Electron Transport in the no-man's land between pedestal and core

Electron transport will be investigated in the little studied, but critical, region that links the edge pedestal with the confinement region of the plasma. Edge localized modes (ELMs) are sudden, episodic losses of energy from the plasma. An ELM launches a cold pulse into the plasma that is carried by both electrons and ions. We will use the cold pulse to measure the electron thermal transport in a neglected, but important region of the plasma. The outcome will be thermal transport measurements and energy loss through the electrons due to an ELM.