A Pellet Model of DT Ignitor and DD Fuel for an ICF Reactor without Tritium Breeding Blanket
- 1 July 1983
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 22 (7R) , 1194-1199
- https://doi.org/10.1143/jjap.22.1194
Abstract
A pellet concept of a DT ignitor and DD fuel for an ICF reactor without a tritium breeding blanket is analytically examined under the condition that T is bred through the DD reactions. There is the additional restriction that the tritium breeding ratio in a pellet is unity, including the in situ DT burn in the DD region. Model calculations show that sufficiently high pellet gain can be obtained in a DT-DD pellet, when fuel ρR increases to ∼40 g/cm2 and the fraction of energy released in the DD region becomes dominant. One-dimensional neutronics calculations carried out for a reference pellet model with ρR∼40 g/cm2 show that the neutron heating in the compressed pellet model is evident and the total energy of the neutrons escaping from the pellet is reduced from ∼2000 MJ to 330 MJ for a microexplosion of ∼3000 MJ.Keywords
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