Plasma Spectroscopy Lead

Devens, MA /
SPARC Team – Tokamak Systems /
Full-time
/ On-site
Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy.

CFS collaborates with MIT to leverage decades of research combined with groundbreaking new high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. Our mission is to deploy these power plants to meet global decarbonization goals as fast as possible. To that end, CFS has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by the world’s leading investors, CFS is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. To implement this plan, we are looking to add dedicated people to the team who treat people well, improve our work by adding multifaceted perspectives and new ways of solving problems, have achieved outstanding results through a range of pursuits, and have skills and experience related to this role.

CFS is looking to grow the SPARC Diagnostics team with a specialization on instruments that analyze UV, visible and infrared light to interpret high temperature plasmas. Applications will include both real-time plasma control and improving scientific understanding of burning plasma physics, with tools including camera, filter and grating based instruments Conceptual design of the spectroscopy diagnostics has been completed and CFS is looking for candidates to lead more detailed system design and shepherd instruments through fabrication, assembly, calibration, commissioning and utilization. For early operations, SPARC plans to field systems to distinguish between isotopes of helium and hydrogen to control fueling, fast filterscopes and grating spectrometers to measure fuel and weakly ionized impurities, and filtered camera systems in the visible and infrared. These tools will mostly be deployed in a remote diagnostic laboratory space next to the tokamak hall. Candidates will work closely with the Optical Imaging Lead who’s role will focus on design and deployment of light extraction and relay optics in port-plugs and the tokamak hall. Further enhancements are also envisioned over SPARC’s operational life that leverage techniques demonstrated on existing tokamaks. Candidates will work as part of an integrated diagnostic and operations team that includes MIT-PSFC partners and fusion community collaborators from around the world.

This team member will:

    • Complete the design of the SPARC’s UV/visible/IR spectroscopy and camera diagnostics, working with a team of scientists, designers, analysts and engineers.
    • Integrate technical input from experts in the wider SPARC team to ensure spectroscopy diagnostics can support SPARC operational and scientific mission goals.
    • Work with the SPARC procurement team and external suppliers to source spectroscopy diagnostic components and sub-assemblies in a way that constrains cost.
    • Plan and oversee the assembly, installation, calibration and commissioning for the SPARC spectroscopy diagnostics to ensure first plasma is achieved on-schedule while also not limiting when D-T operation can occur.
    • Work with the SPARC Software team to integrate spectroscopy diagnostics into the plant-level and real-time plasma control systems.
    • Participate in the calibration and utilization of the spectroscopy diagnostics that balances learning how to operate SPARC with obtaining physics results as quickly as possible.
    • Contribute to strong safety culture, working on instrumentation in a shared diagnostic laboratory space adjacent to the SPARC Tokamak Hall.
    • Provide expertise that helps CFS build a core competency in spectroscopy measurements during burning plasmas that can help deliver future fusion devices optimized for power production.

The ideal candidate will have most, if not all, of these requirements:

    • PhD in physics, nuclear engineering, electrical engineering/related field with relevant experience in plasmas.
    • Participated in the design of a new or upgraded instrument package that analyzes light in UV, visible or infrared spectral range.
    • Familiarity with commercial-of-the-shelf spectroscopy and camera tools used in this spectral range
    • Demonstrated record of utilizing data from spectroscopy instruments to accomplish research goals or achieve mission objectives.

Additional preferred experience and/or qualifications:

    • Participated in the design or utilization of an UV, visible or infrared spectroscopy or camera-based diagnostic system on a magnetically confined plasma (does not need to be a tokamak)
    • Familiarity with modeling and simulations tools to inform spectroscopy instrument design.
    • Attention to detail with an ability to pivot between topics multiple times per day.
    • Ability to understand and manage interface issues that bridge complex engineering and physics topics.
    • Ability to lift up to 50 lbs occasionally
    • Perform activities such as climbing, typing, standing, and sitting, for extended periods of time
    • Dedication to safety to mitigate hazards that may include heat, cold, and strong magnets
    • Willingness to occasionally travel or work required nights/weekends/on-call
    • #LI-Onsite
CFS team members thrive in a fast-paced, dynamic environment and have demonstrated exceptional results through a range of different pursuits. We all tightly align with our company values of integrity, execution, impact and self-critique. As we grow, we are looking to add talented people who are mission driven and bring diverse perspectives and new ways of solving problems.

At CFS, we deeply value diversity and are an equal opportunity employer by choice. We consider all qualified applicants equally for employment. We do not discriminate on the basis of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law, ordinance, or regulation.