The Plasma Science and Fusion Center (PSFC) is recognized internationally as a leading university laboratory for the study of plasma physics and fusion energy science. The center's mission is to advance the science and technology of magnetic and inertial confinement fusion, to develop innovative plasma applications, and to educate the next generation of plasma scientists, engineers, and fusion leaders. During academic year 2022–2023, PSFC researchers made landmark contributions across multiple fronts of fusion science and technology, spanning magnetic confinement fusion, high-temperature superconducting (HTS) magnet development, inertial confinement fusion, high-energy-density physics, advanced computation, and plasma diagnostic innovations. A cornerstone of PSFC's magnetic fusion energy program remains the collaborative endeavor with Commonwealth Fusion Systems (CFS) to design, build, and operate SPARC—a compact, net-fusion-energy-producing tokamak leveraging revolutionary high-temperature superconductor (HTS) magnet technology. Key accomplishments during this reporting period include: - Continued physics validation, integrated modeling, and engineering design refinement for SPARC systems. - Maturation of the HTS toroidal field and poloidal field magnet systems, incorporating lessons learned from the landmark 20-Tesla HTS coil demonstration. - Development and testing of advanced radiofrequency (RF) heating and current drive concepts optimized for high-magnetic-field compact tokamaks. - Deepening integration between MIT faculty, research scientists, postdocs, and graduate students with the SPARC project engineering and physics teams. In addition to SPARC, PSFC maintains vigorous collaborations on premier magnetic confinement facilities worldwide: - **DIII-D National Fusion Facility (General Atomics, USA):** Contributions to boundary physics, transport and turbulence measurements, and advanced RF heating scenarios. - **Wendelstein 7-X (IPP Greifswald, Germany):** Deployment and analysis of sophisticated diagnostic instruments measuring plasma turbulence and impurity transport in stellarator configurations. - **International Facilities (EAST in China, KSTAR in South Korea):** Joint research on long-pulse high-performance plasma scenarios, divertor physics, and advanced magnetics. - **Alcator C-Mod Legacy Data:** Continued mining and analysis of high-density, high-field data from MIT's Alcator C-Mod to benchmark predictive simulation codes for future fusion devices. The Theory and Computation Division continues to pioneer basic and applied plasma physics research, providing essential analytical foundations and advanced numerical simulation tools. Key areas of investigation include: - Microturbulence and anomalous thermal and particle transport modeling using high-performance gyrokinetic codes. - Radiofrequency wave propagation, absorption, and mode conversion physics in magnetized plasmas. - Magnetohydrodynamic (MHD) stability, disruption physics, and runaway electron dynamics during rapid plasma terminations. - Integration of machine learning and artificial intelligence methods into multi-scale plasma modeling and real-time control workflows. The High-Energy-Density Physics (HEDP) Division at PSFC plays a crucial role in the national inertial confinement fusion (ICF) program in collaboration with the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory and the OMEGA Laser Facility at the University of Rochester. Highlights include: - Contributions to the historic achievement of fusion ignition and target gain > 1 at the National Ignition Facility (NIF). - Development and deployment of specialized nuclear diagnostics, including magnetic recoil spectrometers (MRS) and proton/ion spectrometers, for precision measurements of yield, ion temperature, and areal density. - High-impact student and postdoc-led experimental campaigns probing basic nuclear science, astrophysical plasma phenomena, and stopping-power physics in warm dense matter. The PSFC Magnet Technology Division continues to lead groundbreaking advancements in high-field superconducting magnets for fusion and other applications: - Advancement of REBCO (Rare-Earth Barium Copper Oxide) HTS cable architectures, investigating VIPER-style cables, joints, insulation techniques, and quench detection systems. - Multi-physics structural, thermal, and electromagnetic testing of magnet subcomponents under extreme mechanical stress and cryogenic conditions. - Expansion of academic and training modules through the Magnet Academy to develop specialized engineering talent for the burgeoning fusion industry. Educational activities are central to the mission of the PSFC, spanning undergraduate education (UROP), graduate research training across multiple MIT academic departments (Nuclear Science and Engineering, Physics, Electrical Engineering and Computer Science, Mechanical Engineering, and Materials Science and Engineering), and public outreach. Initiatives include: - Mentorship of dozens of doctoral and master's students engaged in world-class thesis research. - Active public tours, K-12 STEM outreach, and demonstration sessions utilizing plasma demonstrations and interactive exhibits. - Commitment to fostering diversity, equity, and inclusion across the center, supported by the PSFC DEI Committee and targeted student recruitment and retention initiatives. The center is directed by Professor Dennis Whyte (Hitachi America Professor of Engineering). Research divisions and initiatives are led by prominent faculty and research staff, working alongside a dedicated cohort of research scientists, engineers, postdoctoral associates, graduate students, and administrative support personnel who together drive the vibrant interdisciplinary ecosystem of the PSFC.