Physics Overview of Infinity Two

POSTER

Abstract

Type One Energy is developing a high magnetic field, optimized stellarator for a direct path to fusion energy [1]. Infinity Two is a fusion pilot plant (FPP) baseline plasma physics design consistent with a set of buildable coils, divertor solution, required shielding, and a blanket with sufficient tritium breeding ratio. We describe the physics properties of Infinity Two, a quasi-isodynamic stellarator, optimized appealing to a max-J approach (J being the second adiabatic invariant), and designed to operate at high plasma density and high magnetic field. In this poster, we will discuss the physics properties that make Infinity Two a suitable FPP candidate, namely its reduced Neoclassical and turbulent transport, small bootstrap current, low alpha-particle losses to the first wall, magnetohydrodynamic (MHD) stability, and attainable operation point with high fusion gain.

[1] C. C. Hegna, et al. The infinity two fusion pilot plant baseline plasma physics design. Journal of Plasma Physics, 91(3):E76, 2025.

Presenters

  • Katia Camacho Mata

    • Type One Energy Group, Inc.
    • Type One Energy

Authors

  • Katia Camacho Mata

    • Type One Energy Group, Inc.
    • Type One Energy

  • David Anderson

    • Type One Energy Group, Inc.
    • Type One Energy Group

  • Eric C Andrew

    • Type One Energy Group, Inc.

  • Aaron Bader

    • Type One Energy Group

  • John Canik

    • Type One Energy Group

  • Leopoldo Carbajal

    • Type One Energy

  • Antoine J Cerfon

    • Type One Energy Group - Canada Inc

  • W. A Cooper

    • Type One Energy Group

  • Nick M Davila

    • Type One Energy Group

  • Aritra De

    • Type One Energy Group

  • Joey M Duff

    • Type One Energy Group, Inc.

  • Heinke G Frerichs

    • University of Wisconsin - Madison

  • Bonita Goh

    • Type One Energy Group, Inc.

  • Erik M Granstedt

    • Type One Energy Group

  • Walter Guttenfelder

    • Type One Energy Group

  • Chris C Hegna

    • Type One Energy Group
    • Type One Energy
    • Type One Energy Group, Inc.

  • Damien P Huet

    • Type One Energy Group
    • Type One Energy

  • Madelynn M Knilans

    • Type One Energy Group

  • Matt Landreman

    • Type One Energy Group, Inc.

  • Guillaume Le Bars

    • Type One Energy Group

  • Annie Malkus

    • Type One Energy Group, Inc.
    • Type One Energy Group

  • Noah Roth Mandell

    • Type One Energy Group

  • Bharat Medasani

    • Type One Energy Group

  • John Morrissey

    • Type One Energy Group, Inc.

  • Thomas Sunn Pedersen

    • Type One Energy Group

  • Luquant Singh

    • Type One Energy Group, Inc.
    • Type One Energy Group

  • Priyanjana Sinha

    • Type One Energy Group

  • John Schmitt

    • Type One Energy Group, Inc.

  • Joseph Talley

    • Type One Energy

  • Danah velez

    • Type One Energy
    • Type One Energy Group

  • Keely Willis

    • Type One Energy Group