skip to main content

SciTech ConnectSciTech Connect

Title: An in situ runaway electron diagnostic for DIII-D

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:
;  [1] ;  [2]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. General Atomics, San Diego, California 92121 (United States)
Publication Date:
OSTI Identifier:
22308636
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPTON EFFECT; DOUBLET-3 DEVICE; ENERGY SPECTRA; IMAGES; LASERS; PLASMA; RUNAWAY ELECTRONS; SAMPLING; SPATIAL RESOLUTION; TIME RESOLUTION; TIME-OF-FLIGHT METHOD; X-RAY RADIOGRAPHY