STATUS OF THE DARHT PASE 2 LONG-PULSE ACCELERATOR

Conference · Mon Jan 01 00:00:00 EST 2001

OSTI ID:975637

Burns, M J ^[1]; Carlsten, B E ^[2]; Davis, H A ^[3]; Ekdahl, C A ^[4]; Fortgang, C M ^[5]; McCuistian, B T ^[6]; Merrill, F E ^[7]; Nielsen, K E ^[8]; Rutkowski, H L ^[9]; Waldron, W L; Yu, Simon S; Caporaso, G J; Chen, Y -J; Cook, E G ^[10]; Sapayan, S ^[11]; Watson, J A; Westenskow, G A ^[12]

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1. Michael J.
2. Bruce E.
3. Harold A.
4. Carl A.
5. Clifford M.
6. Brian T.
7. Frank E.
8. Kurt E.
9. Henry L.
10. Edward G.
11. Steve
12. Glen A.

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• OSTI ID: 975637
• Report Number(s): LA-UR-01-3810; TRN: US1002518
• Resource Relation: Conference: Submitted to: PAC 2001, Chicago, Illinois, June 18-22, 2001.
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BREMSSTRAHLUNG
DESIGN
ELECTRONS
HYDRODYNAMICS
INDUCTION
PRODUCTION
SPATIAL RESOLUTION
TARGETS
TESTING
TRANSPORT
VELOCITY