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.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)