September 18, 2023

Fusion Energy Sciences Advisory Committee Meeting September 18, 2023 The meeting will be conducted remotely using ZOOM AGENDA
Time	Topic	Speaker	Presentation
12:00 noon EDT	Welcome and Opening Remarks	Professor Anne White FESAC Chair Massachusetts Institute of Technology	PDF
12:10 p.m.	FESAC Charge on International Benchmarking	Dr. Jean Paul Allain Associate Director for Fusion Energy Sciences
12:20 p.m.	Draft Report of FESAC Subcommittee on International Benchmarking	Dr. David Humphreys FESAC Subcommittee Chair General Atomics	PDF
1:40 p.m.	Discussion of Draft Report on International Benchmarking	Professor Anne White	PDF
2:30 p.m.	BREAK
2:45 p.m.	Office of Science Perspective	Dr. Asmeret Asefaw Berhe Director Office of Science
3:00 p.m.	Discussion of Draft Report on International Benchmarking (continued)	Professor Anne White
4:30 p.m.	Public Comment	Professor Anne White
5:00 p.m.	Adjourn

Highlights

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The weight of antihydrogen atoms (a positively charged positron or anti-electron orbiting a negatively charged antiproton) balances the weight of hydrogen atoms (a negatively charged electron orbiting a positively charged proton).

Antihydrogen Falls Downward!

Settling a long-standing question, scientists have proven that antihydrogen falls downward in a first-ever direct experiment.

Negative triangularity shaping in the DIII-D tokamak (left) produced plasmas with no observed instabilities for triangularities less than approximately -0.15, even at high heating power and core performance (right).

Inverting Fusion Plasmas Improves Performance

Plasmas with negative triangularity show reduced gradients that develop into instabilities, including under conditions relevant to fusion power plants.