Dry-Wall Survival Under IFE Conditions

Journal Article · Mon Nov 15 04:00:00 EST 2004 · Fusion Science and Technology

OSTI ID:20849760

Raffray, A R ^[1]; El-Guebaly, L ^[2]; Federici, G ^[3]; Haynes, D ^[4]; Najmabadi, F ^[1]; Petti, D ^[5]

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1. University of California, San Diego (United States)
2. University of Wisconsin (United States)
3. ITER Garching Joint Work Site (Germany)
4. Los Alamos National Laboratory (United States)
5. Idaho National Engineering and Environmental Laboratory (United States)

The chamber wall armor is subject to demanding conditions in inertial fusion energy (IFE) chambers. IFE operation is cyclic in nature, and key issues are (a) chamber evacuation to ensure that after each shot the chamber returns to a quiescent state in preparation for the target injection and the firing of the driver for the subsequent shot and (b) armor lifetime that requires that the armor accommodate the cyclic energy deposition while providing the required lifetime. Armor erosion would impact both of these requirements. Tungsten and carbon are considered as armor for IFE dry-wall chambers based on their high-temperature and high-heat-flux accommodation capabilities. This paper assesses the requirements on armor imposed by the operating conditions in IFE, including energy deposition density, time of deposition, and frequencies; describes their impact on the performance of the candidate armor materials; and discusses the major issues.

• OSTI ID: 20849760
• Journal Information: Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 3 Vol. 46; ISSN 1536-1055
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CARBON
ENERGY ABSORPTION
ENERGY DENSITY
EROSION
EVACUATION
HEAT FLUX
ICF DEVICES
INERTIAL CONFINEMENT
INERTIAL FUSION DRIVERS
LIFETIME
PERFORMANCE
THERMONUCLEAR REACTOR MATERIALS
TUNGSTEN