NDLI: Overview and status of the Dual-Axis Radiographic Hydrodynamics Test (DARHT) facility

Content Provider	IEEE Xplore Digital Library
Author	Burns, M. Davis, H. Ekdahl, C. Fortgang, C. Kirbie, H. McCuistian, T. Nielsen, K. Chow, K. Fawley, W. Rutkowski, H. Waldron, W. Yu, S. Caporaso, G. Chen, Y.-J. Cook, E. Watson, J.
Copyright Year	2002
Description	Author affiliation: Los Alamos Nat. Lab., NM, USA (Burns, M.; Davis, H.; Ekdahl, C.; Fortgang, C.; Kirbie, H.; McCuistian, T.; Nielsen, K.; Chow, K.)
Abstract	The Dual-Axis Radiographic Hydrodynamics Test (DARHT) facility will employ two perpendicular electron linear induction accelerators to produce intense, bremsstrahlung X-ray pulses for flash radiography. We intend to produce measurements containing three-dimensional information with sub-millimeter spatial resolution of the interior features of very dense, explosively driven objects. The facility will be completed in two phases with the first phase having become operational in July 1999 utilizing a single-pulse, 20 MeV, 2 kA, 60 ns accelerator, a high-resolution electrooptical X-ray imaging system, and other hydrodynamics testing systems. We describe this machine and discuss its current operating status. The first electron beams will be generated in the second phase of DARHT this year. The second DARHT accelerator consists of a 18.4 MeV, 2 kA, 2-microsecond pulse-width accelerator. Four short electron micropulses of variable pulse-width and spacing will be chopped out of the original, long accelerator pulse for producing time-resolved X-ray images. The second phase also features an extended, high-resolution electro-optical X-ray system with a framing speed of about 2 MHz. We discuss this accelerator by summarizing the overall design of the long-pulse injector and accelerator as well as some component test results. We also discuss the fast kicker used to separate the long-pulse beam into short bursts suitable for radiography.
Sponsorship	Electron Devices Soc. & Dielectrics & Electron Insulation Soc. IEEE
Starting Page	97
Ending Page	101
File Size	744734
Page Count	5
File Format	PDF
ISBN	0780375408
ISSN	10768467
DOI	10.1109/MODSYM.2002.1189425
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiography Hydrodynamics Life estimation X-ray imaging Electron accelerators Space vector pulse width modulation Linear accelerators Spatial resolution System testing Electron beams
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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Pulsed-power systems for the Dual-Axis Radiographic Hydrodynamics Test (DARHT) facility

Status of the DARHT phase 2 long-pulse accelerator

DAHRT accelerators update and plans for initial operation

Transverse beam motion on the second axis of the Dual Axis Radiographic Hydrodynamic Test Facility

Design and performance of the DARHT second axis induction cells and drivers

Simulation results of corkscrew motion in DARHT-II

Status of the dual axis radiographic hydrodynamics test (DARHT) facility

Dual axis radiographic hydrodynamic test (DARHT) facility overview

Abstract The Dual-Axis Radiographic Hydrodynamics Test

Overview and status of the Dual-Axis Radiographic Hydrodynamics Test (DARHT) facility

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