FUSION-FISSION BLANKET OPTIONS FOR THE LIFE ENGINE

被引：3

作者：

Kramer, Kevin J. ^{[1
]}

Fratoni, Massimiliano ^{[1
]}

Latkowski, Jeffery F. ^{[1
]}

Abbott, Ryan P. ^{[1
]}

Anklam, Thomas M. ^{[1
]}

Beckett, Elizabeth M. ^{[1
,2
,3
]}

Bayramian, Andy J. ^{[1
]}

DeMuth, James A. ^{[1
]}

Deri, Robert J. ^{[1
]}

De La Rubia, Tomas Diaz ^{[1
]}

Dunne, A. Mike ^{[1
]}

El-dasher, Bassem S. ^{[1
]}

Farmer, Joseph C. ^{[1
]}

Lafuente, Antonio ^{[1
,2
,3
]}

Meier, Wayne R. ^{[1
]}

Moir, Ralph W. ^{[1
]}

Morris, Kevin L. ^{[1
]}

Moses, Edward I. ^{[1
]}

Powers, Jeffrey J. ^{[1
,4
]}

Reyes, Susana ^{[1
]}

Sawicki, Richard H. ^{[1
]}

Seifried, Jeffrey E. ^{[1
,4
]}

Storm, Erik ^{[1
]}

Taylor, Janine M. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Purdue Univ, Dept Nucl Engn, W Lafayette, IN 47907 USA

[3] Univ Politecn Madrid, ETSI Ind, Madrid, Spain

[4] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

来源：

FUSION SCIENCE AND TECHNOLOGY | 2011年 / 60卷 / 01期

关键词：

D O I：

10.13182/FST10-295

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The Laser Inertial Fusion Energy (LIFE) concept is being developed to operate as either a pure fusion or hybrid fusion-fission system. The hybrid version is designed to generate power and burn both fertile and fissile nuclear fuel. The fuel blanket is composed of TRISO-based fuel cooled by a molten salt. Low-yield (similar to 25-40 MJ) targets and a repetition rate of similar to 10-15 Hz produce a 300-500 MW fusion source. When this fusion power is coupled to a compact (2-4 m diameter) target chamber, a 14 MeV neutron flux of similar to 2 x 10(14) n/cm(2)-s drives fissile production and destruction in the fuel blanket providing an additional energy gain of 4-8, depending on the fuel and design objective. We employ a methodology using Li-6 as a neutron absorber to generate self-sustaining tritium production for fusion and to maintain constant power over the lifetime of the engine. In a single pass, fertile LIFE blankets achieve uranium and thorium utilization beyond 80% without chemical reprocessing or isotopic enrichment. Fissile blankets destroy more than 90% of the initial load of weapons grade plutonium or highly enriched uranium.

引用

页码：72 / 77

页数：6

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