ISSN:
1572-9591
Keywords:
fusion
;
inertial confinement
;
tritium
;
high power density
;
advanced fuels
;
monte carlo
;
particle transport
;
pool-type reactor
;
target designs
;
liquid metals
;
lithium
;
radiation damage
;
environmental effects
;
safety considerations
;
radioactive releases
;
risk assessment
;
neutron source
;
first wall
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract A low-tritium-inventory, high-power-density, pool-type chamber approach to inertial confinement fusion is introduced. The concept uses target designs with internal tritium and3He breeding, eliminating the need for a lithium-breeding blanket. The fraction of the fusion energy carried out by neutrons is estimated as 10%, compared with 70% in a typical D-T system, and the neutron spectrum is softer. Liquid metals other than lithium that are less chemically reactive, such as lead, can be used for first-wall protection. The reduced neutron component and the elimination of the need for a thick lithium blanket for tritium breeding lead to higher power densities and more compact chamber designs. The radiation damage at the first structural wall is reduced, leading to potentially longer wall lifetimes. A significant environmental advantage in terms of reduced radioactive release risks under operational and accident conditions is identified, primarily due to the one to two orders of magnitude reduction in the tritium inventories compared with D-T-based systems.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01058359
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