2025 – Density control via real-time variation of pellet mass and frequency

Density control via real-time variation of pellet mass and frequency

2025 Research Campaign, Plasma Control

Purpose of Experiment

This experiment seeks to optimize density control throughout an evolving discharge, by fully leveraging the degrees-of-freedom available to ITER/FPP-relevant actuators, by controlling both the pellet mass and frequency.

Experimental Approach

This experiment will exploit a new capability to adjust the size of fueling pellets on DIII-D, to optimize density control throughout an evolving discharge by controlling the pellet mass in real time.

Join us during Nuclear Science Week! DIII-D will be hosting public tours of our facility on October 21st at 9am and 2pm. Come see how our incredible team of scientists and engineers from around the world are working together to move fusion energy from science fiction to reality.

Advanced registration required: 2026 DIII-D Tours

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