title: An in situ runaway electron diagnostic for DIII-D.
abstract: We are designing a new diagnostic based on laser inverse Compton scattering to study the dynamics of runaway electron formation during killer-pellet triggered disruptions in DIII-D, and their subsequent loss. We can improve the expected S/N ratio by using a high-intensity short-pulse laser combined with gated x-ray imagers. With 80 ps sampling, time-of-flight spatial resolution within the laser chord can be obtained. We will measure the time-resolved spatial profile and energy distribution of the runaway electrons while they are in the core of the tokamak plasma.
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: G A
authors.initials: GA
authors.lastname: Wurden
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: J A
authors.initials: JA
authors.lastname: Oertel
authors.affiliation: General Atomics, San Diego, California 92121, USA.
authors.forename: T E
authors.initials: TE
authors.lastname: Evans