes can be a commercially viable path to fusion power. The company's device roadmap progresses from the WHAM experiment at UW–Madison through two internally developed machines, Anvil and Hammir. Realta's stated mission is to make fusion energy a real solution to global climate change while ensuring sufficient energy supply for a growing global population.

Question 4

What salary does Realta Fusion offer for the Head of Experimental Physics role?

Accepted Answer

Realta Fusion has not published a salary range for the Head of Experimental Physics position in this listing. No compensation or benefits details are specified in the source job description. Candidates are encouraged to raise compensation expectations directly with Realta Fusion during the application process. The full listing and application link are available on Fusion Future at https://fusion-future.com/jobs/jobs-realta-fusion-head-experimental-physics.

Question 5

What qualifications and experience are required for this role?

Accepted Answer

Realta Fusion requires a PhD in Plasma Physics or a closely related field for the Head of Experimental Physics position. Candidates must have at least eight years of experience in experimental plasma physics, including demonstrated leadership of research programmes or teams. Deep hands-on experience with plasma diagnostics — including bolometers, interferometers, Thomson scattering systems, neutron diagnostics, and x-ray detectors — is essential, as is proven experience with high-vacuum systems operating at 10⁻⁹–10⁻⁸ torr. Strong knowledge of plasma heating and current drive techniques such as ECH, NBI, and RF heating is also required, along with a strong publication record.

Question 6

What seniority level is the Head of Experimental Physics at Realta Fusion?

Accepted Answer

This is a Senior to Principal-level position. The Head of Experimental Physics at Realta Fusion requires a PhD plus a minimum of eight years of experimental plasma physics experience, including direct leadership of research programmes. The role carries strategic ownership of the company's entire experimental roadmap, people management responsibility for a growing team, and external-facing duties including publications, conference presentations, and grant proposals. It reports into and partners with business leadership, indicating a seat at the senior leadership table rather than a purely technical individual contributor role.

Question 7

Where is this role based and is remote work available?

Accepted Answer

The Head of Experimental Physics role at Realta Fusion is based in Madison, Wisconsin, USA. The position is onsite — this is inherent in the nature of the work, which requires direct oversight of experimental campaigns on the WHAM device at the University of Wisconsin–Madison and future laboratory facilities. No remote or hybrid working arrangement is indicated in the job description. Candidates should expect to be physically present for experimental operations and team leadership activities.

Question 8

Why is leading experimental physics on an axisymmetric mirror technically challenging?

Accepted Answer

High-field axisymmetric mirror fusion is a demanding confinement regime that imposes unique requirements on every subsystem. Achieving the plasma densities and temperatures needed to validate the approach requires simultaneous mastery of high-field superconducting magnet operation, multiple heating systems (ECH, NBI, RF), and extreme high-vacuum conditions at 10⁻⁹–10⁻⁸ torr. Diagnosing the plasma in this environment — with sufficient accuracy to distinguish confinement physics from loss mechanisms — demands a broad suite of complementary diagnostics, from Thomson scattering and interferometry to neutron and x-ray detection. The Head of Experimental Physics must integrate all of these technical threads while ensuring that experimental results are rigorous enough to drive device design decisions for Anvil and Hammir.

Question 9

What disciplines will the Head of Experimental Physics work across at Realta Fusion?

Accepted Answer

The Head of Experimental Physics at Realta Fusion operates at the intersection of several technical disciplines. Core responsibilities span experimental plasma physics, advanced diagnostics and instrumentation engineering, plasma heating and current drive systems, high-vacuum technology, and simulation and modelling integration. The role requires deep engagement with theory and computational modelling teams to ensure experimental data informs simulation benchmarking, and with engineering teams to translate results into hardware design for Anvil and Hammir. Beyond internal collaboration, the position spans science communication, grant writing, and external partnership management with national laboratories and academic institutions — placing it firmly across the Research, Physics & Academia category as well.

Question 10

How do I apply for the Head of Experimental Physics role at Realta Fusion?

Accepted Answer

You can apply for the Head of Experimental Physics position at Realta Fusion directly through the listing on Fusion Future at https://fusion-future.com/jobs/jobs-realta-fusion-head-experimental-physics, which links to the official Realta Fusion application portal. Realta Fusion is an equal opportunity employer and evaluates all candidates on the basis of merit without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. There is no mention of Export Control restrictions in this listing.