Thermonuclear burn performance of volume-ignited and centrally ignited bare deuterium-tritium microspheres

Stefano Atzeni

Research output: Contribution to journalArticle

74 Citations (Scopus)


A parametric study of the burn performance (measured by the fuel energy gain) of compressed deuterium-tritium fuel microspheres, with parameters of interest to inertial confinement fusion, has been performed by 1-D numerical radiation-hydrodynamics simulations. Both volume-ignited and centrally ignited (either initiallyisobaric or isochoric) configurations are considered. An overview is given of the relevant ignition conditions. Forthe first time a scaling law is presented for the limiting gain of volume-ignited fuels. Scaling laws are also givenfor the limiting gain of centrally ignited assemblies, which have the same functional dependences as predictedby previous analytical models, but different numerical coefficients. The advantage of isochoric assemblies overisobaric ones is confirmed, but found to be smaller than previously reported. The potentials of volume-ignitedand of centrally ignited, isobaric assemblies as functions of the energy, density and pressure are also criticallycompared. © 1995 The Japan Society of Applied Physics.
Original languageEnglish
Pages (from-to)1980 - 1992
Number of pages13
JournalJapanese Journal of Applied Physics
Issue number4R
Publication statusPublished - 1995
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this