STATUS OF THE DARHT PASE 2 LONG-PULSE ACCELERATOR

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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 electro-optical x-ray imaging system, and other hydrodynamics testing systems. The second phase will be operational in 2004 and features the addition of a 20-MeV, 2-kA, 2-microsecond accelerator. Four ... continued below

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6 p.

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Burns, M. J. (Michael J.); Carlsten, B. E. (Bruce E.); Davis, H. A. (Harold A.); Ekdahl, C. A. (Carl A.); Fortgang, C. M. (Clifford M.); McCuistian, B. T. (Brian T.) et al. January 1, 2001.

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Description

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 electro-optical x-ray imaging system, and other hydrodynamics testing systems. The second phase will be operational in 2004 and features the addition of a 20-MeV, 2-kA, 2-microsecond 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 1.6-MHz. Production of the first beam from the Phase 2 injector will occur this year. In this paper we will present the overall design of the Phase 2 long-pulse injector and accelerator as well as some component test results. We will also discuss the downstream transport section that contains the fast kicker used to separate the long-pulse beam into short bursts suitable for radiography as well as the x-ray conversion target assembly. Selected experimental results from this area of the project will also be included. Finally, we will discuss our plans for initial operations.

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6 p.

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  • Submitted to: PAC 2001, Chicago, Illinois, June 18-22, 2001.

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  • Report No.: LA-UR-01-3810
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975637
  • Archival Resource Key: ark:/67531/metadc934174

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 2001

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 5:08 p.m.

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Burns, M. J. (Michael J.); Carlsten, B. E. (Bruce E.); Davis, H. A. (Harold A.); Ekdahl, C. A. (Carl A.); Fortgang, C. M. (Clifford M.); McCuistian, B. T. (Brian T.) et al. STATUS OF THE DARHT PASE 2 LONG-PULSE ACCELERATOR, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc934174/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.