학술논문

Long-Duration X-Ray Source Development for X-Ray Diffraction at The National Ignition Facility
Document Type
Conference
Source
2021 IEEE International Conference on Plasma Science (ICOPS) Plasma Science (ICOPS), 2021 IEEE International Conference on. :1-1 Sep, 2021
Subject
Aerospace
Bioengineering
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
General Topics for Engineers
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Thermodynamics
X-ray scattering
Ignition
X-ray lasers
X-ray diffraction
Logic gates
Sensors
Language
ISSN
2576-7208
Abstract
We investigate the feasibility of producing x-ray sources over timescales relevant to support time-resolved x-ray diffraction (XRDt) measurements during laser-driven dynamic compression experiments at the National Ignition Facility (NIF) [1] . XRDt probes the atomic structure in-situ of transformations at extreme thermodynamic conditions. To record XRD of phase transitions as they occur, we use high-speed (~1 ns) gated hybrid CMOS (hCMOS) imagers [2] , which provide multiple frames of data over a timescale of a few to tens of ns. Consequently, to make effective use of these imagers, the x-ray source needs to be monochromatic and uniform as long as the sensors are active.